From: Matthias Schmidt <gravatronics@live.com>
Date: Fri, 27 Jul 2018 13:32:20 +0000 (+0200)
Subject: Revert "Add `declare(strict_types=1);`"
X-Git-Tag: 5.2.0_Alpha_1~364^2~118
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=6620fe7d7f2d164c610433cea893dba8ad8a10c1;p=GitHub%2FWoltLab%2FWCF.git

Revert "Add `declare(strict_types=1);`"

This reverts commit 308c880f7235735e55a6451ba07e2b13addb5855.

See #2720
---

diff --git a/wcfsetup/install/files/lib/acp/action/AJAXInvokeAction.class.php b/wcfsetup/install/files/lib/acp/action/AJAXInvokeAction.class.php
index b21fea4d92..69159e5ab4 100644
--- a/wcfsetup/install/files/lib/acp/action/AJAXInvokeAction.class.php
+++ b/wcfsetup/install/files/lib/acp/action/AJAXInvokeAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\action;
 
 /**
diff --git a/wcfsetup/install/files/lib/acp/action/AJAXProxyAction.class.php b/wcfsetup/install/files/lib/acp/action/AJAXProxyAction.class.php
index 6d2e125c00..a021971dc8 100755
--- a/wcfsetup/install/files/lib/acp/action/AJAXProxyAction.class.php
+++ b/wcfsetup/install/files/lib/acp/action/AJAXProxyAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\action;
 
 /**
diff --git a/wcfsetup/install/files/lib/acp/action/AJAXUploadAction.class.php b/wcfsetup/install/files/lib/acp/action/AJAXUploadAction.class.php
index 72534ff890..a09993d45c 100644
--- a/wcfsetup/install/files/lib/acp/action/AJAXUploadAction.class.php
+++ b/wcfsetup/install/files/lib/acp/action/AJAXUploadAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\action;
 
 /**
diff --git a/wcfsetup/install/files/lib/acp/action/CacheClearAction.class.php b/wcfsetup/install/files/lib/acp/action/CacheClearAction.class.php
index 72551fbe06..2061443d86 100644
--- a/wcfsetup/install/files/lib/acp/action/CacheClearAction.class.php
+++ b/wcfsetup/install/files/lib/acp/action/CacheClearAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\action;
 use wcf\action\AbstractAction;
 use wcf\data\package\update\server\PackageUpdateServer;
diff --git a/wcfsetup/install/files/lib/acp/action/InstallPackageAction.class.php b/wcfsetup/install/files/lib/acp/action/InstallPackageAction.class.php
index 848743ae10..f478703a14 100755
--- a/wcfsetup/install/files/lib/acp/action/InstallPackageAction.class.php
+++ b/wcfsetup/install/files/lib/acp/action/InstallPackageAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\action;
 use wcf\action\AbstractDialogAction;
 use wcf\data\application\Application;
diff --git a/wcfsetup/install/files/lib/acp/action/LogoutAction.class.php b/wcfsetup/install/files/lib/acp/action/LogoutAction.class.php
index a4656554d3..b45a156eb2 100755
--- a/wcfsetup/install/files/lib/acp/action/LogoutAction.class.php
+++ b/wcfsetup/install/files/lib/acp/action/LogoutAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\action;
 use wcf\action\AbstractSecureAction;
 use wcf\system\request\LinkHandler;
diff --git a/wcfsetup/install/files/lib/acp/action/UninstallPackageAction.class.php b/wcfsetup/install/files/lib/acp/action/UninstallPackageAction.class.php
index af8fa6547a..cbc1cb890f 100644
--- a/wcfsetup/install/files/lib/acp/action/UninstallPackageAction.class.php
+++ b/wcfsetup/install/files/lib/acp/action/UninstallPackageAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\action;
 use wcf\action\AbstractDialogAction;
 use wcf\data\application\Application;
diff --git a/wcfsetup/install/files/lib/acp/action/UserQuickSearchAction.class.php b/wcfsetup/install/files/lib/acp/action/UserQuickSearchAction.class.php
index 4ef513568b..40afcca728 100644
--- a/wcfsetup/install/files/lib/acp/action/UserQuickSearchAction.class.php
+++ b/wcfsetup/install/files/lib/acp/action/UserQuickSearchAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\action;
 use wcf\data\search\SearchEditor;
 use wcf\action\AbstractAction;
diff --git a/wcfsetup/install/files/lib/acp/action/WorkerProxyAction.class.php b/wcfsetup/install/files/lib/acp/action/WorkerProxyAction.class.php
index 9bcdf87ce7..2184c001d1 100644
--- a/wcfsetup/install/files/lib/acp/action/WorkerProxyAction.class.php
+++ b/wcfsetup/install/files/lib/acp/action/WorkerProxyAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\action;
 use wcf\action\AbstractSecureAction;
 use wcf\action\AJAXInvokeAction;
diff --git a/wcfsetup/install/files/lib/acp/form/AbstractAcpForm.class.php b/wcfsetup/install/files/lib/acp/form/AbstractAcpForm.class.php
index 25fba87246..bbd481652f 100644
--- a/wcfsetup/install/files/lib/acp/form/AbstractAcpForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/AbstractAcpForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\DatabaseObject;
 use wcf\data\DatabaseObjectEditor;
diff --git a/wcfsetup/install/files/lib/acp/form/AbstractBulkProcessingForm.class.php b/wcfsetup/install/files/lib/acp/form/AbstractBulkProcessingForm.class.php
index 451a72ede9..b79b78cb93 100644
--- a/wcfsetup/install/files/lib/acp/form/AbstractBulkProcessingForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/AbstractBulkProcessingForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\object\type\ObjectType;
 use wcf\data\object\type\ObjectTypeCache;
diff --git a/wcfsetup/install/files/lib/acp/form/AbstractCategoryAddForm.class.php b/wcfsetup/install/files/lib/acp/form/AbstractCategoryAddForm.class.php
index 850cc98c98..e8ab220458 100644
--- a/wcfsetup/install/files/lib/acp/form/AbstractCategoryAddForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/AbstractCategoryAddForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\category\CategoryAction;
 use wcf\data\category\CategoryEditor;
diff --git a/wcfsetup/install/files/lib/acp/form/AbstractCategoryEditForm.class.php b/wcfsetup/install/files/lib/acp/form/AbstractCategoryEditForm.class.php
index a703264216..0d8c471336 100644
--- a/wcfsetup/install/files/lib/acp/form/AbstractCategoryEditForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/AbstractCategoryEditForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\category\Category;
 use wcf\data\category\CategoryAction;
diff --git a/wcfsetup/install/files/lib/acp/form/AbstractCustomOptionForm.class.php b/wcfsetup/install/files/lib/acp/form/AbstractCustomOptionForm.class.php
index c0ab20b2ab..a34173777c 100644
--- a/wcfsetup/install/files/lib/acp/form/AbstractCustomOptionForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/AbstractCustomOptionForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\custom\option\CustomOption;
 use wcf\system\exception\IllegalLinkException;
diff --git a/wcfsetup/install/files/lib/acp/form/AbstractOptionListForm.class.php b/wcfsetup/install/files/lib/acp/form/AbstractOptionListForm.class.php
index f9dbffd902..4105f1e557 100755
--- a/wcfsetup/install/files/lib/acp/form/AbstractOptionListForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/AbstractOptionListForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\form\AbstractForm;
 use wcf\system\exception\UserInputException;
diff --git a/wcfsetup/install/files/lib/acp/form/AdAddForm.class.php b/wcfsetup/install/files/lib/acp/form/AdAddForm.class.php
index 686a59fa88..099f357ba7 100644
--- a/wcfsetup/install/files/lib/acp/form/AdAddForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/AdAddForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\object\type\ObjectType;
 use wcf\data\object\type\ObjectTypeCache;
diff --git a/wcfsetup/install/files/lib/acp/form/AdEditForm.class.php b/wcfsetup/install/files/lib/acp/form/AdEditForm.class.php
index 3ee6374495..9a8028c280 100644
--- a/wcfsetup/install/files/lib/acp/form/AdEditForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/AdEditForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\ad\Ad;
 use wcf\data\ad\AdAction;
diff --git a/wcfsetup/install/files/lib/acp/form/ApplicationEditForm.class.php b/wcfsetup/install/files/lib/acp/form/ApplicationEditForm.class.php
index 05b2fe5700..f314fc52e5 100644
--- a/wcfsetup/install/files/lib/acp/form/ApplicationEditForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/ApplicationEditForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\application\Application;
 use wcf\data\application\ApplicationAction;
diff --git a/wcfsetup/install/files/lib/acp/form/ArticleAddForm.class.php b/wcfsetup/install/files/lib/acp/form/ArticleAddForm.class.php
index 456dce7488..461e052c1f 100644
--- a/wcfsetup/install/files/lib/acp/form/ArticleAddForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/ArticleAddForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\article\category\ArticleCategory;
 use wcf\data\article\Article;
diff --git a/wcfsetup/install/files/lib/acp/form/ArticleCategoryAddForm.class.php b/wcfsetup/install/files/lib/acp/form/ArticleCategoryAddForm.class.php
index 25a26628c8..8095021acc 100644
--- a/wcfsetup/install/files/lib/acp/form/ArticleCategoryAddForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/ArticleCategoryAddForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\system\exception\UserInputException;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/acp/form/ArticleCategoryEditForm.class.php b/wcfsetup/install/files/lib/acp/form/ArticleCategoryEditForm.class.php
index b6b67ab25b..5aee0c1147 100644
--- a/wcfsetup/install/files/lib/acp/form/ArticleCategoryEditForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/ArticleCategoryEditForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\system\exception\UserInputException;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/acp/form/ArticleEditForm.class.php b/wcfsetup/install/files/lib/acp/form/ArticleEditForm.class.php
index 7af946904c..672c2817ab 100644
--- a/wcfsetup/install/files/lib/acp/form/ArticleEditForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/ArticleEditForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\article\Article;
 use wcf\data\article\ArticleAction;
diff --git a/wcfsetup/install/files/lib/acp/form/BBCodeAddForm.class.php b/wcfsetup/install/files/lib/acp/form/BBCodeAddForm.class.php
index 8bc5458385..64fb6464e9 100644
--- a/wcfsetup/install/files/lib/acp/form/BBCodeAddForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/BBCodeAddForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\bbcode\attribute\BBCodeAttributeAction;
 use wcf\data\bbcode\BBCode;
diff --git a/wcfsetup/install/files/lib/acp/form/BBCodeEditForm.class.php b/wcfsetup/install/files/lib/acp/form/BBCodeEditForm.class.php
index 73182653c1..e4abff3b1e 100644
--- a/wcfsetup/install/files/lib/acp/form/BBCodeEditForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/BBCodeEditForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\bbcode\attribute\BBCodeAttribute;
 use wcf\data\bbcode\attribute\BBCodeAttributeAction;
diff --git a/wcfsetup/install/files/lib/acp/form/BBCodeMediaProviderAddForm.class.php b/wcfsetup/install/files/lib/acp/form/BBCodeMediaProviderAddForm.class.php
index dabed36ef5..ea1d0f5e91 100644
--- a/wcfsetup/install/files/lib/acp/form/BBCodeMediaProviderAddForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/BBCodeMediaProviderAddForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\bbcode\media\provider\BBCodeMediaProvider;
 use wcf\data\bbcode\media\provider\BBCodeMediaProviderAction;
diff --git a/wcfsetup/install/files/lib/acp/form/BBCodeMediaProviderEditForm.class.php b/wcfsetup/install/files/lib/acp/form/BBCodeMediaProviderEditForm.class.php
index 8ad79c7603..b105cad9e0 100644
--- a/wcfsetup/install/files/lib/acp/form/BBCodeMediaProviderEditForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/BBCodeMediaProviderEditForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\bbcode\media\provider\BBCodeMediaProvider;
 use wcf\data\bbcode\media\provider\BBCodeMediaProviderAction;
diff --git a/wcfsetup/install/files/lib/acp/form/BoxAddForm.class.php b/wcfsetup/install/files/lib/acp/form/BoxAddForm.class.php
index 848c5eed07..960fee2357 100644
--- a/wcfsetup/install/files/lib/acp/form/BoxAddForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/BoxAddForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\box\Box;
 use wcf\data\box\BoxAction;
diff --git a/wcfsetup/install/files/lib/acp/form/BoxEditForm.class.php b/wcfsetup/install/files/lib/acp/form/BoxEditForm.class.php
index 2b1dd8e399..937e6c8fc1 100644
--- a/wcfsetup/install/files/lib/acp/form/BoxEditForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/BoxEditForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\box\Box;
 use wcf\data\box\BoxAction;
diff --git a/wcfsetup/install/files/lib/acp/form/CaptchaQuestionAddForm.class.php b/wcfsetup/install/files/lib/acp/form/CaptchaQuestionAddForm.class.php
index 9a1762c59d..e581686114 100644
--- a/wcfsetup/install/files/lib/acp/form/CaptchaQuestionAddForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/CaptchaQuestionAddForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\captcha\question\CaptchaQuestionAction;
 use wcf\data\captcha\question\CaptchaQuestionEditor;
diff --git a/wcfsetup/install/files/lib/acp/form/CaptchaQuestionEditForm.class.php b/wcfsetup/install/files/lib/acp/form/CaptchaQuestionEditForm.class.php
index 081ec36b30..fd9186a83e 100644
--- a/wcfsetup/install/files/lib/acp/form/CaptchaQuestionEditForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/CaptchaQuestionEditForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\captcha\question\CaptchaQuestion;
 use wcf\data\captcha\question\CaptchaQuestionAction;
diff --git a/wcfsetup/install/files/lib/acp/form/ContactOptionAddForm.class.php b/wcfsetup/install/files/lib/acp/form/ContactOptionAddForm.class.php
index 25536e3586..707b8828fa 100644
--- a/wcfsetup/install/files/lib/acp/form/ContactOptionAddForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/ContactOptionAddForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\contact\option\ContactOption;
 use wcf\data\contact\option\ContactOptionAction;
diff --git a/wcfsetup/install/files/lib/acp/form/ContactOptionEditForm.class.php b/wcfsetup/install/files/lib/acp/form/ContactOptionEditForm.class.php
index 1008943264..92775a9d0b 100644
--- a/wcfsetup/install/files/lib/acp/form/ContactOptionEditForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/ContactOptionEditForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 
 /**
diff --git a/wcfsetup/install/files/lib/acp/form/ContactRecipientAddForm.class.php b/wcfsetup/install/files/lib/acp/form/ContactRecipientAddForm.class.php
index 80b9652d3e..d76cb5b0ba 100644
--- a/wcfsetup/install/files/lib/acp/form/ContactRecipientAddForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/ContactRecipientAddForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\contact\recipient\ContactRecipient;
 use wcf\data\contact\recipient\ContactRecipientAction;
diff --git a/wcfsetup/install/files/lib/acp/form/ContactRecipientEditForm.class.php b/wcfsetup/install/files/lib/acp/form/ContactRecipientEditForm.class.php
index 9e2124d19b..44e6531ee7 100644
--- a/wcfsetup/install/files/lib/acp/form/ContactRecipientEditForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/ContactRecipientEditForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\contact\recipient\ContactRecipient;
 use wcf\data\contact\recipient\ContactRecipientAction;
diff --git a/wcfsetup/install/files/lib/acp/form/CronjobAddForm.class.php b/wcfsetup/install/files/lib/acp/form/CronjobAddForm.class.php
index 2b64b93e24..56da27145d 100755
--- a/wcfsetup/install/files/lib/acp/form/CronjobAddForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/CronjobAddForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\cronjob\Cronjob;
 use wcf\data\cronjob\CronjobAction;
diff --git a/wcfsetup/install/files/lib/acp/form/CronjobEditForm.class.php b/wcfsetup/install/files/lib/acp/form/CronjobEditForm.class.php
index 6f9b4c72b8..6248bc9b42 100755
--- a/wcfsetup/install/files/lib/acp/form/CronjobEditForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/CronjobEditForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\cronjob\Cronjob;
 use wcf\data\cronjob\CronjobAction;
diff --git a/wcfsetup/install/files/lib/acp/form/DataImportForm.class.php b/wcfsetup/install/files/lib/acp/form/DataImportForm.class.php
index 3ba460baa5..0c3f3d3398 100644
--- a/wcfsetup/install/files/lib/acp/form/DataImportForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/DataImportForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\form\AbstractForm;
diff --git a/wcfsetup/install/files/lib/acp/form/DevtoolsProjectAddForm.class.php b/wcfsetup/install/files/lib/acp/form/DevtoolsProjectAddForm.class.php
index 123e67015b..bc84192c0b 100644
--- a/wcfsetup/install/files/lib/acp/form/DevtoolsProjectAddForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/DevtoolsProjectAddForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\devtools\project\DevtoolsProject;
 use wcf\data\devtools\project\DevtoolsProjectAction;
diff --git a/wcfsetup/install/files/lib/acp/form/DevtoolsProjectEditForm.class.php b/wcfsetup/install/files/lib/acp/form/DevtoolsProjectEditForm.class.php
index f9d82449ac..9cf5676104 100644
--- a/wcfsetup/install/files/lib/acp/form/DevtoolsProjectEditForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/DevtoolsProjectEditForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\devtools\project\DevtoolsProject;
 use wcf\data\devtools\project\DevtoolsProjectAction;
diff --git a/wcfsetup/install/files/lib/acp/form/LabelAddForm.class.php b/wcfsetup/install/files/lib/acp/form/LabelAddForm.class.php
index cdb45cdb23..797a99b1be 100644
--- a/wcfsetup/install/files/lib/acp/form/LabelAddForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/LabelAddForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\label\group\LabelGroupList;
 use wcf\data\label\LabelAction;
diff --git a/wcfsetup/install/files/lib/acp/form/LabelEditForm.class.php b/wcfsetup/install/files/lib/acp/form/LabelEditForm.class.php
index e91a68471b..06529bdf8a 100644
--- a/wcfsetup/install/files/lib/acp/form/LabelEditForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/LabelEditForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\label\Label;
 use wcf\data\label\LabelAction;
diff --git a/wcfsetup/install/files/lib/acp/form/LabelGroupAddForm.class.php b/wcfsetup/install/files/lib/acp/form/LabelGroupAddForm.class.php
index f4feea1fa5..60692a8856 100644
--- a/wcfsetup/install/files/lib/acp/form/LabelGroupAddForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/LabelGroupAddForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\label\group\LabelGroupAction;
 use wcf\data\label\group\LabelGroupEditor;
diff --git a/wcfsetup/install/files/lib/acp/form/LabelGroupEditForm.class.php b/wcfsetup/install/files/lib/acp/form/LabelGroupEditForm.class.php
index 6300d0e5c1..4354108787 100644
--- a/wcfsetup/install/files/lib/acp/form/LabelGroupEditForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/LabelGroupEditForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\label\group\LabelGroup;
 use wcf\data\label\group\LabelGroupAction;
diff --git a/wcfsetup/install/files/lib/acp/form/LanguageAddForm.class.php b/wcfsetup/install/files/lib/acp/form/LanguageAddForm.class.php
index 616bf046bf..1f03d33269 100644
--- a/wcfsetup/install/files/lib/acp/form/LanguageAddForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/LanguageAddForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\language\Language;
 use wcf\data\language\LanguageEditor;
diff --git a/wcfsetup/install/files/lib/acp/form/LanguageEditForm.class.php b/wcfsetup/install/files/lib/acp/form/LanguageEditForm.class.php
index f2590cd853..d6ab3a628f 100644
--- a/wcfsetup/install/files/lib/acp/form/LanguageEditForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/LanguageEditForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\language\Language;
 use wcf\data\language\LanguageEditor;
diff --git a/wcfsetup/install/files/lib/acp/form/LanguageExportForm.class.php b/wcfsetup/install/files/lib/acp/form/LanguageExportForm.class.php
index a175056f88..6b2a5ec29a 100644
--- a/wcfsetup/install/files/lib/acp/form/LanguageExportForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/LanguageExportForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\language\LanguageEditor;
 use wcf\data\package\Package;
diff --git a/wcfsetup/install/files/lib/acp/form/LanguageImportForm.class.php b/wcfsetup/install/files/lib/acp/form/LanguageImportForm.class.php
index 7f85c557d5..7b249f9274 100644
--- a/wcfsetup/install/files/lib/acp/form/LanguageImportForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/LanguageImportForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\language\Language;
 use wcf\data\language\LanguageEditor;
diff --git a/wcfsetup/install/files/lib/acp/form/LanguageMultilingualismForm.class.php b/wcfsetup/install/files/lib/acp/form/LanguageMultilingualismForm.class.php
index 9d842915e8..1804904963 100644
--- a/wcfsetup/install/files/lib/acp/form/LanguageMultilingualismForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/LanguageMultilingualismForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\language\Language;
 use wcf\data\language\LanguageEditor;
diff --git a/wcfsetup/install/files/lib/acp/form/LoginForm.class.php b/wcfsetup/install/files/lib/acp/form/LoginForm.class.php
index d3cf313f53..fa8ea7d8bd 100755
--- a/wcfsetup/install/files/lib/acp/form/LoginForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/LoginForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\user\authentication\failure\UserAuthenticationFailure;
 use wcf\data\user\authentication\failure\UserAuthenticationFailureAction;
diff --git a/wcfsetup/install/files/lib/acp/form/MasterPasswordForm.class.php b/wcfsetup/install/files/lib/acp/form/MasterPasswordForm.class.php
index a4b890bf71..98092a408d 100755
--- a/wcfsetup/install/files/lib/acp/form/MasterPasswordForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/MasterPasswordForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\form\AbstractForm;
 use wcf\system\exception\UserInputException;
diff --git a/wcfsetup/install/files/lib/acp/form/MasterPasswordInitForm.class.php b/wcfsetup/install/files/lib/acp/form/MasterPasswordInitForm.class.php
index e2128e2e04..3a750f4fc3 100755
--- a/wcfsetup/install/files/lib/acp/form/MasterPasswordInitForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/MasterPasswordInitForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\form\AbstractForm;
 use wcf\system\exception\IllegalLinkException;
diff --git a/wcfsetup/install/files/lib/acp/form/MediaCategoryAddForm.class.php b/wcfsetup/install/files/lib/acp/form/MediaCategoryAddForm.class.php
index 4cf376f280..309e2cf119 100644
--- a/wcfsetup/install/files/lib/acp/form/MediaCategoryAddForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/MediaCategoryAddForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 
 /**
diff --git a/wcfsetup/install/files/lib/acp/form/MediaCategoryEditForm.class.php b/wcfsetup/install/files/lib/acp/form/MediaCategoryEditForm.class.php
index 0398dbc8de..a855fbb413 100644
--- a/wcfsetup/install/files/lib/acp/form/MediaCategoryEditForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/MediaCategoryEditForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 
 /**
diff --git a/wcfsetup/install/files/lib/acp/form/MenuAddForm.class.php b/wcfsetup/install/files/lib/acp/form/MenuAddForm.class.php
index 8b7f6e2c34..d84b77b566 100644
--- a/wcfsetup/install/files/lib/acp/form/MenuAddForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/MenuAddForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\box\Box;
 use wcf\data\menu\MenuAction;
diff --git a/wcfsetup/install/files/lib/acp/form/MenuEditForm.class.php b/wcfsetup/install/files/lib/acp/form/MenuEditForm.class.php
index 3f8f16b420..5f0b63779f 100644
--- a/wcfsetup/install/files/lib/acp/form/MenuEditForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/MenuEditForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\box\BoxAction;
 use wcf\data\menu\Menu;
diff --git a/wcfsetup/install/files/lib/acp/form/MenuItemAddForm.class.php b/wcfsetup/install/files/lib/acp/form/MenuItemAddForm.class.php
index de9aefb85b..647815d10d 100644
--- a/wcfsetup/install/files/lib/acp/form/MenuItemAddForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/MenuItemAddForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\menu\item\MenuItem;
 use wcf\data\menu\item\MenuItemAction;
diff --git a/wcfsetup/install/files/lib/acp/form/MenuItemEditForm.class.php b/wcfsetup/install/files/lib/acp/form/MenuItemEditForm.class.php
index c018bdb2c2..1cea86584d 100644
--- a/wcfsetup/install/files/lib/acp/form/MenuItemEditForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/MenuItemEditForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\menu\item\MenuItem;
 use wcf\data\menu\item\MenuItemAction;
diff --git a/wcfsetup/install/files/lib/acp/form/NoticeAddForm.class.php b/wcfsetup/install/files/lib/acp/form/NoticeAddForm.class.php
index 45db9384f3..b1e8667313 100644
--- a/wcfsetup/install/files/lib/acp/form/NoticeAddForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/NoticeAddForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\object\type\ObjectType;
 use wcf\data\object\type\ObjectTypeCache;
diff --git a/wcfsetup/install/files/lib/acp/form/NoticeEditForm.class.php b/wcfsetup/install/files/lib/acp/form/NoticeEditForm.class.php
index d4b4b5fd25..9b09fe2a35 100644
--- a/wcfsetup/install/files/lib/acp/form/NoticeEditForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/NoticeEditForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\notice\Notice;
 use wcf\data\notice\NoticeAction;
diff --git a/wcfsetup/install/files/lib/acp/form/NotificationPresetSettingsForm.class.php b/wcfsetup/install/files/lib/acp/form/NotificationPresetSettingsForm.class.php
index 1cad0994bc..9d0a64df37 100644
--- a/wcfsetup/install/files/lib/acp/form/NotificationPresetSettingsForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/NotificationPresetSettingsForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\data\user\notification\event\UserNotificationEvent;
diff --git a/wcfsetup/install/files/lib/acp/form/OptionForm.class.php b/wcfsetup/install/files/lib/acp/form/OptionForm.class.php
index 6f756e5181..0267c6dca5 100644
--- a/wcfsetup/install/files/lib/acp/form/OptionForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/OptionForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\option\category\OptionCategory;
 use wcf\data\option\OptionAction;
diff --git a/wcfsetup/install/files/lib/acp/form/PackageStartInstallForm.class.php b/wcfsetup/install/files/lib/acp/form/PackageStartInstallForm.class.php
index 812b9d4fdc..34b28320af 100755
--- a/wcfsetup/install/files/lib/acp/form/PackageStartInstallForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/PackageStartInstallForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\package\installation\queue\PackageInstallationQueue;
 use wcf\data\package\installation\queue\PackageInstallationQueueEditor;
diff --git a/wcfsetup/install/files/lib/acp/form/PackageUpdateServerAddForm.class.php b/wcfsetup/install/files/lib/acp/form/PackageUpdateServerAddForm.class.php
index f895934188..01bfd0069b 100755
--- a/wcfsetup/install/files/lib/acp/form/PackageUpdateServerAddForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/PackageUpdateServerAddForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\package\update\server\PackageUpdateServer;
 use wcf\data\package\update\server\PackageUpdateServerAction;
diff --git a/wcfsetup/install/files/lib/acp/form/PackageUpdateServerEditForm.class.php b/wcfsetup/install/files/lib/acp/form/PackageUpdateServerEditForm.class.php
index c0a6e31dff..4192071f73 100755
--- a/wcfsetup/install/files/lib/acp/form/PackageUpdateServerEditForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/PackageUpdateServerEditForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\package\update\server\PackageUpdateServer;
 use wcf\data\package\update\server\PackageUpdateServerAction;
diff --git a/wcfsetup/install/files/lib/acp/form/PageAddForm.class.php b/wcfsetup/install/files/lib/acp/form/PageAddForm.class.php
index e03f670276..678efe81c2 100644
--- a/wcfsetup/install/files/lib/acp/form/PageAddForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/PageAddForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\application\Application;
 use wcf\data\application\ApplicationList;
diff --git a/wcfsetup/install/files/lib/acp/form/PageEditForm.class.php b/wcfsetup/install/files/lib/acp/form/PageEditForm.class.php
index 6d813a8a74..82a7c547dc 100644
--- a/wcfsetup/install/files/lib/acp/form/PageEditForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/PageEditForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\page\Page;
 use wcf\data\page\PageAction;
diff --git a/wcfsetup/install/files/lib/acp/form/PaidSubscriptionAddForm.class.php b/wcfsetup/install/files/lib/acp/form/PaidSubscriptionAddForm.class.php
index cdb638cd8d..75260c39c3 100644
--- a/wcfsetup/install/files/lib/acp/form/PaidSubscriptionAddForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/PaidSubscriptionAddForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\paid\subscription\PaidSubscription;
 use wcf\data\paid\subscription\PaidSubscriptionAction;
diff --git a/wcfsetup/install/files/lib/acp/form/PaidSubscriptionEditForm.class.php b/wcfsetup/install/files/lib/acp/form/PaidSubscriptionEditForm.class.php
index 82fb7b08b6..100a961747 100644
--- a/wcfsetup/install/files/lib/acp/form/PaidSubscriptionEditForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/PaidSubscriptionEditForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\paid\subscription\PaidSubscription;
 use wcf\data\paid\subscription\PaidSubscriptionAction;
diff --git a/wcfsetup/install/files/lib/acp/form/PaidSubscriptionUserAddForm.class.php b/wcfsetup/install/files/lib/acp/form/PaidSubscriptionUserAddForm.class.php
index c36c901b16..48ae234398 100644
--- a/wcfsetup/install/files/lib/acp/form/PaidSubscriptionUserAddForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/PaidSubscriptionUserAddForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\paid\subscription\user\PaidSubscriptionUser;
 use wcf\data\paid\subscription\user\PaidSubscriptionUserAction;
diff --git a/wcfsetup/install/files/lib/acp/form/PaidSubscriptionUserEditForm.class.php b/wcfsetup/install/files/lib/acp/form/PaidSubscriptionUserEditForm.class.php
index f4e330305a..5e37420a9d 100644
--- a/wcfsetup/install/files/lib/acp/form/PaidSubscriptionUserEditForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/PaidSubscriptionUserEditForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\paid\subscription\user\PaidSubscriptionUser;
 use wcf\data\paid\subscription\user\PaidSubscriptionUserAction;
diff --git a/wcfsetup/install/files/lib/acp/form/RescueModeForm.class.php b/wcfsetup/install/files/lib/acp/form/RescueModeForm.class.php
index c1d6420389..118ffb2563 100644
--- a/wcfsetup/install/files/lib/acp/form/RescueModeForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/RescueModeForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\application\Application;
 use wcf\data\application\ApplicationAction;
diff --git a/wcfsetup/install/files/lib/acp/form/SitemapEditForm.class.php b/wcfsetup/install/files/lib/acp/form/SitemapEditForm.class.php
index ea4c5e8239..674d11596c 100755
--- a/wcfsetup/install/files/lib/acp/form/SitemapEditForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/SitemapEditForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\object\type\ObjectType;
 use wcf\data\object\type\ObjectTypeAction;
diff --git a/wcfsetup/install/files/lib/acp/form/SmileyAddForm.class.php b/wcfsetup/install/files/lib/acp/form/SmileyAddForm.class.php
index fdc86ebcf3..136a328d2d 100644
--- a/wcfsetup/install/files/lib/acp/form/SmileyAddForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/SmileyAddForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\category\Category;
 use wcf\data\category\CategoryNodeTree;
diff --git a/wcfsetup/install/files/lib/acp/form/SmileyCategoryAddForm.class.php b/wcfsetup/install/files/lib/acp/form/SmileyCategoryAddForm.class.php
index f6bccfd576..63c556d79c 100644
--- a/wcfsetup/install/files/lib/acp/form/SmileyCategoryAddForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/SmileyCategoryAddForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 
 /**
diff --git a/wcfsetup/install/files/lib/acp/form/SmileyCategoryEditForm.class.php b/wcfsetup/install/files/lib/acp/form/SmileyCategoryEditForm.class.php
index 55fc670329..5016af3a4a 100644
--- a/wcfsetup/install/files/lib/acp/form/SmileyCategoryEditForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/SmileyCategoryEditForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 
 /**
diff --git a/wcfsetup/install/files/lib/acp/form/SmileyEditForm.class.php b/wcfsetup/install/files/lib/acp/form/SmileyEditForm.class.php
index db2670fef2..2410439157 100644
--- a/wcfsetup/install/files/lib/acp/form/SmileyEditForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/SmileyEditForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\smiley\Smiley;
 use wcf\data\smiley\SmileyAction;
diff --git a/wcfsetup/install/files/lib/acp/form/StyleAddForm.class.php b/wcfsetup/install/files/lib/acp/form/StyleAddForm.class.php
index d36beb817d..9a48d55317 100644
--- a/wcfsetup/install/files/lib/acp/form/StyleAddForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/StyleAddForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\package\Package;
 use wcf\data\style\Style;
diff --git a/wcfsetup/install/files/lib/acp/form/StyleEditForm.class.php b/wcfsetup/install/files/lib/acp/form/StyleEditForm.class.php
index 507c01f5fc..c52b89d722 100644
--- a/wcfsetup/install/files/lib/acp/form/StyleEditForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/StyleEditForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\style\Style;
 use wcf\data\style\StyleAction;
diff --git a/wcfsetup/install/files/lib/acp/form/StyleExportForm.class.php b/wcfsetup/install/files/lib/acp/form/StyleExportForm.class.php
index a783ee6966..e44cdb50d9 100644
--- a/wcfsetup/install/files/lib/acp/form/StyleExportForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/StyleExportForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\style\Style;
 use wcf\data\style\StyleEditor;
diff --git a/wcfsetup/install/files/lib/acp/form/StyleGlobalValuesForm.class.php b/wcfsetup/install/files/lib/acp/form/StyleGlobalValuesForm.class.php
index 9b8a39708b..878c361d76 100644
--- a/wcfsetup/install/files/lib/acp/form/StyleGlobalValuesForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/StyleGlobalValuesForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\form\AbstractForm;
 use wcf\system\registry\RegistryHandler;
diff --git a/wcfsetup/install/files/lib/acp/form/StyleImportForm.class.php b/wcfsetup/install/files/lib/acp/form/StyleImportForm.class.php
index 0ff0e16a37..45a23d96f5 100644
--- a/wcfsetup/install/files/lib/acp/form/StyleImportForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/StyleImportForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\style\StyleEditor;
 use wcf\form\AbstractForm;
diff --git a/wcfsetup/install/files/lib/acp/form/TagAddForm.class.php b/wcfsetup/install/files/lib/acp/form/TagAddForm.class.php
index 7808f8799c..a0fea4f402 100644
--- a/wcfsetup/install/files/lib/acp/form/TagAddForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/TagAddForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\tag\Tag;
 use wcf\data\tag\TagAction;
diff --git a/wcfsetup/install/files/lib/acp/form/TagEditForm.class.php b/wcfsetup/install/files/lib/acp/form/TagEditForm.class.php
index 7d16ff91b4..aba51b718d 100644
--- a/wcfsetup/install/files/lib/acp/form/TagEditForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/TagEditForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\tag\Tag;
 use wcf\data\tag\TagAction;
diff --git a/wcfsetup/install/files/lib/acp/form/TemplateAddForm.class.php b/wcfsetup/install/files/lib/acp/form/TemplateAddForm.class.php
index 820c142101..3636c391b4 100644
--- a/wcfsetup/install/files/lib/acp/form/TemplateAddForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/TemplateAddForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\package\Package;
 use wcf\data\package\PackageCache;
diff --git a/wcfsetup/install/files/lib/acp/form/TemplateEditForm.class.php b/wcfsetup/install/files/lib/acp/form/TemplateEditForm.class.php
index 8aca016101..b65369a5b4 100644
--- a/wcfsetup/install/files/lib/acp/form/TemplateEditForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/TemplateEditForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\template\Template;
 use wcf\data\template\TemplateAction;
diff --git a/wcfsetup/install/files/lib/acp/form/TemplateGroupAddForm.class.php b/wcfsetup/install/files/lib/acp/form/TemplateGroupAddForm.class.php
index 6073e6a7a9..396ec0dc4a 100644
--- a/wcfsetup/install/files/lib/acp/form/TemplateGroupAddForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/TemplateGroupAddForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\template\group\TemplateGroup;
 use wcf\data\template\group\TemplateGroupAction;
diff --git a/wcfsetup/install/files/lib/acp/form/TemplateGroupEditForm.class.php b/wcfsetup/install/files/lib/acp/form/TemplateGroupEditForm.class.php
index 17cb98628e..b8efa0218a 100644
--- a/wcfsetup/install/files/lib/acp/form/TemplateGroupEditForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/TemplateGroupEditForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\template\group\TemplateGroup;
 use wcf\data\template\group\TemplateGroupAction;
diff --git a/wcfsetup/install/files/lib/acp/form/TrophyAddForm.class.php b/wcfsetup/install/files/lib/acp/form/TrophyAddForm.class.php
index 918c63526a..aa8fa17af4 100644
--- a/wcfsetup/install/files/lib/acp/form/TrophyAddForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/TrophyAddForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\category\Category;
 use wcf\data\object\type\ObjectType;
diff --git a/wcfsetup/install/files/lib/acp/form/TrophyCategoryAddForm.class.php b/wcfsetup/install/files/lib/acp/form/TrophyCategoryAddForm.class.php
index d722e642b9..d67e0bfb72 100644
--- a/wcfsetup/install/files/lib/acp/form/TrophyCategoryAddForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/TrophyCategoryAddForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 
 /**
diff --git a/wcfsetup/install/files/lib/acp/form/TrophyCategoryEditForm.class.php b/wcfsetup/install/files/lib/acp/form/TrophyCategoryEditForm.class.php
index 2f9229e6df..1c8687abfd 100644
--- a/wcfsetup/install/files/lib/acp/form/TrophyCategoryEditForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/TrophyCategoryEditForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 
 /**
diff --git a/wcfsetup/install/files/lib/acp/form/TrophyEditForm.class.php b/wcfsetup/install/files/lib/acp/form/TrophyEditForm.class.php
index 3aa66ce89d..cc75811e21 100644
--- a/wcfsetup/install/files/lib/acp/form/TrophyEditForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/TrophyEditForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\trophy\Trophy;
 use wcf\data\trophy\TrophyAction;
diff --git a/wcfsetup/install/files/lib/acp/form/UserActivityPointOptionForm.class.php b/wcfsetup/install/files/lib/acp/form/UserActivityPointOptionForm.class.php
index 7b771bd055..c43e3a953e 100644
--- a/wcfsetup/install/files/lib/acp/form/UserActivityPointOptionForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/UserActivityPointOptionForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\object\type\ObjectType;
 use wcf\data\object\type\ObjectTypeCache;
diff --git a/wcfsetup/install/files/lib/acp/form/UserAddForm.class.php b/wcfsetup/install/files/lib/acp/form/UserAddForm.class.php
index 73c24ee25e..6ae39b44c0 100644
--- a/wcfsetup/install/files/lib/acp/form/UserAddForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/UserAddForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\user\group\UserGroup;
 use wcf\data\user\UserAction;
diff --git a/wcfsetup/install/files/lib/acp/form/UserAssignToGroupForm.class.php b/wcfsetup/install/files/lib/acp/form/UserAssignToGroupForm.class.php
index 2cddf53d55..ba87e72acb 100755
--- a/wcfsetup/install/files/lib/acp/form/UserAssignToGroupForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/UserAssignToGroupForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\user\group\UserGroup;
 use wcf\data\user\User;
diff --git a/wcfsetup/install/files/lib/acp/form/UserBulkProcessingForm.class.php b/wcfsetup/install/files/lib/acp/form/UserBulkProcessingForm.class.php
index ef0a058b79..640ff2b7ea 100644
--- a/wcfsetup/install/files/lib/acp/form/UserBulkProcessingForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/UserBulkProcessingForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 
 /**
diff --git a/wcfsetup/install/files/lib/acp/form/UserContentRevertChangesForm.class.php b/wcfsetup/install/files/lib/acp/form/UserContentRevertChangesForm.class.php
index 821891ef2a..6548e0da02 100644
--- a/wcfsetup/install/files/lib/acp/form/UserContentRevertChangesForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/UserContentRevertChangesForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\user\User;
 use wcf\form\AbstractForm;
diff --git a/wcfsetup/install/files/lib/acp/form/UserEditForm.class.php b/wcfsetup/install/files/lib/acp/form/UserEditForm.class.php
index 5ec5454e36..c6ea0be490 100755
--- a/wcfsetup/install/files/lib/acp/form/UserEditForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/UserEditForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\user\avatar\Gravatar;
 use wcf\data\user\avatar\UserAvatar;
diff --git a/wcfsetup/install/files/lib/acp/form/UserEmailAddressExportForm.class.php b/wcfsetup/install/files/lib/acp/form/UserEmailAddressExportForm.class.php
index 59ce6ce1bb..db0a9942c0 100755
--- a/wcfsetup/install/files/lib/acp/form/UserEmailAddressExportForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/UserEmailAddressExportForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\user\User;
 use wcf\form\AbstractForm;
diff --git a/wcfsetup/install/files/lib/acp/form/UserGroupAddForm.class.php b/wcfsetup/install/files/lib/acp/form/UserGroupAddForm.class.php
index df9fc89b7e..e35528e613 100755
--- a/wcfsetup/install/files/lib/acp/form/UserGroupAddForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/UserGroupAddForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\user\group\UserGroupAction;
 use wcf\data\user\group\UserGroupEditor;
diff --git a/wcfsetup/install/files/lib/acp/form/UserGroupAssignmentAddForm.class.php b/wcfsetup/install/files/lib/acp/form/UserGroupAssignmentAddForm.class.php
index 461b8cae53..1ee348a6b2 100644
--- a/wcfsetup/install/files/lib/acp/form/UserGroupAssignmentAddForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/UserGroupAssignmentAddForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\object\type\ObjectType;
 use wcf\data\user\group\assignment\UserGroupAssignmentAction;
diff --git a/wcfsetup/install/files/lib/acp/form/UserGroupAssignmentEditForm.class.php b/wcfsetup/install/files/lib/acp/form/UserGroupAssignmentEditForm.class.php
index 24fd5c75d2..97121cd6d9 100644
--- a/wcfsetup/install/files/lib/acp/form/UserGroupAssignmentEditForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/UserGroupAssignmentEditForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\user\group\assignment\UserGroupAssignment;
 use wcf\data\user\group\assignment\UserGroupAssignmentAction;
diff --git a/wcfsetup/install/files/lib/acp/form/UserGroupEditForm.class.php b/wcfsetup/install/files/lib/acp/form/UserGroupEditForm.class.php
index 8a04badc55..092486daea 100755
--- a/wcfsetup/install/files/lib/acp/form/UserGroupEditForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/UserGroupEditForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\user\group\UserGroup;
 use wcf\data\user\group\UserGroupAction;
diff --git a/wcfsetup/install/files/lib/acp/form/UserGroupOptionForm.class.php b/wcfsetup/install/files/lib/acp/form/UserGroupOptionForm.class.php
index 725d4c7f6c..5304c51dc3 100644
--- a/wcfsetup/install/files/lib/acp/form/UserGroupOptionForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/UserGroupOptionForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\user\group\option\category\UserGroupOptionCategory;
 use wcf\data\user\group\option\category\UserGroupOptionCategoryList;
diff --git a/wcfsetup/install/files/lib/acp/form/UserMailForm.class.php b/wcfsetup/install/files/lib/acp/form/UserMailForm.class.php
index 4f873db724..ad6333d55a 100755
--- a/wcfsetup/install/files/lib/acp/form/UserMailForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/UserMailForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\user\group\UserGroup;
 use wcf\data\user\UserList;
diff --git a/wcfsetup/install/files/lib/acp/form/UserMergeForm.class.php b/wcfsetup/install/files/lib/acp/form/UserMergeForm.class.php
index 0d1a33337f..cc9487ee2b 100644
--- a/wcfsetup/install/files/lib/acp/form/UserMergeForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/UserMergeForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\data\user\User;
diff --git a/wcfsetup/install/files/lib/acp/form/UserOptionAddForm.class.php b/wcfsetup/install/files/lib/acp/form/UserOptionAddForm.class.php
index e13f7d7787..43e53bfec6 100644
--- a/wcfsetup/install/files/lib/acp/form/UserOptionAddForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/UserOptionAddForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\user\option\category\UserOptionCategory;
 use wcf\data\user\option\category\UserOptionCategoryList;
diff --git a/wcfsetup/install/files/lib/acp/form/UserOptionCategoryAddForm.class.php b/wcfsetup/install/files/lib/acp/form/UserOptionCategoryAddForm.class.php
index 3d2b83b1f3..53c43a74a0 100644
--- a/wcfsetup/install/files/lib/acp/form/UserOptionCategoryAddForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/UserOptionCategoryAddForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\user\option\category\UserOptionCategoryAction;
 use wcf\data\user\option\category\UserOptionCategoryEditor;
diff --git a/wcfsetup/install/files/lib/acp/form/UserOptionCategoryEditForm.class.php b/wcfsetup/install/files/lib/acp/form/UserOptionCategoryEditForm.class.php
index d0c52fc7e0..a6ed3f33e8 100644
--- a/wcfsetup/install/files/lib/acp/form/UserOptionCategoryEditForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/UserOptionCategoryEditForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\user\option\category\UserOptionCategory;
 use wcf\data\user\option\category\UserOptionCategoryAction;
diff --git a/wcfsetup/install/files/lib/acp/form/UserOptionEditForm.class.php b/wcfsetup/install/files/lib/acp/form/UserOptionEditForm.class.php
index 31d71baa27..ff58f132b1 100644
--- a/wcfsetup/install/files/lib/acp/form/UserOptionEditForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/UserOptionEditForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\user\option\UserOption;
 use wcf\data\user\option\UserOptionAction;
diff --git a/wcfsetup/install/files/lib/acp/form/UserOptionListForm.class.php b/wcfsetup/install/files/lib/acp/form/UserOptionListForm.class.php
index 64d30836f5..1b421b35c5 100644
--- a/wcfsetup/install/files/lib/acp/form/UserOptionListForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/UserOptionListForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\user\group\UserGroup;
 use wcf\system\language\LanguageFactory;
diff --git a/wcfsetup/install/files/lib/acp/form/UserOptionSetDefaultsForm.class.php b/wcfsetup/install/files/lib/acp/form/UserOptionSetDefaultsForm.class.php
index 2142cddb55..98c0624fdb 100644
--- a/wcfsetup/install/files/lib/acp/form/UserOptionSetDefaultsForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/UserOptionSetDefaultsForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\form\AbstractForm;
 use wcf\system\cache\builder\UserOptionCacheBuilder;
diff --git a/wcfsetup/install/files/lib/acp/form/UserRankAddForm.class.php b/wcfsetup/install/files/lib/acp/form/UserRankAddForm.class.php
index 9cedb016b3..3f6fb87e85 100644
--- a/wcfsetup/install/files/lib/acp/form/UserRankAddForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/UserRankAddForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\user\group\UserGroup;
 use wcf\data\user\rank\UserRankAction;
diff --git a/wcfsetup/install/files/lib/acp/form/UserRankEditForm.class.php b/wcfsetup/install/files/lib/acp/form/UserRankEditForm.class.php
index 1ccea579aa..c6f35c4215 100644
--- a/wcfsetup/install/files/lib/acp/form/UserRankEditForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/UserRankEditForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\user\rank\UserRank;
 use wcf\data\user\rank\UserRankAction;
diff --git a/wcfsetup/install/files/lib/acp/form/UserSearchForm.class.php b/wcfsetup/install/files/lib/acp/form/UserSearchForm.class.php
index 2c641a0f15..132ae0c3f8 100755
--- a/wcfsetup/install/files/lib/acp/form/UserSearchForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/UserSearchForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\condition\Condition;
 use wcf\data\object\type\ObjectType;
diff --git a/wcfsetup/install/files/lib/acp/form/UserTrophyAddForm.class.php b/wcfsetup/install/files/lib/acp/form/UserTrophyAddForm.class.php
index 45c4e6ec27..85c405779b 100644
--- a/wcfsetup/install/files/lib/acp/form/UserTrophyAddForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/UserTrophyAddForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\trophy\category\TrophyCategoryCache;
 use wcf\data\trophy\Trophy;
diff --git a/wcfsetup/install/files/lib/acp/form/UserTrophyEditForm.class.php b/wcfsetup/install/files/lib/acp/form/UserTrophyEditForm.class.php
index 8c9d1071ad..f9b9557c17 100644
--- a/wcfsetup/install/files/lib/acp/form/UserTrophyEditForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/UserTrophyEditForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\form;
 use wcf\data\user\trophy\UserTrophy;
 use wcf\data\user\trophy\UserTrophyAction;
diff --git a/wcfsetup/install/files/lib/acp/page/ACPSessionLogListPage.class.php b/wcfsetup/install/files/lib/acp/page/ACPSessionLogListPage.class.php
index d8e7ab69b1..adcc5c9970 100755
--- a/wcfsetup/install/files/lib/acp/page/ACPSessionLogListPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/ACPSessionLogListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\acp\session\log\ACPSessionLogList;
 use wcf\page\SortablePage;
diff --git a/wcfsetup/install/files/lib/acp/page/ACPSessionLogPage.class.php b/wcfsetup/install/files/lib/acp/page/ACPSessionLogPage.class.php
index a44f22d67a..32c55d28f8 100755
--- a/wcfsetup/install/files/lib/acp/page/ACPSessionLogPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/ACPSessionLogPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\acp\session\access\log\ACPSessionAccessLogList;
 use wcf\data\acp\session\log\ACPSessionLog;
diff --git a/wcfsetup/install/files/lib/acp/page/AbstractCategoryListPage.class.php b/wcfsetup/install/files/lib/acp/page/AbstractCategoryListPage.class.php
index 431e3586dc..cf9e184826 100644
--- a/wcfsetup/install/files/lib/acp/page/AbstractCategoryListPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/AbstractCategoryListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\category\CategoryNodeTree;
 use wcf\data\object\type\ObjectType;
diff --git a/wcfsetup/install/files/lib/acp/page/AdListPage.class.php b/wcfsetup/install/files/lib/acp/page/AdListPage.class.php
index b721bb2635..6f05dd84b4 100644
--- a/wcfsetup/install/files/lib/acp/page/AdListPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/AdListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\ad\AdList;
 use wcf\page\MultipleLinkPage;
diff --git a/wcfsetup/install/files/lib/acp/page/ApplicationManagementPage.class.php b/wcfsetup/install/files/lib/acp/page/ApplicationManagementPage.class.php
index 43f9fb3233..b1e3703cc9 100644
--- a/wcfsetup/install/files/lib/acp/page/ApplicationManagementPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/ApplicationManagementPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\application\ViewableApplicationList;
 use wcf\data\page\PageList;
diff --git a/wcfsetup/install/files/lib/acp/page/ArticleCategoryListPage.class.php b/wcfsetup/install/files/lib/acp/page/ArticleCategoryListPage.class.php
index fcbe4d000d..e0b4987ff7 100644
--- a/wcfsetup/install/files/lib/acp/page/ArticleCategoryListPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/ArticleCategoryListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 
 /**
diff --git a/wcfsetup/install/files/lib/acp/page/ArticleListPage.class.php b/wcfsetup/install/files/lib/acp/page/ArticleListPage.class.php
index 66a5f5bdaa..5dc7b4c19f 100644
--- a/wcfsetup/install/files/lib/acp/page/ArticleListPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/ArticleListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\article\Article;
 use wcf\data\article\ArticleList;
diff --git a/wcfsetup/install/files/lib/acp/page/AttachmentListPage.class.php b/wcfsetup/install/files/lib/acp/page/AttachmentListPage.class.php
index 64003135a4..c21185bbf5 100644
--- a/wcfsetup/install/files/lib/acp/page/AttachmentListPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/AttachmentListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\attachment\AdministrativeAttachmentList;
 use wcf\data\object\type\ObjectTypeCache;
diff --git a/wcfsetup/install/files/lib/acp/page/AttachmentPage.class.php b/wcfsetup/install/files/lib/acp/page/AttachmentPage.class.php
index e025735354..bec1b80314 100644
--- a/wcfsetup/install/files/lib/acp/page/AttachmentPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/AttachmentPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\page\AbstractPage;
diff --git a/wcfsetup/install/files/lib/acp/page/BBCodeListPage.class.php b/wcfsetup/install/files/lib/acp/page/BBCodeListPage.class.php
index 5bc82e0eb6..05d0e40f66 100644
--- a/wcfsetup/install/files/lib/acp/page/BBCodeListPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/BBCodeListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\bbcode\BBCodeList;
 use wcf\page\SortablePage;
diff --git a/wcfsetup/install/files/lib/acp/page/BBCodeMediaProviderListPage.class.php b/wcfsetup/install/files/lib/acp/page/BBCodeMediaProviderListPage.class.php
index baa5134645..7f5d2263e6 100644
--- a/wcfsetup/install/files/lib/acp/page/BBCodeMediaProviderListPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/BBCodeMediaProviderListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\bbcode\media\provider\BBCodeMediaProviderList;
 use wcf\page\SortablePage;
diff --git a/wcfsetup/install/files/lib/acp/page/BoxListPage.class.php b/wcfsetup/install/files/lib/acp/page/BoxListPage.class.php
index 13b1aa3d6d..d6c6d53e6f 100644
--- a/wcfsetup/install/files/lib/acp/page/BoxListPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/BoxListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\box\Box;
 use wcf\data\box\BoxList;
diff --git a/wcfsetup/install/files/lib/acp/page/CacheListPage.class.php b/wcfsetup/install/files/lib/acp/page/CacheListPage.class.php
index 8616ae5f14..c35c414016 100755
--- a/wcfsetup/install/files/lib/acp/page/CacheListPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/CacheListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\page\AbstractPage;
 use wcf\system\cache\CacheHandler;
diff --git a/wcfsetup/install/files/lib/acp/page/CaptchaQuestionListPage.class.php b/wcfsetup/install/files/lib/acp/page/CaptchaQuestionListPage.class.php
index a0a77bb903..b9287b640b 100644
--- a/wcfsetup/install/files/lib/acp/page/CaptchaQuestionListPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/CaptchaQuestionListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\captcha\question\CaptchaQuestionList;
 use wcf\page\MultipleLinkPage;
diff --git a/wcfsetup/install/files/lib/acp/page/ContactSettingsPage.class.php b/wcfsetup/install/files/lib/acp/page/ContactSettingsPage.class.php
index cb146a84d3..cd9972c7ff 100644
--- a/wcfsetup/install/files/lib/acp/page/ContactSettingsPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/ContactSettingsPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\contact\option\ContactOptionList;
 use wcf\data\contact\recipient\ContactRecipientList;
diff --git a/wcfsetup/install/files/lib/acp/page/CronjobListPage.class.php b/wcfsetup/install/files/lib/acp/page/CronjobListPage.class.php
index 050c144c37..667469fe83 100755
--- a/wcfsetup/install/files/lib/acp/page/CronjobListPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/CronjobListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\cronjob\CronjobList;
 use wcf\page\SortablePage;
diff --git a/wcfsetup/install/files/lib/acp/page/CronjobLogListPage.class.php b/wcfsetup/install/files/lib/acp/page/CronjobLogListPage.class.php
index de57816d0e..5179034274 100755
--- a/wcfsetup/install/files/lib/acp/page/CronjobLogListPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/CronjobLogListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\cronjob\log\CronjobLogList;
 use wcf\page\SortablePage;
diff --git a/wcfsetup/install/files/lib/acp/page/DevtoolsNotificationTestPage.class.php b/wcfsetup/install/files/lib/acp/page/DevtoolsNotificationTestPage.class.php
index a70a0328b7..1098f74567 100644
--- a/wcfsetup/install/files/lib/acp/page/DevtoolsNotificationTestPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/DevtoolsNotificationTestPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\page\AbstractPage;
diff --git a/wcfsetup/install/files/lib/acp/page/DevtoolsProjectListPage.class.php b/wcfsetup/install/files/lib/acp/page/DevtoolsProjectListPage.class.php
index c9c69821ba..bf6af93a83 100644
--- a/wcfsetup/install/files/lib/acp/page/DevtoolsProjectListPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/DevtoolsProjectListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\devtools\project\DevtoolsProjectList;
 use wcf\page\MultipleLinkPage;
diff --git a/wcfsetup/install/files/lib/acp/page/DevtoolsProjectSyncPage.class.php b/wcfsetup/install/files/lib/acp/page/DevtoolsProjectSyncPage.class.php
index ffef8dc35c..37925787b2 100644
--- a/wcfsetup/install/files/lib/acp/page/DevtoolsProjectSyncPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/DevtoolsProjectSyncPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\devtools\project\DevtoolsProject;
 use wcf\page\AbstractPage;
diff --git a/wcfsetup/install/files/lib/acp/page/ExceptionLogViewPage.class.php b/wcfsetup/install/files/lib/acp/page/ExceptionLogViewPage.class.php
index 4f4b559546..0cf8cde880 100644
--- a/wcfsetup/install/files/lib/acp/page/ExceptionLogViewPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/ExceptionLogViewPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\page\AbstractPage;
 use wcf\page\MultipleLinkPage;
diff --git a/wcfsetup/install/files/lib/acp/page/IndexPage.class.php b/wcfsetup/install/files/lib/acp/page/IndexPage.class.php
index 596f816bfc..8019c84bcf 100755
--- a/wcfsetup/install/files/lib/acp/page/IndexPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/IndexPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\page\AbstractPage;
 use wcf\system\application\ApplicationHandler;
diff --git a/wcfsetup/install/files/lib/acp/page/LabelGroupListPage.class.php b/wcfsetup/install/files/lib/acp/page/LabelGroupListPage.class.php
index 14e052d9e4..142601dc37 100644
--- a/wcfsetup/install/files/lib/acp/page/LabelGroupListPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/LabelGroupListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\label\group\LabelGroupList;
 use wcf\page\SortablePage;
diff --git a/wcfsetup/install/files/lib/acp/page/LabelListPage.class.php b/wcfsetup/install/files/lib/acp/page/LabelListPage.class.php
index 9eec0a3a09..bd5d30e7cb 100644
--- a/wcfsetup/install/files/lib/acp/page/LabelListPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/LabelListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\label\group\LabelGroup;
 use wcf\data\label\group\LabelGroupList;
diff --git a/wcfsetup/install/files/lib/acp/page/LanguageItemListPage.class.php b/wcfsetup/install/files/lib/acp/page/LanguageItemListPage.class.php
index 39c5ac4ca6..3e04ec3110 100644
--- a/wcfsetup/install/files/lib/acp/page/LanguageItemListPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/LanguageItemListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\language\category\LanguageCategoryList;
 use wcf\data\language\item\LanguageItemList;
diff --git a/wcfsetup/install/files/lib/acp/page/LanguageListPage.class.php b/wcfsetup/install/files/lib/acp/page/LanguageListPage.class.php
index 12ecacb4a1..1d1c119245 100644
--- a/wcfsetup/install/files/lib/acp/page/LanguageListPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/LanguageListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\language\LanguageList;
 use wcf\page\SortablePage;
diff --git a/wcfsetup/install/files/lib/acp/page/MediaCategoryListPage.class.php b/wcfsetup/install/files/lib/acp/page/MediaCategoryListPage.class.php
index 51e8c6b14b..d2f7b4f9af 100644
--- a/wcfsetup/install/files/lib/acp/page/MediaCategoryListPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/MediaCategoryListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 
 /**
diff --git a/wcfsetup/install/files/lib/acp/page/MediaListPage.class.php b/wcfsetup/install/files/lib/acp/page/MediaListPage.class.php
index 5815a71ecc..ac4aeaa647 100644
--- a/wcfsetup/install/files/lib/acp/page/MediaListPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/MediaListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\category\CategoryNodeTree;
 use wcf\data\media\ViewableMediaList;
diff --git a/wcfsetup/install/files/lib/acp/page/MediaPage.class.php b/wcfsetup/install/files/lib/acp/page/MediaPage.class.php
index e2c2c18db8..cbd4420c62 100644
--- a/wcfsetup/install/files/lib/acp/page/MediaPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/MediaPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 
 /**
diff --git a/wcfsetup/install/files/lib/acp/page/MenuItemListPage.class.php b/wcfsetup/install/files/lib/acp/page/MenuItemListPage.class.php
index e1eee24d2a..635d182978 100644
--- a/wcfsetup/install/files/lib/acp/page/MenuItemListPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/MenuItemListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\menu\item\MenuItemNodeTree;
 use wcf\data\menu\Menu;
diff --git a/wcfsetup/install/files/lib/acp/page/MenuListPage.class.php b/wcfsetup/install/files/lib/acp/page/MenuListPage.class.php
index 419579666c..d9a1cce98c 100644
--- a/wcfsetup/install/files/lib/acp/page/MenuListPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/MenuListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\menu\MenuList;
 use wcf\page\SortablePage;
diff --git a/wcfsetup/install/files/lib/acp/page/NoticeListPage.class.php b/wcfsetup/install/files/lib/acp/page/NoticeListPage.class.php
index efc583c1fd..ce0d0b346d 100644
--- a/wcfsetup/install/files/lib/acp/page/NoticeListPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/NoticeListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\notice\NoticeList;
 use wcf\page\SortablePage;
diff --git a/wcfsetup/install/files/lib/acp/page/PHPInfoPage.class.php b/wcfsetup/install/files/lib/acp/page/PHPInfoPage.class.php
index 677339dafd..766f4e0984 100644
--- a/wcfsetup/install/files/lib/acp/page/PHPInfoPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/PHPInfoPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\page\AbstractPage;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/acp/page/PackageInstallationConfirmPage.class.php b/wcfsetup/install/files/lib/acp/page/PackageInstallationConfirmPage.class.php
index ff43a72503..3856307328 100644
--- a/wcfsetup/install/files/lib/acp/page/PackageInstallationConfirmPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/PackageInstallationConfirmPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\package\installation\queue\PackageInstallationQueue;
 use wcf\page\AbstractPage;
diff --git a/wcfsetup/install/files/lib/acp/page/PackageListPage.class.php b/wcfsetup/install/files/lib/acp/page/PackageListPage.class.php
index b9e4b4820c..a0929dfc1d 100644
--- a/wcfsetup/install/files/lib/acp/page/PackageListPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/PackageListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\package\PackageList;
 use wcf\page\SortablePage;
diff --git a/wcfsetup/install/files/lib/acp/page/PackagePage.class.php b/wcfsetup/install/files/lib/acp/page/PackagePage.class.php
index 5ce1e0d64a..bed674700b 100755
--- a/wcfsetup/install/files/lib/acp/page/PackagePage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/PackagePage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\package\Package;
 use wcf\page\AbstractPage;
diff --git a/wcfsetup/install/files/lib/acp/page/PackageUpdatePage.class.php b/wcfsetup/install/files/lib/acp/page/PackageUpdatePage.class.php
index 7dce682d22..af7f4c01d4 100644
--- a/wcfsetup/install/files/lib/acp/page/PackageUpdatePage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/PackageUpdatePage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\page\AbstractPage;
 use wcf\system\package\PackageUpdateDispatcher;
diff --git a/wcfsetup/install/files/lib/acp/page/PackageUpdateServerListPage.class.php b/wcfsetup/install/files/lib/acp/page/PackageUpdateServerListPage.class.php
index 4134fefd8d..7214154eed 100755
--- a/wcfsetup/install/files/lib/acp/page/PackageUpdateServerListPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/PackageUpdateServerListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\package\update\server\PackageUpdateServerList;
 use wcf\page\SortablePage;
diff --git a/wcfsetup/install/files/lib/acp/page/PageBoxOrderPage.class.php b/wcfsetup/install/files/lib/acp/page/PageBoxOrderPage.class.php
index cee3c8b91e..3a49d0203b 100644
--- a/wcfsetup/install/files/lib/acp/page/PageBoxOrderPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/PageBoxOrderPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\box\Box;
 use wcf\data\page\Page;
diff --git a/wcfsetup/install/files/lib/acp/page/PageListPage.class.php b/wcfsetup/install/files/lib/acp/page/PageListPage.class.php
index 1957431780..aa14bb40f3 100644
--- a/wcfsetup/install/files/lib/acp/page/PageListPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/PageListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\application\Application;
 use wcf\data\application\ApplicationList;
diff --git a/wcfsetup/install/files/lib/acp/page/PaidSubscriptionListPage.class.php b/wcfsetup/install/files/lib/acp/page/PaidSubscriptionListPage.class.php
index 75cc7edb3d..e7ac30e820 100644
--- a/wcfsetup/install/files/lib/acp/page/PaidSubscriptionListPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/PaidSubscriptionListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\paid\subscription\PaidSubscriptionList;
 use wcf\page\SortablePage;
diff --git a/wcfsetup/install/files/lib/acp/page/PaidSubscriptionTransactionLogListPage.class.php b/wcfsetup/install/files/lib/acp/page/PaidSubscriptionTransactionLogListPage.class.php
index 4d8653a976..4fe15eeda4 100644
--- a/wcfsetup/install/files/lib/acp/page/PaidSubscriptionTransactionLogListPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/PaidSubscriptionTransactionLogListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\paid\subscription\transaction\log\PaidSubscriptionTransactionLogList;
 use wcf\page\SortablePage;
diff --git a/wcfsetup/install/files/lib/acp/page/PaidSubscriptionTransactionLogPage.class.php b/wcfsetup/install/files/lib/acp/page/PaidSubscriptionTransactionLogPage.class.php
index 5c64eb0b74..a9305ced4e 100644
--- a/wcfsetup/install/files/lib/acp/page/PaidSubscriptionTransactionLogPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/PaidSubscriptionTransactionLogPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\paid\subscription\transaction\log\PaidSubscriptionTransactionLog;
 use wcf\page\AbstractPage;
diff --git a/wcfsetup/install/files/lib/acp/page/PaidSubscriptionUserListPage.class.php b/wcfsetup/install/files/lib/acp/page/PaidSubscriptionUserListPage.class.php
index a828020047..a263c9ecfe 100644
--- a/wcfsetup/install/files/lib/acp/page/PaidSubscriptionUserListPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/PaidSubscriptionUserListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\paid\subscription\user\PaidSubscriptionUserList;
 use wcf\page\SortablePage;
diff --git a/wcfsetup/install/files/lib/acp/page/PluginStorePurchasedItemsPage.class.php b/wcfsetup/install/files/lib/acp/page/PluginStorePurchasedItemsPage.class.php
index 59c7f58592..66e942dfd1 100644
--- a/wcfsetup/install/files/lib/acp/page/PluginStorePurchasedItemsPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/PluginStorePurchasedItemsPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\package\update\server\PackageUpdateServer;
 use wcf\data\package\update\server\PackageUpdateServerList;
diff --git a/wcfsetup/install/files/lib/acp/page/RebuildDataPage.class.php b/wcfsetup/install/files/lib/acp/page/RebuildDataPage.class.php
index 8c58febc03..cb75614d8e 100644
--- a/wcfsetup/install/files/lib/acp/page/RebuildDataPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/RebuildDataPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\page\AbstractPage;
diff --git a/wcfsetup/install/files/lib/acp/page/SitemapListPage.class.php b/wcfsetup/install/files/lib/acp/page/SitemapListPage.class.php
index 117c57ec94..fdf70363b1 100755
--- a/wcfsetup/install/files/lib/acp/page/SitemapListPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/SitemapListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\page\AbstractPage;
diff --git a/wcfsetup/install/files/lib/acp/page/SmileyCategoryListPage.class.php b/wcfsetup/install/files/lib/acp/page/SmileyCategoryListPage.class.php
index 4da8a0906b..91f5a95a3f 100644
--- a/wcfsetup/install/files/lib/acp/page/SmileyCategoryListPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/SmileyCategoryListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 
 /**
diff --git a/wcfsetup/install/files/lib/acp/page/SmileyListPage.class.php b/wcfsetup/install/files/lib/acp/page/SmileyListPage.class.php
index 271d239e8d..382794afb5 100644
--- a/wcfsetup/install/files/lib/acp/page/SmileyListPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/SmileyListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\category\Category;
 use wcf\data\smiley\category\SmileyCategory;
diff --git a/wcfsetup/install/files/lib/acp/page/StatPage.class.php b/wcfsetup/install/files/lib/acp/page/StatPage.class.php
index d9d9ca33bf..238261d49f 100644
--- a/wcfsetup/install/files/lib/acp/page/StatPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/StatPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\page\AbstractPage;
diff --git a/wcfsetup/install/files/lib/acp/page/StyleListPage.class.php b/wcfsetup/install/files/lib/acp/page/StyleListPage.class.php
index 2c385c1872..d00203a82f 100644
--- a/wcfsetup/install/files/lib/acp/page/StyleListPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/StyleListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\style\StyleList;
 use wcf\page\MultipleLinkPage;
diff --git a/wcfsetup/install/files/lib/acp/page/TagListPage.class.php b/wcfsetup/install/files/lib/acp/page/TagListPage.class.php
index ce2a5fd1dd..32e52510e9 100644
--- a/wcfsetup/install/files/lib/acp/page/TagListPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/TagListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\tag\TagList;
 use wcf\page\SortablePage;
diff --git a/wcfsetup/install/files/lib/acp/page/TemplateDiffPage.class.php b/wcfsetup/install/files/lib/acp/page/TemplateDiffPage.class.php
index 5d72848190..be0f24880e 100644
--- a/wcfsetup/install/files/lib/acp/page/TemplateDiffPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/TemplateDiffPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\template\group\TemplateGroupList;
 use wcf\data\template\Template;
diff --git a/wcfsetup/install/files/lib/acp/page/TemplateGroupListPage.class.php b/wcfsetup/install/files/lib/acp/page/TemplateGroupListPage.class.php
index 8bb7a7ec1e..49f6494881 100644
--- a/wcfsetup/install/files/lib/acp/page/TemplateGroupListPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/TemplateGroupListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\template\group\TemplateGroupList;
 use wcf\page\SortablePage;
diff --git a/wcfsetup/install/files/lib/acp/page/TemplateListPage.class.php b/wcfsetup/install/files/lib/acp/page/TemplateListPage.class.php
index 3d5ca91dd1..b3125bb6b1 100644
--- a/wcfsetup/install/files/lib/acp/page/TemplateListPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/TemplateListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\package\Package;
 use wcf\data\package\PackageCache;
diff --git a/wcfsetup/install/files/lib/acp/page/TrophyCategoryListPage.class.php b/wcfsetup/install/files/lib/acp/page/TrophyCategoryListPage.class.php
index f8fbef7dda..bdc37e7395 100644
--- a/wcfsetup/install/files/lib/acp/page/TrophyCategoryListPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/TrophyCategoryListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 
 /**
diff --git a/wcfsetup/install/files/lib/acp/page/TrophyListPage.class.php b/wcfsetup/install/files/lib/acp/page/TrophyListPage.class.php
index 15e0ae3373..17bc43e8c8 100644
--- a/wcfsetup/install/files/lib/acp/page/TrophyListPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/TrophyListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\trophy\TrophyList;
 use wcf\page\SortablePage;
diff --git a/wcfsetup/install/files/lib/acp/page/UserAuthenticationFailureListPage.class.php b/wcfsetup/install/files/lib/acp/page/UserAuthenticationFailureListPage.class.php
index b474123abf..21a242d5d9 100644
--- a/wcfsetup/install/files/lib/acp/page/UserAuthenticationFailureListPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/UserAuthenticationFailureListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\user\authentication\failure\UserAuthenticationFailureList;
 use wcf\page\SortablePage;
diff --git a/wcfsetup/install/files/lib/acp/page/UserGroupAssignmentListPage.class.php b/wcfsetup/install/files/lib/acp/page/UserGroupAssignmentListPage.class.php
index 552d323b63..971b61edeb 100644
--- a/wcfsetup/install/files/lib/acp/page/UserGroupAssignmentListPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/UserGroupAssignmentListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\user\group\assignment\UserGroupAssignmentList;
 use wcf\page\MultipleLinkPage;
diff --git a/wcfsetup/install/files/lib/acp/page/UserGroupListPage.class.php b/wcfsetup/install/files/lib/acp/page/UserGroupListPage.class.php
index b20686daaa..870d858d54 100755
--- a/wcfsetup/install/files/lib/acp/page/UserGroupListPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/UserGroupListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\user\group\UserGroupList;
 use wcf\page\SortablePage;
diff --git a/wcfsetup/install/files/lib/acp/page/UserListPage.class.php b/wcfsetup/install/files/lib/acp/page/UserListPage.class.php
index c97b566c30..8721c99a64 100755
--- a/wcfsetup/install/files/lib/acp/page/UserListPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/UserListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\user\group\UserGroup;
 use wcf\data\user\option\ViewableUserOption;
diff --git a/wcfsetup/install/files/lib/acp/page/UserOptionCategoryListPage.class.php b/wcfsetup/install/files/lib/acp/page/UserOptionCategoryListPage.class.php
index 25d8e05cfb..83472e7ad0 100644
--- a/wcfsetup/install/files/lib/acp/page/UserOptionCategoryListPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/UserOptionCategoryListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\user\option\category\UserOptionCategoryList;
 use wcf\page\SortablePage;
diff --git a/wcfsetup/install/files/lib/acp/page/UserOptionListPage.class.php b/wcfsetup/install/files/lib/acp/page/UserOptionListPage.class.php
index 83b023495a..1a49abc509 100644
--- a/wcfsetup/install/files/lib/acp/page/UserOptionListPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/UserOptionListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\user\option\UserOptionList;
 use wcf\page\SortablePage;
diff --git a/wcfsetup/install/files/lib/acp/page/UserProfileMenuPage.class.php b/wcfsetup/install/files/lib/acp/page/UserProfileMenuPage.class.php
index f53ec10225..bbe63eb8ed 100644
--- a/wcfsetup/install/files/lib/acp/page/UserProfileMenuPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/UserProfileMenuPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\user\profile\menu\item\UserProfileMenuItemList;
 use wcf\page\AbstractPage;
diff --git a/wcfsetup/install/files/lib/acp/page/UserRankListPage.class.php b/wcfsetup/install/files/lib/acp/page/UserRankListPage.class.php
index dbed89e139..3f6a96903a 100644
--- a/wcfsetup/install/files/lib/acp/page/UserRankListPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/UserRankListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\user\rank\UserRankList;
 use wcf\page\SortablePage;
diff --git a/wcfsetup/install/files/lib/acp/page/UserTrophyListPage.class.php b/wcfsetup/install/files/lib/acp/page/UserTrophyListPage.class.php
index 69681e3e78..e320b50793 100644
--- a/wcfsetup/install/files/lib/acp/page/UserTrophyListPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/UserTrophyListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\trophy\category\TrophyCategoryCache;
 use wcf\data\trophy\Trophy;
diff --git a/wcfsetup/install/files/lib/acp/page/VersionTrackerListPage.class.php b/wcfsetup/install/files/lib/acp/page/VersionTrackerListPage.class.php
index 0332badd68..998e424650 100644
--- a/wcfsetup/install/files/lib/acp/page/VersionTrackerListPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/VersionTrackerListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\acp\page;
 use wcf\data\language\Language;
 use wcf\data\IVersionTrackerObject;
diff --git a/wcfsetup/install/files/lib/action/AJAXInvokeAction.class.php b/wcfsetup/install/files/lib/action/AJAXInvokeAction.class.php
index 5098d02453..a5e1a94821 100644
--- a/wcfsetup/install/files/lib/action/AJAXInvokeAction.class.php
+++ b/wcfsetup/install/files/lib/action/AJAXInvokeAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\action;
 use wcf\system\exception\AJAXException;
 use wcf\system\exception\IllegalLinkException;
diff --git a/wcfsetup/install/files/lib/action/AJAXProxyAction.class.php b/wcfsetup/install/files/lib/action/AJAXProxyAction.class.php
index 4ba96bb948..caa56bd150 100644
--- a/wcfsetup/install/files/lib/action/AJAXProxyAction.class.php
+++ b/wcfsetup/install/files/lib/action/AJAXProxyAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\action;
 use wcf\data\IDatabaseObjectAction;
 use wcf\system\exception\ImplementationException;
diff --git a/wcfsetup/install/files/lib/action/AJAXUploadAction.class.php b/wcfsetup/install/files/lib/action/AJAXUploadAction.class.php
index 912dc5c402..3b80c4f452 100644
--- a/wcfsetup/install/files/lib/action/AJAXUploadAction.class.php
+++ b/wcfsetup/install/files/lib/action/AJAXUploadAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\action;
 use wcf\system\upload\UploadHandler;
 use wcf\util\JSON;
diff --git a/wcfsetup/install/files/lib/action/AbstractAction.class.php b/wcfsetup/install/files/lib/action/AbstractAction.class.php
index c7af97de41..52e3e5afdb 100644
--- a/wcfsetup/install/files/lib/action/AbstractAction.class.php
+++ b/wcfsetup/install/files/lib/action/AbstractAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\action;
 use wcf\system\event\EventHandler;
 use wcf\system\exception\IllegalLinkException;
diff --git a/wcfsetup/install/files/lib/action/AbstractAjaxAction.class.php b/wcfsetup/install/files/lib/action/AbstractAjaxAction.class.php
index 278a7f4a45..c8dcb4c733 100644
--- a/wcfsetup/install/files/lib/action/AbstractAjaxAction.class.php
+++ b/wcfsetup/install/files/lib/action/AbstractAjaxAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\action;
 use wcf\util\JSON;
 
diff --git a/wcfsetup/install/files/lib/action/AbstractDialogAction.class.php b/wcfsetup/install/files/lib/action/AbstractDialogAction.class.php
index a10d12d522..9aeefafefa 100644
--- a/wcfsetup/install/files/lib/action/AbstractDialogAction.class.php
+++ b/wcfsetup/install/files/lib/action/AbstractDialogAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\action;
 use wcf\system\exception\AJAXException;
 use wcf\system\exception\IllegalLinkException;
diff --git a/wcfsetup/install/files/lib/action/AbstractSecureAction.class.php b/wcfsetup/install/files/lib/action/AbstractSecureAction.class.php
index 37f3dc48b8..383393ecbc 100644
--- a/wcfsetup/install/files/lib/action/AbstractSecureAction.class.php
+++ b/wcfsetup/install/files/lib/action/AbstractSecureAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\action;
 use wcf\system\exception\InvalidSecurityTokenException;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/action/BackgroundQueuePerformAction.class.php b/wcfsetup/install/files/lib/action/BackgroundQueuePerformAction.class.php
index a2c8093a5d..2753fc598a 100644
--- a/wcfsetup/install/files/lib/action/BackgroundQueuePerformAction.class.php
+++ b/wcfsetup/install/files/lib/action/BackgroundQueuePerformAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\action;
 use wcf\system\background\BackgroundQueueHandler;
 
diff --git a/wcfsetup/install/files/lib/action/CoreRewriteTestAction.class.php b/wcfsetup/install/files/lib/action/CoreRewriteTestAction.class.php
index 08b195ab3f..df1f020ace 100644
--- a/wcfsetup/install/files/lib/action/CoreRewriteTestAction.class.php
+++ b/wcfsetup/install/files/lib/action/CoreRewriteTestAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\action;
 use wcf\system\exception\IllegalLinkException;
 use wcf\util\CryptoUtil;
diff --git a/wcfsetup/install/files/lib/action/FacebookAuthAction.class.php b/wcfsetup/install/files/lib/action/FacebookAuthAction.class.php
index f6bd966b5b..4c14fe9d36 100644
--- a/wcfsetup/install/files/lib/action/FacebookAuthAction.class.php
+++ b/wcfsetup/install/files/lib/action/FacebookAuthAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\action;
 use wcf\data\user\User;
 use wcf\data\user\UserEditor;
diff --git a/wcfsetup/install/files/lib/action/GithubAuthAction.class.php b/wcfsetup/install/files/lib/action/GithubAuthAction.class.php
index 49735ba3cb..436245eba0 100644
--- a/wcfsetup/install/files/lib/action/GithubAuthAction.class.php
+++ b/wcfsetup/install/files/lib/action/GithubAuthAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\action;
 use wcf\data\user\User;
 use wcf\data\user\UserEditor;
diff --git a/wcfsetup/install/files/lib/action/GoogleAuthAction.class.php b/wcfsetup/install/files/lib/action/GoogleAuthAction.class.php
index a7adf2a5d1..b240984635 100644
--- a/wcfsetup/install/files/lib/action/GoogleAuthAction.class.php
+++ b/wcfsetup/install/files/lib/action/GoogleAuthAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\action;
 use wcf\data\user\User;
 use wcf\data\user\UserEditor;
diff --git a/wcfsetup/install/files/lib/action/GravatarDownloadAction.class.php b/wcfsetup/install/files/lib/action/GravatarDownloadAction.class.php
index fe85d4bdd7..f4e54027c3 100644
--- a/wcfsetup/install/files/lib/action/GravatarDownloadAction.class.php
+++ b/wcfsetup/install/files/lib/action/GravatarDownloadAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\action;
 use wcf\data\user\avatar\Gravatar;
 use wcf\data\user\avatar\UserAvatar;
diff --git a/wcfsetup/install/files/lib/action/IAction.class.php b/wcfsetup/install/files/lib/action/IAction.class.php
index bf00a84359..af4f02662f 100644
--- a/wcfsetup/install/files/lib/action/IAction.class.php
+++ b/wcfsetup/install/files/lib/action/IAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\action;
 
 /**
diff --git a/wcfsetup/install/files/lib/action/ImageProxyAction.class.php b/wcfsetup/install/files/lib/action/ImageProxyAction.class.php
index 3dc93ca821..b5ad6e4f80 100644
--- a/wcfsetup/install/files/lib/action/ImageProxyAction.class.php
+++ b/wcfsetup/install/files/lib/action/ImageProxyAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\action;
 use wcf\system\exception\IllegalLinkException;
 use wcf\system\exception\SystemException;
diff --git a/wcfsetup/install/files/lib/action/LogoutAction.class.php b/wcfsetup/install/files/lib/action/LogoutAction.class.php
index a0eefdc89b..09b80bceae 100644
--- a/wcfsetup/install/files/lib/action/LogoutAction.class.php
+++ b/wcfsetup/install/files/lib/action/LogoutAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\action;
 use wcf\system\request\LinkHandler;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/action/MessageQuoteAction.class.php b/wcfsetup/install/files/lib/action/MessageQuoteAction.class.php
index 4fdfdcec15..70a78a6779 100644
--- a/wcfsetup/install/files/lib/action/MessageQuoteAction.class.php
+++ b/wcfsetup/install/files/lib/action/MessageQuoteAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\action;
 use wcf\system\exception\SystemException;
 use wcf\system\exception\UserInputException;
diff --git a/wcfsetup/install/files/lib/action/NotificationConfirmAction.class.php b/wcfsetup/install/files/lib/action/NotificationConfirmAction.class.php
index 8f42cd0a70..ccc9b96c3c 100644
--- a/wcfsetup/install/files/lib/action/NotificationConfirmAction.class.php
+++ b/wcfsetup/install/files/lib/action/NotificationConfirmAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\action;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\data\user\notification\event\UserNotificationEvent;
diff --git a/wcfsetup/install/files/lib/action/NotificationDisableAction.class.php b/wcfsetup/install/files/lib/action/NotificationDisableAction.class.php
index 83556d566c..c8fb3420d8 100644
--- a/wcfsetup/install/files/lib/action/NotificationDisableAction.class.php
+++ b/wcfsetup/install/files/lib/action/NotificationDisableAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\action;
 use wcf\data\user\notification\event\UserNotificationEvent;
 use wcf\data\user\User;
diff --git a/wcfsetup/install/files/lib/action/PaypalCallbackAction.class.php b/wcfsetup/install/files/lib/action/PaypalCallbackAction.class.php
index 5f4489120c..f9f59f2758 100644
--- a/wcfsetup/install/files/lib/action/PaypalCallbackAction.class.php
+++ b/wcfsetup/install/files/lib/action/PaypalCallbackAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\action;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\system\exception\SystemException;
diff --git a/wcfsetup/install/files/lib/action/PollAction.class.php b/wcfsetup/install/files/lib/action/PollAction.class.php
index cb358ce9d1..24ff753a5e 100644
--- a/wcfsetup/install/files/lib/action/PollAction.class.php
+++ b/wcfsetup/install/files/lib/action/PollAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\action;
 use wcf\system\exception\IllegalLinkException;
 use wcf\system\exception\PermissionDeniedException;
diff --git a/wcfsetup/install/files/lib/action/TwitterAuthAction.class.php b/wcfsetup/install/files/lib/action/TwitterAuthAction.class.php
index d3ce624d55..dcdf3dc6b6 100644
--- a/wcfsetup/install/files/lib/action/TwitterAuthAction.class.php
+++ b/wcfsetup/install/files/lib/action/TwitterAuthAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\action;
 use wcf\data\user\User;
 use wcf\data\user\UserEditor;
diff --git a/wcfsetup/install/files/lib/data/AbstractDatabaseObjectAction.class.php b/wcfsetup/install/files/lib/data/AbstractDatabaseObjectAction.class.php
index e5c960aee8..f1f23c2aae 100644
--- a/wcfsetup/install/files/lib/data/AbstractDatabaseObjectAction.class.php
+++ b/wcfsetup/install/files/lib/data/AbstractDatabaseObjectAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data;
 use wcf\system\event\EventHandler;
 use wcf\system\exception\PermissionDeniedException;
diff --git a/wcfsetup/install/files/lib/data/DatabaseObject.class.php b/wcfsetup/install/files/lib/data/DatabaseObject.class.php
index dc8f7fca43..d29dae9bd9 100644
--- a/wcfsetup/install/files/lib/data/DatabaseObject.class.php
+++ b/wcfsetup/install/files/lib/data/DatabaseObject.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data;
 use wcf\system\WCF;
 
diff --git a/wcfsetup/install/files/lib/data/DatabaseObjectDecorator.class.php b/wcfsetup/install/files/lib/data/DatabaseObjectDecorator.class.php
index dcabed37dd..fc1362d88d 100644
--- a/wcfsetup/install/files/lib/data/DatabaseObjectDecorator.class.php
+++ b/wcfsetup/install/files/lib/data/DatabaseObjectDecorator.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data;
 use wcf\system\exception\SystemException;
 
diff --git a/wcfsetup/install/files/lib/data/DatabaseObjectEditor.class.php b/wcfsetup/install/files/lib/data/DatabaseObjectEditor.class.php
index a880f5b055..70b27b882b 100644
--- a/wcfsetup/install/files/lib/data/DatabaseObjectEditor.class.php
+++ b/wcfsetup/install/files/lib/data/DatabaseObjectEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data;
 use wcf\system\WCF;
 
diff --git a/wcfsetup/install/files/lib/data/DatabaseObjectList.class.php b/wcfsetup/install/files/lib/data/DatabaseObjectList.class.php
index 761eaa7a11..5d99f07062 100644
--- a/wcfsetup/install/files/lib/data/DatabaseObjectList.class.php
+++ b/wcfsetup/install/files/lib/data/DatabaseObjectList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data;
 use wcf\system\database\util\PreparedStatementConditionBuilder;
 use wcf\system\event\EventHandler;
diff --git a/wcfsetup/install/files/lib/data/I18nDatabaseObjectList.class.php b/wcfsetup/install/files/lib/data/I18nDatabaseObjectList.class.php
index 5670f231bd..66f970aa65 100644
--- a/wcfsetup/install/files/lib/data/I18nDatabaseObjectList.class.php
+++ b/wcfsetup/install/files/lib/data/I18nDatabaseObjectList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data;
 use wcf\system\WCF;
 use wcf\util\StringUtil;
diff --git a/wcfsetup/install/files/lib/data/IAccessibleObject.class.php b/wcfsetup/install/files/lib/data/IAccessibleObject.class.php
index 864ec63e63..59a4dfa713 100644
--- a/wcfsetup/install/files/lib/data/IAccessibleObject.class.php
+++ b/wcfsetup/install/files/lib/data/IAccessibleObject.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data;
 use wcf\data\user\User;
 
diff --git a/wcfsetup/install/files/lib/data/IAttachmentMessageQuickReplyAction.class.php b/wcfsetup/install/files/lib/data/IAttachmentMessageQuickReplyAction.class.php
index 9404a11b79..16575f09c2 100644
--- a/wcfsetup/install/files/lib/data/IAttachmentMessageQuickReplyAction.class.php
+++ b/wcfsetup/install/files/lib/data/IAttachmentMessageQuickReplyAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data;
 
 /**
diff --git a/wcfsetup/install/files/lib/data/ICategorizedObject.class.php b/wcfsetup/install/files/lib/data/ICategorizedObject.class.php
index ce2b2b20cd..fbdfec4d94 100644
--- a/wcfsetup/install/files/lib/data/ICategorizedObject.class.php
+++ b/wcfsetup/install/files/lib/data/ICategorizedObject.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data;
 
 /**
diff --git a/wcfsetup/install/files/lib/data/IClipboardAction.class.php b/wcfsetup/install/files/lib/data/IClipboardAction.class.php
index 808c961fdd..0abf9a8e3b 100644
--- a/wcfsetup/install/files/lib/data/IClipboardAction.class.php
+++ b/wcfsetup/install/files/lib/data/IClipboardAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data;
 
 /**
diff --git a/wcfsetup/install/files/lib/data/IDatabaseObjectAction.class.php b/wcfsetup/install/files/lib/data/IDatabaseObjectAction.class.php
index 369f193b48..1365161598 100644
--- a/wcfsetup/install/files/lib/data/IDatabaseObjectAction.class.php
+++ b/wcfsetup/install/files/lib/data/IDatabaseObjectAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data;
 
 /**
diff --git a/wcfsetup/install/files/lib/data/IDatabaseObjectProcessor.class.php b/wcfsetup/install/files/lib/data/IDatabaseObjectProcessor.class.php
index b17072ba67..b24ca31c86 100644
--- a/wcfsetup/install/files/lib/data/IDatabaseObjectProcessor.class.php
+++ b/wcfsetup/install/files/lib/data/IDatabaseObjectProcessor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data;
 
 /**
diff --git a/wcfsetup/install/files/lib/data/IDeleteAction.class.php b/wcfsetup/install/files/lib/data/IDeleteAction.class.php
index d3b10df509..5cca249878 100644
--- a/wcfsetup/install/files/lib/data/IDeleteAction.class.php
+++ b/wcfsetup/install/files/lib/data/IDeleteAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data;
 
 /**
diff --git a/wcfsetup/install/files/lib/data/IEditableCachedObject.class.php b/wcfsetup/install/files/lib/data/IEditableCachedObject.class.php
index 86c9bcb341..407316c7b2 100644
--- a/wcfsetup/install/files/lib/data/IEditableCachedObject.class.php
+++ b/wcfsetup/install/files/lib/data/IEditableCachedObject.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data;
 
 /**
diff --git a/wcfsetup/install/files/lib/data/IEditableObject.class.php b/wcfsetup/install/files/lib/data/IEditableObject.class.php
index aafe2e5fed..2183353e3f 100644
--- a/wcfsetup/install/files/lib/data/IEditableObject.class.php
+++ b/wcfsetup/install/files/lib/data/IEditableObject.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data;
 
 /**
diff --git a/wcfsetup/install/files/lib/data/IExtendedMessageQuickReplyAction.class.php b/wcfsetup/install/files/lib/data/IExtendedMessageQuickReplyAction.class.php
index c3ff0362d0..042bde1820 100644
--- a/wcfsetup/install/files/lib/data/IExtendedMessageQuickReplyAction.class.php
+++ b/wcfsetup/install/files/lib/data/IExtendedMessageQuickReplyAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data;
 
 /**
diff --git a/wcfsetup/install/files/lib/data/IFeedEntry.class.php b/wcfsetup/install/files/lib/data/IFeedEntry.class.php
index 1344ddcb2c..f82a8fe377 100644
--- a/wcfsetup/install/files/lib/data/IFeedEntry.class.php
+++ b/wcfsetup/install/files/lib/data/IFeedEntry.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data;
 
 /**
diff --git a/wcfsetup/install/files/lib/data/IFeedEntryWithEnclosure.class.php b/wcfsetup/install/files/lib/data/IFeedEntryWithEnclosure.class.php
index d4cac6bf99..8574c0a39b 100644
--- a/wcfsetup/install/files/lib/data/IFeedEntryWithEnclosure.class.php
+++ b/wcfsetup/install/files/lib/data/IFeedEntryWithEnclosure.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data;
 use wcf\system\feed\enclosure\FeedEnclosure;
 
diff --git a/wcfsetup/install/files/lib/data/IFile.class.php b/wcfsetup/install/files/lib/data/IFile.class.php
index a74dcf3dd9..49c9ddb82c 100644
--- a/wcfsetup/install/files/lib/data/IFile.class.php
+++ b/wcfsetup/install/files/lib/data/IFile.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data;
 
 /**
diff --git a/wcfsetup/install/files/lib/data/IGroupedUserListAction.class.php b/wcfsetup/install/files/lib/data/IGroupedUserListAction.class.php
index e33023a1bf..f130b7e354 100644
--- a/wcfsetup/install/files/lib/data/IGroupedUserListAction.class.php
+++ b/wcfsetup/install/files/lib/data/IGroupedUserListAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data;
 
 /**
diff --git a/wcfsetup/install/files/lib/data/IImageViewerAction.class.php b/wcfsetup/install/files/lib/data/IImageViewerAction.class.php
index 65d7c16e0f..1d600d2aac 100644
--- a/wcfsetup/install/files/lib/data/IImageViewerAction.class.php
+++ b/wcfsetup/install/files/lib/data/IImageViewerAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data;
 
 /**
diff --git a/wcfsetup/install/files/lib/data/ILinkableObject.class.php b/wcfsetup/install/files/lib/data/ILinkableObject.class.php
index 6509b80e8e..ef27071aef 100644
--- a/wcfsetup/install/files/lib/data/ILinkableObject.class.php
+++ b/wcfsetup/install/files/lib/data/ILinkableObject.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data;
 
 /**
diff --git a/wcfsetup/install/files/lib/data/ILoadableContainerAction.class.php b/wcfsetup/install/files/lib/data/ILoadableContainerAction.class.php
index 25d945bd88..0f99c663ec 100644
--- a/wcfsetup/install/files/lib/data/ILoadableContainerAction.class.php
+++ b/wcfsetup/install/files/lib/data/ILoadableContainerAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data;
 
 /**
diff --git a/wcfsetup/install/files/lib/data/IMessage.class.php b/wcfsetup/install/files/lib/data/IMessage.class.php
index 563a8cba55..1ea24413e9 100644
--- a/wcfsetup/install/files/lib/data/IMessage.class.php
+++ b/wcfsetup/install/files/lib/data/IMessage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data;
 
 /**
diff --git a/wcfsetup/install/files/lib/data/IMessageInlineEditorAction.class.php b/wcfsetup/install/files/lib/data/IMessageInlineEditorAction.class.php
index b29eed4a60..daf77ff6b9 100644
--- a/wcfsetup/install/files/lib/data/IMessageInlineEditorAction.class.php
+++ b/wcfsetup/install/files/lib/data/IMessageInlineEditorAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data;
 
 /**
diff --git a/wcfsetup/install/files/lib/data/IMessageQuickReplyAction.class.php b/wcfsetup/install/files/lib/data/IMessageQuickReplyAction.class.php
index 95c34134d2..779c81d101 100644
--- a/wcfsetup/install/files/lib/data/IMessageQuickReplyAction.class.php
+++ b/wcfsetup/install/files/lib/data/IMessageQuickReplyAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data;
 use wcf\system\html\input\HtmlInputProcessor;
 
diff --git a/wcfsetup/install/files/lib/data/IMessageQuoteAction.class.php b/wcfsetup/install/files/lib/data/IMessageQuoteAction.class.php
index bf66cb7f8d..07bcd65f1e 100644
--- a/wcfsetup/install/files/lib/data/IMessageQuoteAction.class.php
+++ b/wcfsetup/install/files/lib/data/IMessageQuoteAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data;
 
 /**
diff --git a/wcfsetup/install/files/lib/data/IPermissionObject.class.php b/wcfsetup/install/files/lib/data/IPermissionObject.class.php
index de64ef4c5c..8d92e654b2 100644
--- a/wcfsetup/install/files/lib/data/IPermissionObject.class.php
+++ b/wcfsetup/install/files/lib/data/IPermissionObject.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data;
 use wcf\system\exception\PermissionDeniedException;
 
diff --git a/wcfsetup/install/files/lib/data/IPollObject.class.php b/wcfsetup/install/files/lib/data/IPollObject.class.php
index d622d8cb42..1e4a5d0a72 100644
--- a/wcfsetup/install/files/lib/data/IPollObject.class.php
+++ b/wcfsetup/install/files/lib/data/IPollObject.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data;
 
 /**
diff --git a/wcfsetup/install/files/lib/data/ISearchAction.class.php b/wcfsetup/install/files/lib/data/ISearchAction.class.php
index a28665b5e5..fc7043d7ad 100644
--- a/wcfsetup/install/files/lib/data/ISearchAction.class.php
+++ b/wcfsetup/install/files/lib/data/ISearchAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data;
 
 /**
diff --git a/wcfsetup/install/files/lib/data/ISortableAction.class.php b/wcfsetup/install/files/lib/data/ISortableAction.class.php
index 81c179269d..fc04064601 100644
--- a/wcfsetup/install/files/lib/data/ISortableAction.class.php
+++ b/wcfsetup/install/files/lib/data/ISortableAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data;
 
 /**
diff --git a/wcfsetup/install/files/lib/data/IStorableObject.class.php b/wcfsetup/install/files/lib/data/IStorableObject.class.php
index 62bcf0e112..07aed193c9 100644
--- a/wcfsetup/install/files/lib/data/IStorableObject.class.php
+++ b/wcfsetup/install/files/lib/data/IStorableObject.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data;
 
 /**
diff --git a/wcfsetup/install/files/lib/data/IThumbnailFile.class.php b/wcfsetup/install/files/lib/data/IThumbnailFile.class.php
index c1bca49bd7..eaee397674 100644
--- a/wcfsetup/install/files/lib/data/IThumbnailFile.class.php
+++ b/wcfsetup/install/files/lib/data/IThumbnailFile.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data;
 
 /**
diff --git a/wcfsetup/install/files/lib/data/ITitledLinkObject.class.php b/wcfsetup/install/files/lib/data/ITitledLinkObject.class.php
index d0771d70e3..906ab4971d 100644
--- a/wcfsetup/install/files/lib/data/ITitledLinkObject.class.php
+++ b/wcfsetup/install/files/lib/data/ITitledLinkObject.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data;
 
 /**
diff --git a/wcfsetup/install/files/lib/data/ITitledObject.class.php b/wcfsetup/install/files/lib/data/ITitledObject.class.php
index 2d04ac4c95..6a2de0117b 100644
--- a/wcfsetup/install/files/lib/data/ITitledObject.class.php
+++ b/wcfsetup/install/files/lib/data/ITitledObject.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data;
 
 /**
diff --git a/wcfsetup/install/files/lib/data/IToggleAction.class.php b/wcfsetup/install/files/lib/data/IToggleAction.class.php
index 947fd48e76..3143fe68f3 100644
--- a/wcfsetup/install/files/lib/data/IToggleAction.class.php
+++ b/wcfsetup/install/files/lib/data/IToggleAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data;
 
 /**
diff --git a/wcfsetup/install/files/lib/data/IToggleContainerAction.class.php b/wcfsetup/install/files/lib/data/IToggleContainerAction.class.php
index 05551840f9..6a60f0e9a9 100644
--- a/wcfsetup/install/files/lib/data/IToggleContainerAction.class.php
+++ b/wcfsetup/install/files/lib/data/IToggleContainerAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data;
 
 /**
diff --git a/wcfsetup/install/files/lib/data/ITraversableObject.class.php b/wcfsetup/install/files/lib/data/ITraversableObject.class.php
index 873e1da3a7..0ff9c52f5a 100644
--- a/wcfsetup/install/files/lib/data/ITraversableObject.class.php
+++ b/wcfsetup/install/files/lib/data/ITraversableObject.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data;
 
 /**
diff --git a/wcfsetup/install/files/lib/data/IUploadAction.class.php b/wcfsetup/install/files/lib/data/IUploadAction.class.php
index a3acadfaf5..9b9878a4da 100644
--- a/wcfsetup/install/files/lib/data/IUploadAction.class.php
+++ b/wcfsetup/install/files/lib/data/IUploadAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data;
 
 /**
diff --git a/wcfsetup/install/files/lib/data/IUserContent.class.php b/wcfsetup/install/files/lib/data/IUserContent.class.php
index dd4102cc76..9b12eeb325 100644
--- a/wcfsetup/install/files/lib/data/IUserContent.class.php
+++ b/wcfsetup/install/files/lib/data/IUserContent.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data;
 
 /**
diff --git a/wcfsetup/install/files/lib/data/IVersionTrackerObject.class.php b/wcfsetup/install/files/lib/data/IVersionTrackerObject.class.php
index 6da1512f28..e0f05408b3 100644
--- a/wcfsetup/install/files/lib/data/IVersionTrackerObject.class.php
+++ b/wcfsetup/install/files/lib/data/IVersionTrackerObject.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data;
 
 /**
diff --git a/wcfsetup/install/files/lib/data/IVisitableObjectAction.class.php b/wcfsetup/install/files/lib/data/IVisitableObjectAction.class.php
index c823287514..2ffec65bf8 100644
--- a/wcfsetup/install/files/lib/data/IVisitableObjectAction.class.php
+++ b/wcfsetup/install/files/lib/data/IVisitableObjectAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data;
 
 /**
diff --git a/wcfsetup/install/files/lib/data/ProcessibleDatabaseObject.class.php b/wcfsetup/install/files/lib/data/ProcessibleDatabaseObject.class.php
index d7f2cc2e67..987260911a 100644
--- a/wcfsetup/install/files/lib/data/ProcessibleDatabaseObject.class.php
+++ b/wcfsetup/install/files/lib/data/ProcessibleDatabaseObject.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data;
 use wcf\system\exception\ImplementationException;
 use wcf\system\exception\SystemException;
diff --git a/wcfsetup/install/files/lib/data/TDatabaseObjectOptions.class.php b/wcfsetup/install/files/lib/data/TDatabaseObjectOptions.class.php
index a314d324a8..2f861b82fd 100644
--- a/wcfsetup/install/files/lib/data/TDatabaseObjectOptions.class.php
+++ b/wcfsetup/install/files/lib/data/TDatabaseObjectOptions.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data;
 
 /**
diff --git a/wcfsetup/install/files/lib/data/TDatabaseObjectPermissions.class.php b/wcfsetup/install/files/lib/data/TDatabaseObjectPermissions.class.php
index ff0bb9c4bc..3503a56119 100644
--- a/wcfsetup/install/files/lib/data/TDatabaseObjectPermissions.class.php
+++ b/wcfsetup/install/files/lib/data/TDatabaseObjectPermissions.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data;
 use wcf\system\WCF;
 
diff --git a/wcfsetup/install/files/lib/data/TLegacyUserPropertyAccess.class.php b/wcfsetup/install/files/lib/data/TLegacyUserPropertyAccess.class.php
index 67f0ee706a..6e879977cc 100644
--- a/wcfsetup/install/files/lib/data/TLegacyUserPropertyAccess.class.php
+++ b/wcfsetup/install/files/lib/data/TLegacyUserPropertyAccess.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data;
 
 /**
diff --git a/wcfsetup/install/files/lib/data/TMessageQuickReplyGuestDialogAction.class.php b/wcfsetup/install/files/lib/data/TMessageQuickReplyGuestDialogAction.class.php
index b72dafa2b6..61c72e77fa 100644
--- a/wcfsetup/install/files/lib/data/TMessageQuickReplyGuestDialogAction.class.php
+++ b/wcfsetup/install/files/lib/data/TMessageQuickReplyGuestDialogAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data;
 use wcf\data\object\type\ObjectType;
 use wcf\system\captcha\CaptchaHandler;
diff --git a/wcfsetup/install/files/lib/data/TMultiCategoryObject.class.php b/wcfsetup/install/files/lib/data/TMultiCategoryObject.class.php
index e6141b03a1..59b6b2a3de 100644
--- a/wcfsetup/install/files/lib/data/TMultiCategoryObject.class.php
+++ b/wcfsetup/install/files/lib/data/TMultiCategoryObject.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data;
 use wcf\data\category\AbstractDecoratedCategory;
 use wcf\system\exception\ParentClassException;
diff --git a/wcfsetup/install/files/lib/data/TUserContent.class.php b/wcfsetup/install/files/lib/data/TUserContent.class.php
index 1583b8e84e..25cc0855c3 100644
--- a/wcfsetup/install/files/lib/data/TUserContent.class.php
+++ b/wcfsetup/install/files/lib/data/TUserContent.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data;
 
 /**
diff --git a/wcfsetup/install/files/lib/data/acl/option/ACLOption.class.php b/wcfsetup/install/files/lib/data/acl/option/ACLOption.class.php
index cb13858805..056596658f 100644
--- a/wcfsetup/install/files/lib/data/acl/option/ACLOption.class.php
+++ b/wcfsetup/install/files/lib/data/acl/option/ACLOption.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\acl\option;
 use wcf\data\DatabaseObject;
 
diff --git a/wcfsetup/install/files/lib/data/acl/option/ACLOptionAction.class.php b/wcfsetup/install/files/lib/data/acl/option/ACLOptionAction.class.php
index df63084ed6..78d12fbd09 100644
--- a/wcfsetup/install/files/lib/data/acl/option/ACLOptionAction.class.php
+++ b/wcfsetup/install/files/lib/data/acl/option/ACLOptionAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\acl\option;
 use wcf\data\AbstractDatabaseObjectAction;
 use wcf\system\acl\ACLHandler;
diff --git a/wcfsetup/install/files/lib/data/acl/option/ACLOptionEditor.class.php b/wcfsetup/install/files/lib/data/acl/option/ACLOptionEditor.class.php
index 85cc08956e..6071832425 100644
--- a/wcfsetup/install/files/lib/data/acl/option/ACLOptionEditor.class.php
+++ b/wcfsetup/install/files/lib/data/acl/option/ACLOptionEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\acl\option;
 use wcf\data\DatabaseObjectEditor;
 
diff --git a/wcfsetup/install/files/lib/data/acl/option/ACLOptionList.class.php b/wcfsetup/install/files/lib/data/acl/option/ACLOptionList.class.php
index 184389f6e1..a71eb1f121 100644
--- a/wcfsetup/install/files/lib/data/acl/option/ACLOptionList.class.php
+++ b/wcfsetup/install/files/lib/data/acl/option/ACLOptionList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\acl\option;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/acl/option/category/ACLOptionCategory.class.php b/wcfsetup/install/files/lib/data/acl/option/category/ACLOptionCategory.class.php
index a9579713dc..d553c6f17b 100644
--- a/wcfsetup/install/files/lib/data/acl/option/category/ACLOptionCategory.class.php
+++ b/wcfsetup/install/files/lib/data/acl/option/category/ACLOptionCategory.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\acl\option\category;
 use wcf\data\DatabaseObject;
 
diff --git a/wcfsetup/install/files/lib/data/acl/option/category/ACLOptionCategoryAction.class.php b/wcfsetup/install/files/lib/data/acl/option/category/ACLOptionCategoryAction.class.php
index 55d94b4bf9..915a237fe6 100644
--- a/wcfsetup/install/files/lib/data/acl/option/category/ACLOptionCategoryAction.class.php
+++ b/wcfsetup/install/files/lib/data/acl/option/category/ACLOptionCategoryAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\acl\option\category;
 use wcf\data\AbstractDatabaseObjectAction;
 
diff --git a/wcfsetup/install/files/lib/data/acl/option/category/ACLOptionCategoryEditor.class.php b/wcfsetup/install/files/lib/data/acl/option/category/ACLOptionCategoryEditor.class.php
index 9b845318b1..01678f1191 100644
--- a/wcfsetup/install/files/lib/data/acl/option/category/ACLOptionCategoryEditor.class.php
+++ b/wcfsetup/install/files/lib/data/acl/option/category/ACLOptionCategoryEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\acl\option\category;
 use wcf\data\DatabaseObjectEditor;
 
diff --git a/wcfsetup/install/files/lib/data/acl/option/category/ACLOptionCategoryList.class.php b/wcfsetup/install/files/lib/data/acl/option/category/ACLOptionCategoryList.class.php
index a4fae8feee..c6470c12be 100644
--- a/wcfsetup/install/files/lib/data/acl/option/category/ACLOptionCategoryList.class.php
+++ b/wcfsetup/install/files/lib/data/acl/option/category/ACLOptionCategoryList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\acl\option\category;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/acp/menu/item/ACPMenuItem.class.php b/wcfsetup/install/files/lib/data/acp/menu/item/ACPMenuItem.class.php
index 93bf0a349c..44f8669a6b 100644
--- a/wcfsetup/install/files/lib/data/acp/menu/item/ACPMenuItem.class.php
+++ b/wcfsetup/install/files/lib/data/acp/menu/item/ACPMenuItem.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\acp\menu\item;
 use wcf\data\DatabaseObject;
 use wcf\system\menu\ITreeMenuItem;
diff --git a/wcfsetup/install/files/lib/data/acp/menu/item/ACPMenuItemAction.class.php b/wcfsetup/install/files/lib/data/acp/menu/item/ACPMenuItemAction.class.php
index 9945547ec1..df189f25ea 100644
--- a/wcfsetup/install/files/lib/data/acp/menu/item/ACPMenuItemAction.class.php
+++ b/wcfsetup/install/files/lib/data/acp/menu/item/ACPMenuItemAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\acp\menu\item;
 use wcf\data\AbstractDatabaseObjectAction;
 
diff --git a/wcfsetup/install/files/lib/data/acp/menu/item/ACPMenuItemEditor.class.php b/wcfsetup/install/files/lib/data/acp/menu/item/ACPMenuItemEditor.class.php
index 4ab9c87b1b..728a6b1329 100644
--- a/wcfsetup/install/files/lib/data/acp/menu/item/ACPMenuItemEditor.class.php
+++ b/wcfsetup/install/files/lib/data/acp/menu/item/ACPMenuItemEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\acp\menu\item;
 use wcf\data\DatabaseObjectEditor;
 
diff --git a/wcfsetup/install/files/lib/data/acp/menu/item/ACPMenuItemList.class.php b/wcfsetup/install/files/lib/data/acp/menu/item/ACPMenuItemList.class.php
index fb13a3c5ee..436ff73d52 100644
--- a/wcfsetup/install/files/lib/data/acp/menu/item/ACPMenuItemList.class.php
+++ b/wcfsetup/install/files/lib/data/acp/menu/item/ACPMenuItemList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\acp\menu\item;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/acp/search/provider/ACPSearchProvider.class.php b/wcfsetup/install/files/lib/data/acp/search/provider/ACPSearchProvider.class.php
index e7ac68fcb6..60889d6781 100644
--- a/wcfsetup/install/files/lib/data/acp/search/provider/ACPSearchProvider.class.php
+++ b/wcfsetup/install/files/lib/data/acp/search/provider/ACPSearchProvider.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\acp\search\provider;
 use wcf\data\DatabaseObject;
 
diff --git a/wcfsetup/install/files/lib/data/acp/search/provider/ACPSearchProviderAction.class.php b/wcfsetup/install/files/lib/data/acp/search/provider/ACPSearchProviderAction.class.php
index 337b8a60ca..1c4f4d9d36 100644
--- a/wcfsetup/install/files/lib/data/acp/search/provider/ACPSearchProviderAction.class.php
+++ b/wcfsetup/install/files/lib/data/acp/search/provider/ACPSearchProviderAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\acp\search\provider;
 use wcf\data\AbstractDatabaseObjectAction;
 use wcf\data\ISearchAction;
diff --git a/wcfsetup/install/files/lib/data/acp/search/provider/ACPSearchProviderEditor.class.php b/wcfsetup/install/files/lib/data/acp/search/provider/ACPSearchProviderEditor.class.php
index 6fde339a89..1d210a8ca8 100644
--- a/wcfsetup/install/files/lib/data/acp/search/provider/ACPSearchProviderEditor.class.php
+++ b/wcfsetup/install/files/lib/data/acp/search/provider/ACPSearchProviderEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\acp\search\provider;
 use wcf\data\DatabaseObjectEditor;
 
diff --git a/wcfsetup/install/files/lib/data/acp/search/provider/ACPSearchProviderList.class.php b/wcfsetup/install/files/lib/data/acp/search/provider/ACPSearchProviderList.class.php
index 040f0e7acf..7a8c3ecd70 100644
--- a/wcfsetup/install/files/lib/data/acp/search/provider/ACPSearchProviderList.class.php
+++ b/wcfsetup/install/files/lib/data/acp/search/provider/ACPSearchProviderList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\acp\search\provider;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/acp/session/ACPSession.class.php b/wcfsetup/install/files/lib/data/acp/session/ACPSession.class.php
index 7fc003831b..b744c6d70a 100644
--- a/wcfsetup/install/files/lib/data/acp/session/ACPSession.class.php
+++ b/wcfsetup/install/files/lib/data/acp/session/ACPSession.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\acp\session;
 use wcf\data\DatabaseObject;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/data/acp/session/ACPSessionAction.class.php b/wcfsetup/install/files/lib/data/acp/session/ACPSessionAction.class.php
index e16d4d3b29..a46444b79f 100644
--- a/wcfsetup/install/files/lib/data/acp/session/ACPSessionAction.class.php
+++ b/wcfsetup/install/files/lib/data/acp/session/ACPSessionAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\acp\session;
 use wcf\data\AbstractDatabaseObjectAction;
 
diff --git a/wcfsetup/install/files/lib/data/acp/session/ACPSessionEditor.class.php b/wcfsetup/install/files/lib/data/acp/session/ACPSessionEditor.class.php
index f2cba5384a..9569393af0 100644
--- a/wcfsetup/install/files/lib/data/acp/session/ACPSessionEditor.class.php
+++ b/wcfsetup/install/files/lib/data/acp/session/ACPSessionEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\acp\session;
 use wcf\data\DatabaseObjectEditor;
 use wcf\system\database\util\PreparedStatementConditionBuilder;
diff --git a/wcfsetup/install/files/lib/data/acp/session/ACPSessionList.class.php b/wcfsetup/install/files/lib/data/acp/session/ACPSessionList.class.php
index e41d08484b..b21409976f 100644
--- a/wcfsetup/install/files/lib/data/acp/session/ACPSessionList.class.php
+++ b/wcfsetup/install/files/lib/data/acp/session/ACPSessionList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\acp\session;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/acp/session/access/log/ACPSessionAccessLog.class.php b/wcfsetup/install/files/lib/data/acp/session/access/log/ACPSessionAccessLog.class.php
index c4c04338c3..b2cb0b7fae 100644
--- a/wcfsetup/install/files/lib/data/acp/session/access/log/ACPSessionAccessLog.class.php
+++ b/wcfsetup/install/files/lib/data/acp/session/access/log/ACPSessionAccessLog.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\acp\session\access\log;
 use wcf\data\DatabaseObject;
 use wcf\util\UserUtil;
diff --git a/wcfsetup/install/files/lib/data/acp/session/access/log/ACPSessionAccessLogAction.class.php b/wcfsetup/install/files/lib/data/acp/session/access/log/ACPSessionAccessLogAction.class.php
index ba01cae7ce..57943c0faf 100644
--- a/wcfsetup/install/files/lib/data/acp/session/access/log/ACPSessionAccessLogAction.class.php
+++ b/wcfsetup/install/files/lib/data/acp/session/access/log/ACPSessionAccessLogAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\acp\session\access\log;
 use wcf\data\AbstractDatabaseObjectAction;
 
diff --git a/wcfsetup/install/files/lib/data/acp/session/access/log/ACPSessionAccessLogEditor.class.php b/wcfsetup/install/files/lib/data/acp/session/access/log/ACPSessionAccessLogEditor.class.php
index e8831c0f2c..059b1f74d2 100644
--- a/wcfsetup/install/files/lib/data/acp/session/access/log/ACPSessionAccessLogEditor.class.php
+++ b/wcfsetup/install/files/lib/data/acp/session/access/log/ACPSessionAccessLogEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\acp\session\access\log;
 use wcf\data\DatabaseObjectEditor;
 
diff --git a/wcfsetup/install/files/lib/data/acp/session/access/log/ACPSessionAccessLogList.class.php b/wcfsetup/install/files/lib/data/acp/session/access/log/ACPSessionAccessLogList.class.php
index 2b06ef7112..79a7faac31 100644
--- a/wcfsetup/install/files/lib/data/acp/session/access/log/ACPSessionAccessLogList.class.php
+++ b/wcfsetup/install/files/lib/data/acp/session/access/log/ACPSessionAccessLogList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\acp\session\access\log;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/acp/session/log/ACPSessionLog.class.php b/wcfsetup/install/files/lib/data/acp/session/log/ACPSessionLog.class.php
index d04ae68f6b..8020ee2de8 100644
--- a/wcfsetup/install/files/lib/data/acp/session/log/ACPSessionLog.class.php
+++ b/wcfsetup/install/files/lib/data/acp/session/log/ACPSessionLog.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\acp\session\log;
 use wcf\data\DatabaseObject;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/data/acp/session/log/ACPSessionLogAction.class.php b/wcfsetup/install/files/lib/data/acp/session/log/ACPSessionLogAction.class.php
index b6249e4853..9893f11d08 100644
--- a/wcfsetup/install/files/lib/data/acp/session/log/ACPSessionLogAction.class.php
+++ b/wcfsetup/install/files/lib/data/acp/session/log/ACPSessionLogAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\acp\session\log;
 use wcf\data\AbstractDatabaseObjectAction;
 
diff --git a/wcfsetup/install/files/lib/data/acp/session/log/ACPSessionLogEditor.class.php b/wcfsetup/install/files/lib/data/acp/session/log/ACPSessionLogEditor.class.php
index 5fa2bdb656..859512e9f9 100644
--- a/wcfsetup/install/files/lib/data/acp/session/log/ACPSessionLogEditor.class.php
+++ b/wcfsetup/install/files/lib/data/acp/session/log/ACPSessionLogEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\acp\session\log;
 use wcf\data\DatabaseObjectEditor;
 
diff --git a/wcfsetup/install/files/lib/data/acp/session/log/ACPSessionLogList.class.php b/wcfsetup/install/files/lib/data/acp/session/log/ACPSessionLogList.class.php
index a1b11c2a0d..9fd3a18b28 100644
--- a/wcfsetup/install/files/lib/data/acp/session/log/ACPSessionLogList.class.php
+++ b/wcfsetup/install/files/lib/data/acp/session/log/ACPSessionLogList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\acp\session\log;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/acp/session/virtual/ACPSessionVirtual.class.php b/wcfsetup/install/files/lib/data/acp/session/virtual/ACPSessionVirtual.class.php
index 57d9fbfb6d..a7439f16f5 100644
--- a/wcfsetup/install/files/lib/data/acp/session/virtual/ACPSessionVirtual.class.php
+++ b/wcfsetup/install/files/lib/data/acp/session/virtual/ACPSessionVirtual.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\acp\session\virtual;
 use wcf\data\DatabaseObject;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/data/acp/session/virtual/ACPSessionVirtualAction.class.php b/wcfsetup/install/files/lib/data/acp/session/virtual/ACPSessionVirtualAction.class.php
index 48754f271f..496792c9ee 100644
--- a/wcfsetup/install/files/lib/data/acp/session/virtual/ACPSessionVirtualAction.class.php
+++ b/wcfsetup/install/files/lib/data/acp/session/virtual/ACPSessionVirtualAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\acp\session\virtual;
 use wcf\data\AbstractDatabaseObjectAction;
 use wcf\util\UserUtil;
diff --git a/wcfsetup/install/files/lib/data/acp/session/virtual/ACPSessionVirtualEditor.class.php b/wcfsetup/install/files/lib/data/acp/session/virtual/ACPSessionVirtualEditor.class.php
index 336043ff87..dfa4ded730 100644
--- a/wcfsetup/install/files/lib/data/acp/session/virtual/ACPSessionVirtualEditor.class.php
+++ b/wcfsetup/install/files/lib/data/acp/session/virtual/ACPSessionVirtualEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\acp\session\virtual;
 use wcf\data\DatabaseObjectEditor;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/data/acp/session/virtual/ACPSessionVirtualList.class.php b/wcfsetup/install/files/lib/data/acp/session/virtual/ACPSessionVirtualList.class.php
index c33e9ee6b1..967dd83850 100644
--- a/wcfsetup/install/files/lib/data/acp/session/virtual/ACPSessionVirtualList.class.php
+++ b/wcfsetup/install/files/lib/data/acp/session/virtual/ACPSessionVirtualList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\acp\session\virtual;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/acp/template/ACPTemplate.class.php b/wcfsetup/install/files/lib/data/acp/template/ACPTemplate.class.php
index 06bd9d8e3d..21bd220694 100644
--- a/wcfsetup/install/files/lib/data/acp/template/ACPTemplate.class.php
+++ b/wcfsetup/install/files/lib/data/acp/template/ACPTemplate.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\acp\template;
 use wcf\data\DatabaseObject;
 
diff --git a/wcfsetup/install/files/lib/data/acp/template/ACPTemplateAction.class.php b/wcfsetup/install/files/lib/data/acp/template/ACPTemplateAction.class.php
index bd08156888..c5b9c06b82 100644
--- a/wcfsetup/install/files/lib/data/acp/template/ACPTemplateAction.class.php
+++ b/wcfsetup/install/files/lib/data/acp/template/ACPTemplateAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\acp\template;
 use wcf\data\AbstractDatabaseObjectAction;
 
diff --git a/wcfsetup/install/files/lib/data/acp/template/ACPTemplateEditor.class.php b/wcfsetup/install/files/lib/data/acp/template/ACPTemplateEditor.class.php
index 7f6fb2ad3f..65039b27b2 100644
--- a/wcfsetup/install/files/lib/data/acp/template/ACPTemplateEditor.class.php
+++ b/wcfsetup/install/files/lib/data/acp/template/ACPTemplateEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\acp\template;
 use wcf\data\DatabaseObjectEditor;
 
diff --git a/wcfsetup/install/files/lib/data/acp/template/ACPTemplateList.class.php b/wcfsetup/install/files/lib/data/acp/template/ACPTemplateList.class.php
index fe69303e61..7aedf0cd81 100644
--- a/wcfsetup/install/files/lib/data/acp/template/ACPTemplateList.class.php
+++ b/wcfsetup/install/files/lib/data/acp/template/ACPTemplateList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\acp\template;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/ad/Ad.class.php b/wcfsetup/install/files/lib/data/ad/Ad.class.php
index f1dabd098b..321130a57a 100644
--- a/wcfsetup/install/files/lib/data/ad/Ad.class.php
+++ b/wcfsetup/install/files/lib/data/ad/Ad.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\ad;
 use wcf\data\condition\Condition;
 use wcf\data\object\type\ObjectTypeCache;
diff --git a/wcfsetup/install/files/lib/data/ad/AdAction.class.php b/wcfsetup/install/files/lib/data/ad/AdAction.class.php
index 396fc55214..b04601cef4 100644
--- a/wcfsetup/install/files/lib/data/ad/AdAction.class.php
+++ b/wcfsetup/install/files/lib/data/ad/AdAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\ad;
 use wcf\data\AbstractDatabaseObjectAction;
 use wcf\data\ISortableAction;
diff --git a/wcfsetup/install/files/lib/data/ad/AdEditor.class.php b/wcfsetup/install/files/lib/data/ad/AdEditor.class.php
index a8a727cad7..cbfff6bea2 100644
--- a/wcfsetup/install/files/lib/data/ad/AdEditor.class.php
+++ b/wcfsetup/install/files/lib/data/ad/AdEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\ad;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\data\DatabaseObjectEditor;
diff --git a/wcfsetup/install/files/lib/data/ad/AdList.class.php b/wcfsetup/install/files/lib/data/ad/AdList.class.php
index bbae6ad948..4b0a129fe4 100644
--- a/wcfsetup/install/files/lib/data/ad/AdList.class.php
+++ b/wcfsetup/install/files/lib/data/ad/AdList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\ad;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/application/Application.class.php b/wcfsetup/install/files/lib/data/application/Application.class.php
index 0a3e968549..795f708a93 100644
--- a/wcfsetup/install/files/lib/data/application/Application.class.php
+++ b/wcfsetup/install/files/lib/data/application/Application.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\application;
 use wcf\data\package\Package;
 use wcf\data\package\PackageCache;
diff --git a/wcfsetup/install/files/lib/data/application/ApplicationAction.class.php b/wcfsetup/install/files/lib/data/application/ApplicationAction.class.php
index 4ec0121708..6494d08d9c 100644
--- a/wcfsetup/install/files/lib/data/application/ApplicationAction.class.php
+++ b/wcfsetup/install/files/lib/data/application/ApplicationAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\application;
 use wcf\data\AbstractDatabaseObjectAction;
 use wcf\system\cache\builder\ApplicationCacheBuilder;
diff --git a/wcfsetup/install/files/lib/data/application/ApplicationEditor.class.php b/wcfsetup/install/files/lib/data/application/ApplicationEditor.class.php
index 04544a261a..7ea0d6b348 100644
--- a/wcfsetup/install/files/lib/data/application/ApplicationEditor.class.php
+++ b/wcfsetup/install/files/lib/data/application/ApplicationEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\application;
 use wcf\data\DatabaseObjectEditor;
 use wcf\data\IEditableCachedObject;
diff --git a/wcfsetup/install/files/lib/data/application/ApplicationList.class.php b/wcfsetup/install/files/lib/data/application/ApplicationList.class.php
index fa8b1643fd..11baa3e256 100644
--- a/wcfsetup/install/files/lib/data/application/ApplicationList.class.php
+++ b/wcfsetup/install/files/lib/data/application/ApplicationList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\application;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/application/ViewableApplication.class.php b/wcfsetup/install/files/lib/data/application/ViewableApplication.class.php
index 0de8a6195f..fe10d89ef9 100644
--- a/wcfsetup/install/files/lib/data/application/ViewableApplication.class.php
+++ b/wcfsetup/install/files/lib/data/application/ViewableApplication.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\application;
 use wcf\data\package\Package;
 use wcf\data\package\PackageCache;
diff --git a/wcfsetup/install/files/lib/data/application/ViewableApplicationList.class.php b/wcfsetup/install/files/lib/data/application/ViewableApplicationList.class.php
index 3b7ba61ce6..a6c9d462a3 100644
--- a/wcfsetup/install/files/lib/data/application/ViewableApplicationList.class.php
+++ b/wcfsetup/install/files/lib/data/application/ViewableApplicationList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\application;
 
 /**
diff --git a/wcfsetup/install/files/lib/data/article/AccessibleArticleList.class.php b/wcfsetup/install/files/lib/data/article/AccessibleArticleList.class.php
index 160566950c..fa0aa1981b 100644
--- a/wcfsetup/install/files/lib/data/article/AccessibleArticleList.class.php
+++ b/wcfsetup/install/files/lib/data/article/AccessibleArticleList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\article;
 use wcf\data\article\category\ArticleCategory;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/data/article/Article.class.php b/wcfsetup/install/files/lib/data/article/Article.class.php
index 5806e17ad6..49e91efdd6 100644
--- a/wcfsetup/install/files/lib/data/article/Article.class.php
+++ b/wcfsetup/install/files/lib/data/article/Article.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\article;
 use wcf\data\article\category\ArticleCategory;
 use wcf\data\article\content\ArticleContent;
diff --git a/wcfsetup/install/files/lib/data/article/ArticleAction.class.php b/wcfsetup/install/files/lib/data/article/ArticleAction.class.php
index 2e6e9444e6..1b4054f5b1 100644
--- a/wcfsetup/install/files/lib/data/article/ArticleAction.class.php
+++ b/wcfsetup/install/files/lib/data/article/ArticleAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\article;
 use wcf\data\article\category\ArticleCategory;
 use wcf\data\article\content\ArticleContent;
diff --git a/wcfsetup/install/files/lib/data/article/ArticleEditor.class.php b/wcfsetup/install/files/lib/data/article/ArticleEditor.class.php
index c48831ee73..d596908f9c 100644
--- a/wcfsetup/install/files/lib/data/article/ArticleEditor.class.php
+++ b/wcfsetup/install/files/lib/data/article/ArticleEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\article;
 use wcf\data\DatabaseObjectEditor;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/data/article/ArticleList.class.php b/wcfsetup/install/files/lib/data/article/ArticleList.class.php
index 1280cfbb7b..823e9f03d1 100644
--- a/wcfsetup/install/files/lib/data/article/ArticleList.class.php
+++ b/wcfsetup/install/files/lib/data/article/ArticleList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\article;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/article/ArticleVersionTracker.class.php b/wcfsetup/install/files/lib/data/article/ArticleVersionTracker.class.php
index 49939bc554..a64683500e 100644
--- a/wcfsetup/install/files/lib/data/article/ArticleVersionTracker.class.php
+++ b/wcfsetup/install/files/lib/data/article/ArticleVersionTracker.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\article;
 use wcf\data\article\content\ArticleContent;
 use wcf\data\DatabaseObjectDecorator;
diff --git a/wcfsetup/install/files/lib/data/article/CategoryArticleList.class.php b/wcfsetup/install/files/lib/data/article/CategoryArticleList.class.php
index fc96ed97ca..c4332b3105 100644
--- a/wcfsetup/install/files/lib/data/article/CategoryArticleList.class.php
+++ b/wcfsetup/install/files/lib/data/article/CategoryArticleList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\article;
 use wcf\data\article\category\ArticleCategory;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/data/article/FeedArticle.class.php b/wcfsetup/install/files/lib/data/article/FeedArticle.class.php
index b2164bd016..ca274e08b4 100644
--- a/wcfsetup/install/files/lib/data/article/FeedArticle.class.php
+++ b/wcfsetup/install/files/lib/data/article/FeedArticle.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\article;
 use wcf\data\IFeedEntryWithEnclosure;
 use wcf\data\TUserContent;
diff --git a/wcfsetup/install/files/lib/data/article/FeedArticleList.class.php b/wcfsetup/install/files/lib/data/article/FeedArticleList.class.php
index f3d0eaa294..a934fe4ef5 100644
--- a/wcfsetup/install/files/lib/data/article/FeedArticleList.class.php
+++ b/wcfsetup/install/files/lib/data/article/FeedArticleList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\article;
 
 /**
diff --git a/wcfsetup/install/files/lib/data/article/LikeableArticle.class.php b/wcfsetup/install/files/lib/data/article/LikeableArticle.class.php
index 82e4b7750d..33f9babe4a 100644
--- a/wcfsetup/install/files/lib/data/article/LikeableArticle.class.php
+++ b/wcfsetup/install/files/lib/data/article/LikeableArticle.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\article;
 use wcf\data\like\object\AbstractLikeObject;
 
diff --git a/wcfsetup/install/files/lib/data/article/LikeableArticleProvider.class.php b/wcfsetup/install/files/lib/data/article/LikeableArticleProvider.class.php
index ce160c2620..f8f505afed 100644
--- a/wcfsetup/install/files/lib/data/article/LikeableArticleProvider.class.php
+++ b/wcfsetup/install/files/lib/data/article/LikeableArticleProvider.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\article;
 use wcf\data\like\object\ILikeObject;
 use wcf\data\like\ILikeObjectTypeProvider;
diff --git a/wcfsetup/install/files/lib/data/article/TaggedArticleList.class.php b/wcfsetup/install/files/lib/data/article/TaggedArticleList.class.php
index 16f29ac926..fd212f59fe 100644
--- a/wcfsetup/install/files/lib/data/article/TaggedArticleList.class.php
+++ b/wcfsetup/install/files/lib/data/article/TaggedArticleList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\article;
 use wcf\data\tag\Tag;
 use wcf\system\tagging\TagEngine;
diff --git a/wcfsetup/install/files/lib/data/article/ViewableArticle.class.php b/wcfsetup/install/files/lib/data/article/ViewableArticle.class.php
index 1d33dbde3d..0d48d4d22a 100644
--- a/wcfsetup/install/files/lib/data/article/ViewableArticle.class.php
+++ b/wcfsetup/install/files/lib/data/article/ViewableArticle.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\article;
 use wcf\data\article\category\ArticleCategory;
 use wcf\data\article\content\ArticleContent;
diff --git a/wcfsetup/install/files/lib/data/article/ViewableArticleList.class.php b/wcfsetup/install/files/lib/data/article/ViewableArticleList.class.php
index c6278d2252..ab6cc05ca5 100644
--- a/wcfsetup/install/files/lib/data/article/ViewableArticleList.class.php
+++ b/wcfsetup/install/files/lib/data/article/ViewableArticleList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\article;
 use wcf\data\article\content\ViewableArticleContentList;
 use wcf\system\cache\runtime\UserProfileRuntimeCache;
diff --git a/wcfsetup/install/files/lib/data/article/category/ArticleCategory.class.php b/wcfsetup/install/files/lib/data/article/category/ArticleCategory.class.php
index 78b4d39ffb..33dd8b405a 100644
--- a/wcfsetup/install/files/lib/data/article/category/ArticleCategory.class.php
+++ b/wcfsetup/install/files/lib/data/article/category/ArticleCategory.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\article\category;
 use wcf\data\category\AbstractDecoratedCategory;
 use wcf\data\label\group\ViewableLabelGroup;
diff --git a/wcfsetup/install/files/lib/data/article/category/ArticleCategoryCache.class.php b/wcfsetup/install/files/lib/data/article/category/ArticleCategoryCache.class.php
index 6ee153b287..8ed89db3f0 100644
--- a/wcfsetup/install/files/lib/data/article/category/ArticleCategoryCache.class.php
+++ b/wcfsetup/install/files/lib/data/article/category/ArticleCategoryCache.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\article\category;
 use wcf\data\article\Article;
 use wcf\data\category\Category;
diff --git a/wcfsetup/install/files/lib/data/article/category/ArticleCategoryNode.class.php b/wcfsetup/install/files/lib/data/article/category/ArticleCategoryNode.class.php
index fdf2cc8106..382e88d9fd 100644
--- a/wcfsetup/install/files/lib/data/article/category/ArticleCategoryNode.class.php
+++ b/wcfsetup/install/files/lib/data/article/category/ArticleCategoryNode.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\article\category;
 use wcf\data\category\CategoryNode;
 
diff --git a/wcfsetup/install/files/lib/data/article/category/ArticleCategoryNodeTree.class.php b/wcfsetup/install/files/lib/data/article/category/ArticleCategoryNodeTree.class.php
index ec8304fb77..d1d99b0d06 100644
--- a/wcfsetup/install/files/lib/data/article/category/ArticleCategoryNodeTree.class.php
+++ b/wcfsetup/install/files/lib/data/article/category/ArticleCategoryNodeTree.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\article\category;
 use wcf\data\category\CategoryNode;
 use wcf\data\category\CategoryNodeTree;
diff --git a/wcfsetup/install/files/lib/data/article/content/ArticleContent.class.php b/wcfsetup/install/files/lib/data/article/content/ArticleContent.class.php
index af68d36444..ca7587f8ca 100644
--- a/wcfsetup/install/files/lib/data/article/content/ArticleContent.class.php
+++ b/wcfsetup/install/files/lib/data/article/content/ArticleContent.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\article\content;
 use wcf\data\article\Article;
 use wcf\data\language\Language;
diff --git a/wcfsetup/install/files/lib/data/article/content/ArticleContentAction.class.php b/wcfsetup/install/files/lib/data/article/content/ArticleContentAction.class.php
index 73933c86c8..e9a61a6dec 100644
--- a/wcfsetup/install/files/lib/data/article/content/ArticleContentAction.class.php
+++ b/wcfsetup/install/files/lib/data/article/content/ArticleContentAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\article\content;
 use wcf\data\AbstractDatabaseObjectAction;
 use wcf\system\comment\CommentHandler;
diff --git a/wcfsetup/install/files/lib/data/article/content/ArticleContentEditor.class.php b/wcfsetup/install/files/lib/data/article/content/ArticleContentEditor.class.php
index 9b458336d6..7b1dd63047 100644
--- a/wcfsetup/install/files/lib/data/article/content/ArticleContentEditor.class.php
+++ b/wcfsetup/install/files/lib/data/article/content/ArticleContentEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\article\content;
 use wcf\data\DatabaseObjectEditor;
 
diff --git a/wcfsetup/install/files/lib/data/article/content/ArticleContentList.class.php b/wcfsetup/install/files/lib/data/article/content/ArticleContentList.class.php
index 9c431fb1f5..933ab71113 100644
--- a/wcfsetup/install/files/lib/data/article/content/ArticleContentList.class.php
+++ b/wcfsetup/install/files/lib/data/article/content/ArticleContentList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\article\content;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/article/content/SearchResultArticleContent.class.php b/wcfsetup/install/files/lib/data/article/content/SearchResultArticleContent.class.php
index f953668c6b..d391b06d09 100644
--- a/wcfsetup/install/files/lib/data/article/content/SearchResultArticleContent.class.php
+++ b/wcfsetup/install/files/lib/data/article/content/SearchResultArticleContent.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\article\content;
 use wcf\data\search\ISearchResultObject;
 use wcf\system\request\LinkHandler;
diff --git a/wcfsetup/install/files/lib/data/article/content/SearchResultArticleContentList.class.php b/wcfsetup/install/files/lib/data/article/content/SearchResultArticleContentList.class.php
index 488c6a33a3..113276a4ca 100644
--- a/wcfsetup/install/files/lib/data/article/content/SearchResultArticleContentList.class.php
+++ b/wcfsetup/install/files/lib/data/article/content/SearchResultArticleContentList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\article\content;
 
 /**
diff --git a/wcfsetup/install/files/lib/data/article/content/ViewableArticleContent.class.php b/wcfsetup/install/files/lib/data/article/content/ViewableArticleContent.class.php
index 312bed7c68..2ff54cbea4 100644
--- a/wcfsetup/install/files/lib/data/article/content/ViewableArticleContent.class.php
+++ b/wcfsetup/install/files/lib/data/article/content/ViewableArticleContent.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\article\content;
 use wcf\data\article\ViewableArticle;
 use wcf\data\media\ViewableMedia;
diff --git a/wcfsetup/install/files/lib/data/article/content/ViewableArticleContentList.class.php b/wcfsetup/install/files/lib/data/article/content/ViewableArticleContentList.class.php
index e46422fdc5..2fc1ef1d9c 100644
--- a/wcfsetup/install/files/lib/data/article/content/ViewableArticleContentList.class.php
+++ b/wcfsetup/install/files/lib/data/article/content/ViewableArticleContentList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\article\content;
 use wcf\data\media\ViewableMediaList;
 use wcf\system\message\embedded\object\MessageEmbeddedObjectManager;
diff --git a/wcfsetup/install/files/lib/data/attachment/AdministrativeAttachment.class.php b/wcfsetup/install/files/lib/data/attachment/AdministrativeAttachment.class.php
index 96ae3962d5..9b0ec7f479 100644
--- a/wcfsetup/install/files/lib/data/attachment/AdministrativeAttachment.class.php
+++ b/wcfsetup/install/files/lib/data/attachment/AdministrativeAttachment.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\attachment;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\data\DatabaseObjectDecorator;
diff --git a/wcfsetup/install/files/lib/data/attachment/AdministrativeAttachmentList.class.php b/wcfsetup/install/files/lib/data/attachment/AdministrativeAttachmentList.class.php
index 1376c9ce55..2160fcb7d7 100644
--- a/wcfsetup/install/files/lib/data/attachment/AdministrativeAttachmentList.class.php
+++ b/wcfsetup/install/files/lib/data/attachment/AdministrativeAttachmentList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\attachment;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/data/attachment/Attachment.class.php b/wcfsetup/install/files/lib/data/attachment/Attachment.class.php
index 17e12d6537..9bcdcf5187 100644
--- a/wcfsetup/install/files/lib/data/attachment/Attachment.class.php
+++ b/wcfsetup/install/files/lib/data/attachment/Attachment.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\attachment;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\data\DatabaseObject;
diff --git a/wcfsetup/install/files/lib/data/attachment/AttachmentAction.class.php b/wcfsetup/install/files/lib/data/attachment/AttachmentAction.class.php
index 93467ce323..6ed36b7f37 100644
--- a/wcfsetup/install/files/lib/data/attachment/AttachmentAction.class.php
+++ b/wcfsetup/install/files/lib/data/attachment/AttachmentAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\attachment;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\data\AbstractDatabaseObjectAction;
diff --git a/wcfsetup/install/files/lib/data/attachment/AttachmentEditor.class.php b/wcfsetup/install/files/lib/data/attachment/AttachmentEditor.class.php
index 8f87fe4527..055efccd29 100644
--- a/wcfsetup/install/files/lib/data/attachment/AttachmentEditor.class.php
+++ b/wcfsetup/install/files/lib/data/attachment/AttachmentEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\attachment;
 use wcf\data\DatabaseObjectEditor;
 use wcf\system\database\util\PreparedStatementConditionBuilder;
diff --git a/wcfsetup/install/files/lib/data/attachment/AttachmentList.class.php b/wcfsetup/install/files/lib/data/attachment/AttachmentList.class.php
index 7bfb1df1dd..e5fabcd052 100644
--- a/wcfsetup/install/files/lib/data/attachment/AttachmentList.class.php
+++ b/wcfsetup/install/files/lib/data/attachment/AttachmentList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\attachment;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/attachment/GroupedAttachmentList.class.php b/wcfsetup/install/files/lib/data/attachment/GroupedAttachmentList.class.php
index ec62fff237..f1c5f36dcb 100644
--- a/wcfsetup/install/files/lib/data/attachment/GroupedAttachmentList.class.php
+++ b/wcfsetup/install/files/lib/data/attachment/GroupedAttachmentList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\attachment;
 use wcf\data\object\type\ObjectTypeCache;
 
diff --git a/wcfsetup/install/files/lib/data/bbcode/BBCode.class.php b/wcfsetup/install/files/lib/data/bbcode/BBCode.class.php
index 0ec0c718eb..ea33502200 100644
--- a/wcfsetup/install/files/lib/data/bbcode/BBCode.class.php
+++ b/wcfsetup/install/files/lib/data/bbcode/BBCode.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\bbcode;
 use wcf\data\bbcode\attribute\BBCodeAttribute;
 use wcf\data\ProcessibleDatabaseObject;
diff --git a/wcfsetup/install/files/lib/data/bbcode/BBCodeAction.class.php b/wcfsetup/install/files/lib/data/bbcode/BBCodeAction.class.php
index 0ea8a5c78e..1d7fd46dfa 100644
--- a/wcfsetup/install/files/lib/data/bbcode/BBCodeAction.class.php
+++ b/wcfsetup/install/files/lib/data/bbcode/BBCodeAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\bbcode;
 use wcf\data\user\group\UserGroup;
 use wcf\data\user\group\UserGroupEditor;
diff --git a/wcfsetup/install/files/lib/data/bbcode/BBCodeCache.class.php b/wcfsetup/install/files/lib/data/bbcode/BBCodeCache.class.php
index c75f24e332..e18db8874f 100644
--- a/wcfsetup/install/files/lib/data/bbcode/BBCodeCache.class.php
+++ b/wcfsetup/install/files/lib/data/bbcode/BBCodeCache.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\bbcode;
 use wcf\data\bbcode\attribute\BBCodeAttribute;
 use wcf\system\cache\builder\BBCodeCacheBuilder;
diff --git a/wcfsetup/install/files/lib/data/bbcode/BBCodeEditor.class.php b/wcfsetup/install/files/lib/data/bbcode/BBCodeEditor.class.php
index 6becfb9a35..696126dbcd 100644
--- a/wcfsetup/install/files/lib/data/bbcode/BBCodeEditor.class.php
+++ b/wcfsetup/install/files/lib/data/bbcode/BBCodeEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\bbcode;
 use wcf\data\DatabaseObjectEditor;
 use wcf\data\IEditableCachedObject;
diff --git a/wcfsetup/install/files/lib/data/bbcode/BBCodeList.class.php b/wcfsetup/install/files/lib/data/bbcode/BBCodeList.class.php
index 0729fbf914..894d34e8d1 100644
--- a/wcfsetup/install/files/lib/data/bbcode/BBCodeList.class.php
+++ b/wcfsetup/install/files/lib/data/bbcode/BBCodeList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\bbcode;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/bbcode/MessagePreviewAction.class.php b/wcfsetup/install/files/lib/data/bbcode/MessagePreviewAction.class.php
index acef3f2fc4..6457abe8db 100644
--- a/wcfsetup/install/files/lib/data/bbcode/MessagePreviewAction.class.php
+++ b/wcfsetup/install/files/lib/data/bbcode/MessagePreviewAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\bbcode;
 use wcf\system\bbcode\BBCodeHandler;
 use wcf\system\exception\UserInputException;
diff --git a/wcfsetup/install/files/lib/data/bbcode/attribute/BBCodeAttribute.class.php b/wcfsetup/install/files/lib/data/bbcode/attribute/BBCodeAttribute.class.php
index 51e901e82d..42a404cb72 100644
--- a/wcfsetup/install/files/lib/data/bbcode/attribute/BBCodeAttribute.class.php
+++ b/wcfsetup/install/files/lib/data/bbcode/attribute/BBCodeAttribute.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\bbcode\attribute;
 use wcf\data\bbcode\BBCode;
 use wcf\data\DatabaseObject;
diff --git a/wcfsetup/install/files/lib/data/bbcode/attribute/BBCodeAttributeAction.class.php b/wcfsetup/install/files/lib/data/bbcode/attribute/BBCodeAttributeAction.class.php
index 0a8f8fe11d..48e15cc931 100644
--- a/wcfsetup/install/files/lib/data/bbcode/attribute/BBCodeAttributeAction.class.php
+++ b/wcfsetup/install/files/lib/data/bbcode/attribute/BBCodeAttributeAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\bbcode\attribute;
 use wcf\data\AbstractDatabaseObjectAction;
 
diff --git a/wcfsetup/install/files/lib/data/bbcode/attribute/BBCodeAttributeEditor.class.php b/wcfsetup/install/files/lib/data/bbcode/attribute/BBCodeAttributeEditor.class.php
index c62511f076..806df3b538 100644
--- a/wcfsetup/install/files/lib/data/bbcode/attribute/BBCodeAttributeEditor.class.php
+++ b/wcfsetup/install/files/lib/data/bbcode/attribute/BBCodeAttributeEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\bbcode\attribute;
 use wcf\data\DatabaseObjectEditor;
 
diff --git a/wcfsetup/install/files/lib/data/bbcode/attribute/BBCodeAttributeList.class.php b/wcfsetup/install/files/lib/data/bbcode/attribute/BBCodeAttributeList.class.php
index 47f56c2f9a..71b44fa48a 100644
--- a/wcfsetup/install/files/lib/data/bbcode/attribute/BBCodeAttributeList.class.php
+++ b/wcfsetup/install/files/lib/data/bbcode/attribute/BBCodeAttributeList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\bbcode\attribute;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/bbcode/media/provider/BBCodeMediaProvider.class.php b/wcfsetup/install/files/lib/data/bbcode/media/provider/BBCodeMediaProvider.class.php
index b643b1784a..caec8b4756 100644
--- a/wcfsetup/install/files/lib/data/bbcode/media/provider/BBCodeMediaProvider.class.php
+++ b/wcfsetup/install/files/lib/data/bbcode/media/provider/BBCodeMediaProvider.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\bbcode\media\provider;
 use wcf\data\DatabaseObject;
 use wcf\system\bbcode\media\provider\IBBCodeMediaProvider;
diff --git a/wcfsetup/install/files/lib/data/bbcode/media/provider/BBCodeMediaProviderAction.class.php b/wcfsetup/install/files/lib/data/bbcode/media/provider/BBCodeMediaProviderAction.class.php
index bebc9d5126..dae16ed6fb 100644
--- a/wcfsetup/install/files/lib/data/bbcode/media/provider/BBCodeMediaProviderAction.class.php
+++ b/wcfsetup/install/files/lib/data/bbcode/media/provider/BBCodeMediaProviderAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\bbcode\media\provider;
 use wcf\data\AbstractDatabaseObjectAction;
 
diff --git a/wcfsetup/install/files/lib/data/bbcode/media/provider/BBCodeMediaProviderEditor.class.php b/wcfsetup/install/files/lib/data/bbcode/media/provider/BBCodeMediaProviderEditor.class.php
index 562344436f..e6064d714e 100644
--- a/wcfsetup/install/files/lib/data/bbcode/media/provider/BBCodeMediaProviderEditor.class.php
+++ b/wcfsetup/install/files/lib/data/bbcode/media/provider/BBCodeMediaProviderEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\bbcode\media\provider;
 use wcf\data\DatabaseObjectEditor;
 use wcf\data\IEditableCachedObject;
diff --git a/wcfsetup/install/files/lib/data/bbcode/media/provider/BBCodeMediaProviderList.class.php b/wcfsetup/install/files/lib/data/bbcode/media/provider/BBCodeMediaProviderList.class.php
index eed333104e..d424445945 100644
--- a/wcfsetup/install/files/lib/data/bbcode/media/provider/BBCodeMediaProviderList.class.php
+++ b/wcfsetup/install/files/lib/data/bbcode/media/provider/BBCodeMediaProviderList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\bbcode\media\provider;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/box/Box.class.php b/wcfsetup/install/files/lib/data/box/Box.class.php
index 14ed02f8fc..6482616700 100644
--- a/wcfsetup/install/files/lib/data/box/Box.class.php
+++ b/wcfsetup/install/files/lib/data/box/Box.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\box;
 use wcf\data\box\content\BoxContent;
 use wcf\data\condition\Condition;
diff --git a/wcfsetup/install/files/lib/data/box/BoxAction.class.php b/wcfsetup/install/files/lib/data/box/BoxAction.class.php
index eea00a9144..4e3312f7d6 100644
--- a/wcfsetup/install/files/lib/data/box/BoxAction.class.php
+++ b/wcfsetup/install/files/lib/data/box/BoxAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\box;
 use wcf\data\box\content\BoxContent;
 use wcf\data\box\content\BoxContentEditor;
diff --git a/wcfsetup/install/files/lib/data/box/BoxEditor.class.php b/wcfsetup/install/files/lib/data/box/BoxEditor.class.php
index 305c535eba..326b9bb1ba 100644
--- a/wcfsetup/install/files/lib/data/box/BoxEditor.class.php
+++ b/wcfsetup/install/files/lib/data/box/BoxEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\box;
 use wcf\data\DatabaseObjectEditor;
 
diff --git a/wcfsetup/install/files/lib/data/box/BoxList.class.php b/wcfsetup/install/files/lib/data/box/BoxList.class.php
index aa5dabe8e8..4d576f765b 100644
--- a/wcfsetup/install/files/lib/data/box/BoxList.class.php
+++ b/wcfsetup/install/files/lib/data/box/BoxList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\box;
 use wcf\data\box\content\BoxContentList;
 use wcf\data\DatabaseObjectList;
diff --git a/wcfsetup/install/files/lib/data/box/BoxVersionTracker.class.php b/wcfsetup/install/files/lib/data/box/BoxVersionTracker.class.php
index 49035ec861..93550753d4 100644
--- a/wcfsetup/install/files/lib/data/box/BoxVersionTracker.class.php
+++ b/wcfsetup/install/files/lib/data/box/BoxVersionTracker.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\box;
 use wcf\data\box\content\BoxContent;
 use wcf\data\DatabaseObjectDecorator;
diff --git a/wcfsetup/install/files/lib/data/box/content/BoxContent.class.php b/wcfsetup/install/files/lib/data/box/content/BoxContent.class.php
index d4ebe4e274..f53a6152ff 100644
--- a/wcfsetup/install/files/lib/data/box/content/BoxContent.class.php
+++ b/wcfsetup/install/files/lib/data/box/content/BoxContent.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\box\content;
 use wcf\data\media\ViewableMedia;
 use wcf\data\DatabaseObject;
diff --git a/wcfsetup/install/files/lib/data/box/content/BoxContentAction.class.php b/wcfsetup/install/files/lib/data/box/content/BoxContentAction.class.php
index 852e0ff120..56bea16119 100644
--- a/wcfsetup/install/files/lib/data/box/content/BoxContentAction.class.php
+++ b/wcfsetup/install/files/lib/data/box/content/BoxContentAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\box\content;
 use wcf\data\AbstractDatabaseObjectAction;
 
diff --git a/wcfsetup/install/files/lib/data/box/content/BoxContentEditor.class.php b/wcfsetup/install/files/lib/data/box/content/BoxContentEditor.class.php
index 4428b50d4a..c057724a21 100644
--- a/wcfsetup/install/files/lib/data/box/content/BoxContentEditor.class.php
+++ b/wcfsetup/install/files/lib/data/box/content/BoxContentEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\box\content;
 use wcf\data\DatabaseObjectEditor;
 
diff --git a/wcfsetup/install/files/lib/data/box/content/BoxContentList.class.php b/wcfsetup/install/files/lib/data/box/content/BoxContentList.class.php
index e62ab08234..36838174e8 100644
--- a/wcfsetup/install/files/lib/data/box/content/BoxContentList.class.php
+++ b/wcfsetup/install/files/lib/data/box/content/BoxContentList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\box\content;
 use wcf\data\media\ViewableMediaList;
 use wcf\data\DatabaseObjectList;
diff --git a/wcfsetup/install/files/lib/data/captcha/question/CaptchaQuestion.class.php b/wcfsetup/install/files/lib/data/captcha/question/CaptchaQuestion.class.php
index 764b1023d4..9b7fe065c6 100644
--- a/wcfsetup/install/files/lib/data/captcha/question/CaptchaQuestion.class.php
+++ b/wcfsetup/install/files/lib/data/captcha/question/CaptchaQuestion.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\captcha\question;
 use wcf\data\DatabaseObject;
 use wcf\system\Regex;
diff --git a/wcfsetup/install/files/lib/data/captcha/question/CaptchaQuestionAction.class.php b/wcfsetup/install/files/lib/data/captcha/question/CaptchaQuestionAction.class.php
index 88b05e1c49..99389fc20b 100644
--- a/wcfsetup/install/files/lib/data/captcha/question/CaptchaQuestionAction.class.php
+++ b/wcfsetup/install/files/lib/data/captcha/question/CaptchaQuestionAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\captcha\question;
 use wcf\data\AbstractDatabaseObjectAction;
 use wcf\data\IToggleAction;
diff --git a/wcfsetup/install/files/lib/data/captcha/question/CaptchaQuestionEditor.class.php b/wcfsetup/install/files/lib/data/captcha/question/CaptchaQuestionEditor.class.php
index e66ced888f..96e5dd86fc 100644
--- a/wcfsetup/install/files/lib/data/captcha/question/CaptchaQuestionEditor.class.php
+++ b/wcfsetup/install/files/lib/data/captcha/question/CaptchaQuestionEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\captcha\question;
 use wcf\data\DatabaseObjectEditor;
 use wcf\data\IEditableCachedObject;
diff --git a/wcfsetup/install/files/lib/data/captcha/question/CaptchaQuestionList.class.php b/wcfsetup/install/files/lib/data/captcha/question/CaptchaQuestionList.class.php
index af7073d06c..94e2be9921 100644
--- a/wcfsetup/install/files/lib/data/captcha/question/CaptchaQuestionList.class.php
+++ b/wcfsetup/install/files/lib/data/captcha/question/CaptchaQuestionList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\captcha\question;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/category/AbstractDecoratedCategory.class.php b/wcfsetup/install/files/lib/data/category/AbstractDecoratedCategory.class.php
index 03d0aba6c6..b730c6fdf8 100644
--- a/wcfsetup/install/files/lib/data/category/AbstractDecoratedCategory.class.php
+++ b/wcfsetup/install/files/lib/data/category/AbstractDecoratedCategory.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\category;
 use wcf\data\DatabaseObjectDecorator;
 use wcf\system\category\CategoryHandler;
diff --git a/wcfsetup/install/files/lib/data/category/Category.class.php b/wcfsetup/install/files/lib/data/category/Category.class.php
index ad31502eba..b8c535e858 100644
--- a/wcfsetup/install/files/lib/data/category/Category.class.php
+++ b/wcfsetup/install/files/lib/data/category/Category.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\category;
 use wcf\data\object\type\ObjectType;
 use wcf\data\user\User;
diff --git a/wcfsetup/install/files/lib/data/category/CategoryAction.class.php b/wcfsetup/install/files/lib/data/category/CategoryAction.class.php
index f9d931ce22..3a673c5dd0 100644
--- a/wcfsetup/install/files/lib/data/category/CategoryAction.class.php
+++ b/wcfsetup/install/files/lib/data/category/CategoryAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\category;
 use wcf\data\language\item\LanguageItemAction;
 use wcf\data\AbstractDatabaseObjectAction;
diff --git a/wcfsetup/install/files/lib/data/category/CategoryEditor.class.php b/wcfsetup/install/files/lib/data/category/CategoryEditor.class.php
index 2af6030ee4..1d1137b503 100644
--- a/wcfsetup/install/files/lib/data/category/CategoryEditor.class.php
+++ b/wcfsetup/install/files/lib/data/category/CategoryEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\category;
 use wcf\data\DatabaseObjectEditor;
 use wcf\data\IEditableCachedObject;
diff --git a/wcfsetup/install/files/lib/data/category/CategoryList.class.php b/wcfsetup/install/files/lib/data/category/CategoryList.class.php
index 58a4d80c8a..6472355cb0 100644
--- a/wcfsetup/install/files/lib/data/category/CategoryList.class.php
+++ b/wcfsetup/install/files/lib/data/category/CategoryList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\category;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/category/CategoryNode.class.php b/wcfsetup/install/files/lib/data/category/CategoryNode.class.php
index e3a59b9040..20de4e3b51 100644
--- a/wcfsetup/install/files/lib/data/category/CategoryNode.class.php
+++ b/wcfsetup/install/files/lib/data/category/CategoryNode.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\category;
 use wcf\data\DatabaseObjectDecorator;
 
diff --git a/wcfsetup/install/files/lib/data/category/CategoryNodeTree.class.php b/wcfsetup/install/files/lib/data/category/CategoryNodeTree.class.php
index 0e20d62c4a..4b84ef0746 100644
--- a/wcfsetup/install/files/lib/data/category/CategoryNodeTree.class.php
+++ b/wcfsetup/install/files/lib/data/category/CategoryNodeTree.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\category;
 use wcf\system\category\CategoryHandler;
 use wcf\system\exception\SystemException;
diff --git a/wcfsetup/install/files/lib/data/category/UncachedCategoryNodeTree.class.php b/wcfsetup/install/files/lib/data/category/UncachedCategoryNodeTree.class.php
index b9c905b73c..0ee7eef06e 100644
--- a/wcfsetup/install/files/lib/data/category/UncachedCategoryNodeTree.class.php
+++ b/wcfsetup/install/files/lib/data/category/UncachedCategoryNodeTree.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\category;
 use wcf\system\category\CategoryHandler;
 
diff --git a/wcfsetup/install/files/lib/data/clipboard/action/ClipboardAction.class.php b/wcfsetup/install/files/lib/data/clipboard/action/ClipboardAction.class.php
index 59bae22a05..5b63d981e4 100644
--- a/wcfsetup/install/files/lib/data/clipboard/action/ClipboardAction.class.php
+++ b/wcfsetup/install/files/lib/data/clipboard/action/ClipboardAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\clipboard\action;
 use wcf\data\DatabaseObject;
 
diff --git a/wcfsetup/install/files/lib/data/clipboard/action/ClipboardActionAction.class.php b/wcfsetup/install/files/lib/data/clipboard/action/ClipboardActionAction.class.php
index 94d10536b2..c592e87775 100644
--- a/wcfsetup/install/files/lib/data/clipboard/action/ClipboardActionAction.class.php
+++ b/wcfsetup/install/files/lib/data/clipboard/action/ClipboardActionAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\clipboard\action;
 use wcf\data\AbstractDatabaseObjectAction;
 
diff --git a/wcfsetup/install/files/lib/data/clipboard/action/ClipboardActionEditor.class.php b/wcfsetup/install/files/lib/data/clipboard/action/ClipboardActionEditor.class.php
index 71a026b172..4ee5d27090 100644
--- a/wcfsetup/install/files/lib/data/clipboard/action/ClipboardActionEditor.class.php
+++ b/wcfsetup/install/files/lib/data/clipboard/action/ClipboardActionEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\clipboard\action;
 use wcf\data\DatabaseObjectEditor;
 
diff --git a/wcfsetup/install/files/lib/data/clipboard/action/ClipboardActionList.class.php b/wcfsetup/install/files/lib/data/clipboard/action/ClipboardActionList.class.php
index b50c721033..aebc711a49 100644
--- a/wcfsetup/install/files/lib/data/clipboard/action/ClipboardActionList.class.php
+++ b/wcfsetup/install/files/lib/data/clipboard/action/ClipboardActionList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\clipboard\action;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/clipboard/item/ClipboardItemAction.class.php b/wcfsetup/install/files/lib/data/clipboard/item/ClipboardItemAction.class.php
index 6946b11a40..f424d527fa 100644
--- a/wcfsetup/install/files/lib/data/clipboard/item/ClipboardItemAction.class.php
+++ b/wcfsetup/install/files/lib/data/clipboard/item/ClipboardItemAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\clipboard\item;
 use wcf\data\AbstractDatabaseObjectAction;
 use wcf\system\clipboard\ClipboardEditorItem;
diff --git a/wcfsetup/install/files/lib/data/comment/Comment.class.php b/wcfsetup/install/files/lib/data/comment/Comment.class.php
index bebb1e6430..3a26b3acb4 100644
--- a/wcfsetup/install/files/lib/data/comment/Comment.class.php
+++ b/wcfsetup/install/files/lib/data/comment/Comment.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\comment;
 use wcf\data\DatabaseObject;
 use wcf\data\IMessage;
diff --git a/wcfsetup/install/files/lib/data/comment/CommentAction.class.php b/wcfsetup/install/files/lib/data/comment/CommentAction.class.php
index 9c389874fb..9d6e6156f6 100644
--- a/wcfsetup/install/files/lib/data/comment/CommentAction.class.php
+++ b/wcfsetup/install/files/lib/data/comment/CommentAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\comment;
 use wcf\data\comment\response\CommentResponse;
 use wcf\data\comment\response\CommentResponseAction;
diff --git a/wcfsetup/install/files/lib/data/comment/CommentEditor.class.php b/wcfsetup/install/files/lib/data/comment/CommentEditor.class.php
index e9933dbcdd..8a6d88fbb6 100644
--- a/wcfsetup/install/files/lib/data/comment/CommentEditor.class.php
+++ b/wcfsetup/install/files/lib/data/comment/CommentEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\comment;
 use wcf\data\DatabaseObjectEditor;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/data/comment/CommentList.class.php b/wcfsetup/install/files/lib/data/comment/CommentList.class.php
index 178d0f5975..f48f5db569 100644
--- a/wcfsetup/install/files/lib/data/comment/CommentList.class.php
+++ b/wcfsetup/install/files/lib/data/comment/CommentList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\comment;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/comment/LikeableComment.class.php b/wcfsetup/install/files/lib/data/comment/LikeableComment.class.php
index f3d06a927e..8a842a6136 100644
--- a/wcfsetup/install/files/lib/data/comment/LikeableComment.class.php
+++ b/wcfsetup/install/files/lib/data/comment/LikeableComment.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\comment;
 use wcf\data\like\object\AbstractLikeObject;
 use wcf\data\like\Like;
diff --git a/wcfsetup/install/files/lib/data/comment/LikeableCommentProvider.class.php b/wcfsetup/install/files/lib/data/comment/LikeableCommentProvider.class.php
index e455595212..828fe78b64 100644
--- a/wcfsetup/install/files/lib/data/comment/LikeableCommentProvider.class.php
+++ b/wcfsetup/install/files/lib/data/comment/LikeableCommentProvider.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\comment;
 use wcf\data\like\object\ILikeObject;
 use wcf\data\like\ILikeObjectTypeProvider;
diff --git a/wcfsetup/install/files/lib/data/comment/StructuredComment.class.php b/wcfsetup/install/files/lib/data/comment/StructuredComment.class.php
index c111032f6a..db474a9f20 100644
--- a/wcfsetup/install/files/lib/data/comment/StructuredComment.class.php
+++ b/wcfsetup/install/files/lib/data/comment/StructuredComment.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\comment;
 use wcf\data\comment\response\StructuredCommentResponse;
 use wcf\data\user\UserProfile;
diff --git a/wcfsetup/install/files/lib/data/comment/StructuredCommentList.class.php b/wcfsetup/install/files/lib/data/comment/StructuredCommentList.class.php
index 1a8bada631..e38ecd9b0c 100644
--- a/wcfsetup/install/files/lib/data/comment/StructuredCommentList.class.php
+++ b/wcfsetup/install/files/lib/data/comment/StructuredCommentList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\comment;
 use wcf\data\comment\response\CommentResponseList;
 use wcf\data\comment\response\StructuredCommentResponse;
diff --git a/wcfsetup/install/files/lib/data/comment/ViewableComment.class.php b/wcfsetup/install/files/lib/data/comment/ViewableComment.class.php
index 375d1c2363..99ebc8dd64 100644
--- a/wcfsetup/install/files/lib/data/comment/ViewableComment.class.php
+++ b/wcfsetup/install/files/lib/data/comment/ViewableComment.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\comment;
 use wcf\data\user\UserProfile;
 use wcf\data\DatabaseObjectDecorator;
diff --git a/wcfsetup/install/files/lib/data/comment/ViewableCommentList.class.php b/wcfsetup/install/files/lib/data/comment/ViewableCommentList.class.php
index a3b8337b18..04d29b3411 100644
--- a/wcfsetup/install/files/lib/data/comment/ViewableCommentList.class.php
+++ b/wcfsetup/install/files/lib/data/comment/ViewableCommentList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\comment;
 use wcf\system\cache\runtime\UserProfileRuntimeCache;
 
diff --git a/wcfsetup/install/files/lib/data/comment/response/CommentResponse.class.php b/wcfsetup/install/files/lib/data/comment/response/CommentResponse.class.php
index a36aeca4cf..46d7e5b956 100644
--- a/wcfsetup/install/files/lib/data/comment/response/CommentResponse.class.php
+++ b/wcfsetup/install/files/lib/data/comment/response/CommentResponse.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\comment\response;
 use wcf\data\comment\Comment;
 use wcf\data\DatabaseObject;
diff --git a/wcfsetup/install/files/lib/data/comment/response/CommentResponseAction.class.php b/wcfsetup/install/files/lib/data/comment/response/CommentResponseAction.class.php
index e86543639d..ad76f40ea8 100644
--- a/wcfsetup/install/files/lib/data/comment/response/CommentResponseAction.class.php
+++ b/wcfsetup/install/files/lib/data/comment/response/CommentResponseAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\comment\response;
 use wcf\data\comment\Comment;
 use wcf\data\comment\CommentEditor;
diff --git a/wcfsetup/install/files/lib/data/comment/response/CommentResponseEditor.class.php b/wcfsetup/install/files/lib/data/comment/response/CommentResponseEditor.class.php
index d2d5d17ffe..4c927986c8 100644
--- a/wcfsetup/install/files/lib/data/comment/response/CommentResponseEditor.class.php
+++ b/wcfsetup/install/files/lib/data/comment/response/CommentResponseEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\comment\response;
 use wcf\data\DatabaseObjectEditor;
 
diff --git a/wcfsetup/install/files/lib/data/comment/response/CommentResponseList.class.php b/wcfsetup/install/files/lib/data/comment/response/CommentResponseList.class.php
index 5fd85031e1..0286cd2f96 100644
--- a/wcfsetup/install/files/lib/data/comment/response/CommentResponseList.class.php
+++ b/wcfsetup/install/files/lib/data/comment/response/CommentResponseList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\comment\response;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/comment/response/LikeableCommentResponse.class.php b/wcfsetup/install/files/lib/data/comment/response/LikeableCommentResponse.class.php
index 0b1fc8dc80..1b5c68220e 100644
--- a/wcfsetup/install/files/lib/data/comment/response/LikeableCommentResponse.class.php
+++ b/wcfsetup/install/files/lib/data/comment/response/LikeableCommentResponse.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\comment\response;
 use wcf\data\comment\Comment;
 use wcf\data\like\object\AbstractLikeObject;
diff --git a/wcfsetup/install/files/lib/data/comment/response/LikeableCommentResponseProvider.class.php b/wcfsetup/install/files/lib/data/comment/response/LikeableCommentResponseProvider.class.php
index 42a4e50056..5f7ecb5458 100644
--- a/wcfsetup/install/files/lib/data/comment/response/LikeableCommentResponseProvider.class.php
+++ b/wcfsetup/install/files/lib/data/comment/response/LikeableCommentResponseProvider.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\comment\response;
 use wcf\data\comment\Comment;
 use wcf\data\like\object\ILikeObject;
diff --git a/wcfsetup/install/files/lib/data/comment/response/StructuredCommentResponse.class.php b/wcfsetup/install/files/lib/data/comment/response/StructuredCommentResponse.class.php
index 9deda53850..6e7a6f15d8 100644
--- a/wcfsetup/install/files/lib/data/comment/response/StructuredCommentResponse.class.php
+++ b/wcfsetup/install/files/lib/data/comment/response/StructuredCommentResponse.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\comment\response;
 use wcf\data\user\UserProfile;
 use wcf\data\DatabaseObjectDecorator;
diff --git a/wcfsetup/install/files/lib/data/comment/response/StructuredCommentResponseList.class.php b/wcfsetup/install/files/lib/data/comment/response/StructuredCommentResponseList.class.php
index 21402bff1e..855f2ed602 100644
--- a/wcfsetup/install/files/lib/data/comment/response/StructuredCommentResponseList.class.php
+++ b/wcfsetup/install/files/lib/data/comment/response/StructuredCommentResponseList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\comment\response;
 use wcf\data\comment\Comment;
 use wcf\data\like\object\LikeObject;
diff --git a/wcfsetup/install/files/lib/data/comment/response/ViewableCommentResponse.class.php b/wcfsetup/install/files/lib/data/comment/response/ViewableCommentResponse.class.php
index 9d0130ff2a..d2f2fc33c8 100644
--- a/wcfsetup/install/files/lib/data/comment/response/ViewableCommentResponse.class.php
+++ b/wcfsetup/install/files/lib/data/comment/response/ViewableCommentResponse.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\comment\response;
 use wcf\data\user\UserProfile;
 use wcf\data\DatabaseObjectDecorator;
diff --git a/wcfsetup/install/files/lib/data/comment/response/ViewableCommentResponseList.class.php b/wcfsetup/install/files/lib/data/comment/response/ViewableCommentResponseList.class.php
index 55c04d4f38..562cc84d9c 100644
--- a/wcfsetup/install/files/lib/data/comment/response/ViewableCommentResponseList.class.php
+++ b/wcfsetup/install/files/lib/data/comment/response/ViewableCommentResponseList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\comment\response;
 use wcf\system\cache\runtime\UserProfileRuntimeCache;
 
diff --git a/wcfsetup/install/files/lib/data/condition/Condition.class.php b/wcfsetup/install/files/lib/data/condition/Condition.class.php
index 27bd6890a0..1f1b19e95b 100644
--- a/wcfsetup/install/files/lib/data/condition/Condition.class.php
+++ b/wcfsetup/install/files/lib/data/condition/Condition.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\condition;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\data\DatabaseObject;
diff --git a/wcfsetup/install/files/lib/data/condition/ConditionAction.class.php b/wcfsetup/install/files/lib/data/condition/ConditionAction.class.php
index 9fd753acc4..95e11e75f5 100644
--- a/wcfsetup/install/files/lib/data/condition/ConditionAction.class.php
+++ b/wcfsetup/install/files/lib/data/condition/ConditionAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\condition;
 use wcf\data\AbstractDatabaseObjectAction;
 
diff --git a/wcfsetup/install/files/lib/data/condition/ConditionEditor.class.php b/wcfsetup/install/files/lib/data/condition/ConditionEditor.class.php
index 5d23b0ca6e..1dddb7c1cf 100644
--- a/wcfsetup/install/files/lib/data/condition/ConditionEditor.class.php
+++ b/wcfsetup/install/files/lib/data/condition/ConditionEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\condition;
 use wcf\data\DatabaseObjectEditor;
 use wcf\data\IEditableCachedObject;
diff --git a/wcfsetup/install/files/lib/data/condition/ConditionList.class.php b/wcfsetup/install/files/lib/data/condition/ConditionList.class.php
index 4185c64be2..d5e27dff8a 100644
--- a/wcfsetup/install/files/lib/data/condition/ConditionList.class.php
+++ b/wcfsetup/install/files/lib/data/condition/ConditionList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\condition;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/contact/option/ContactOption.class.php b/wcfsetup/install/files/lib/data/contact/option/ContactOption.class.php
index b193c1010e..31ff7c8851 100644
--- a/wcfsetup/install/files/lib/data/contact/option/ContactOption.class.php
+++ b/wcfsetup/install/files/lib/data/contact/option/ContactOption.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\contact\option;
 use wcf\data\custom\option\CustomOption;
 
diff --git a/wcfsetup/install/files/lib/data/contact/option/ContactOptionAction.class.php b/wcfsetup/install/files/lib/data/contact/option/ContactOptionAction.class.php
index 349ae95e4d..f3b36a9475 100644
--- a/wcfsetup/install/files/lib/data/contact/option/ContactOptionAction.class.php
+++ b/wcfsetup/install/files/lib/data/contact/option/ContactOptionAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\contact\option;
 use wcf\data\contact\recipient\ContactRecipient;
 use wcf\data\custom\option\CustomOptionAction;
diff --git a/wcfsetup/install/files/lib/data/contact/option/ContactOptionEditor.class.php b/wcfsetup/install/files/lib/data/contact/option/ContactOptionEditor.class.php
index 4f2a807929..d40ed284c7 100644
--- a/wcfsetup/install/files/lib/data/contact/option/ContactOptionEditor.class.php
+++ b/wcfsetup/install/files/lib/data/contact/option/ContactOptionEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\contact\option;
 use wcf\data\custom\option\CustomOptionEditor;
 use wcf\data\IEditableCachedObject;
diff --git a/wcfsetup/install/files/lib/data/contact/option/ContactOptionList.class.php b/wcfsetup/install/files/lib/data/contact/option/ContactOptionList.class.php
index 9def2b8051..fd5fe30975 100644
--- a/wcfsetup/install/files/lib/data/contact/option/ContactOptionList.class.php
+++ b/wcfsetup/install/files/lib/data/contact/option/ContactOptionList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\contact\option;
 use wcf\data\custom\option\CustomOptionList;
 
diff --git a/wcfsetup/install/files/lib/data/contact/recipient/ContactRecipient.class.php b/wcfsetup/install/files/lib/data/contact/recipient/ContactRecipient.class.php
index baa8cd13ae..e704754676 100644
--- a/wcfsetup/install/files/lib/data/contact/recipient/ContactRecipient.class.php
+++ b/wcfsetup/install/files/lib/data/contact/recipient/ContactRecipient.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\contact\recipient;
 use wcf\data\DatabaseObject;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/data/contact/recipient/ContactRecipientAction.class.php b/wcfsetup/install/files/lib/data/contact/recipient/ContactRecipientAction.class.php
index 3be29a8acb..d554315f63 100644
--- a/wcfsetup/install/files/lib/data/contact/recipient/ContactRecipientAction.class.php
+++ b/wcfsetup/install/files/lib/data/contact/recipient/ContactRecipientAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\contact\recipient;
 use wcf\data\AbstractDatabaseObjectAction;
 use wcf\data\ISortableAction;
diff --git a/wcfsetup/install/files/lib/data/contact/recipient/ContactRecipientEditor.class.php b/wcfsetup/install/files/lib/data/contact/recipient/ContactRecipientEditor.class.php
index 37ce5ddbc0..30a51e600a 100644
--- a/wcfsetup/install/files/lib/data/contact/recipient/ContactRecipientEditor.class.php
+++ b/wcfsetup/install/files/lib/data/contact/recipient/ContactRecipientEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\contact\recipient;
 use wcf\data\DatabaseObjectEditor;
 
diff --git a/wcfsetup/install/files/lib/data/contact/recipient/ContactRecipientList.class.php b/wcfsetup/install/files/lib/data/contact/recipient/ContactRecipientList.class.php
index 6ea5658f27..9d39b9e522 100644
--- a/wcfsetup/install/files/lib/data/contact/recipient/ContactRecipientList.class.php
+++ b/wcfsetup/install/files/lib/data/contact/recipient/ContactRecipientList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\contact\recipient;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/core/object/CoreObject.class.php b/wcfsetup/install/files/lib/data/core/object/CoreObject.class.php
index 9340d46d36..710b2e3c3b 100644
--- a/wcfsetup/install/files/lib/data/core/object/CoreObject.class.php
+++ b/wcfsetup/install/files/lib/data/core/object/CoreObject.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\core\object;
 use wcf\data\DatabaseObject;
 
diff --git a/wcfsetup/install/files/lib/data/core/object/CoreObjectAction.class.php b/wcfsetup/install/files/lib/data/core/object/CoreObjectAction.class.php
index a6b84af12a..887ab58d2e 100644
--- a/wcfsetup/install/files/lib/data/core/object/CoreObjectAction.class.php
+++ b/wcfsetup/install/files/lib/data/core/object/CoreObjectAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\core\object;
 use wcf\data\AbstractDatabaseObjectAction;
 
diff --git a/wcfsetup/install/files/lib/data/core/object/CoreObjectEditor.class.php b/wcfsetup/install/files/lib/data/core/object/CoreObjectEditor.class.php
index 0096966998..1d0183982f 100644
--- a/wcfsetup/install/files/lib/data/core/object/CoreObjectEditor.class.php
+++ b/wcfsetup/install/files/lib/data/core/object/CoreObjectEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\core\object;
 use wcf\data\DatabaseObjectEditor;
 
diff --git a/wcfsetup/install/files/lib/data/core/object/CoreObjectList.class.php b/wcfsetup/install/files/lib/data/core/object/CoreObjectList.class.php
index 2b75fb949f..5a9a680a1c 100644
--- a/wcfsetup/install/files/lib/data/core/object/CoreObjectList.class.php
+++ b/wcfsetup/install/files/lib/data/core/object/CoreObjectList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\core\object;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/cronjob/Cronjob.class.php b/wcfsetup/install/files/lib/data/cronjob/Cronjob.class.php
index 57d562a55b..2272dfb642 100644
--- a/wcfsetup/install/files/lib/data/cronjob/Cronjob.class.php
+++ b/wcfsetup/install/files/lib/data/cronjob/Cronjob.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\cronjob;
 use wcf\data\DatabaseObject;
 use wcf\data\TDatabaseObjectOptions;
diff --git a/wcfsetup/install/files/lib/data/cronjob/CronjobAction.class.php b/wcfsetup/install/files/lib/data/cronjob/CronjobAction.class.php
index db5e383a49..5c05e42023 100644
--- a/wcfsetup/install/files/lib/data/cronjob/CronjobAction.class.php
+++ b/wcfsetup/install/files/lib/data/cronjob/CronjobAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\cronjob;
 use wcf\data\cronjob\log\CronjobLogEditor;
 use wcf\data\user\User;
diff --git a/wcfsetup/install/files/lib/data/cronjob/CronjobEditor.class.php b/wcfsetup/install/files/lib/data/cronjob/CronjobEditor.class.php
index 2996d37f2e..836169a5fa 100644
--- a/wcfsetup/install/files/lib/data/cronjob/CronjobEditor.class.php
+++ b/wcfsetup/install/files/lib/data/cronjob/CronjobEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\cronjob;
 use wcf\data\language\category\LanguageCategory;
 use wcf\data\language\LanguageList;
diff --git a/wcfsetup/install/files/lib/data/cronjob/CronjobList.class.php b/wcfsetup/install/files/lib/data/cronjob/CronjobList.class.php
index a6e10ce4db..3633ecb088 100644
--- a/wcfsetup/install/files/lib/data/cronjob/CronjobList.class.php
+++ b/wcfsetup/install/files/lib/data/cronjob/CronjobList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\cronjob;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/cronjob/log/CronjobLog.class.php b/wcfsetup/install/files/lib/data/cronjob/log/CronjobLog.class.php
index 8093d8a00e..b019a46cb8 100644
--- a/wcfsetup/install/files/lib/data/cronjob/log/CronjobLog.class.php
+++ b/wcfsetup/install/files/lib/data/cronjob/log/CronjobLog.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\cronjob\log;
 use wcf\data\DatabaseObject;
 
diff --git a/wcfsetup/install/files/lib/data/cronjob/log/CronjobLogAction.class.php b/wcfsetup/install/files/lib/data/cronjob/log/CronjobLogAction.class.php
index c3d88cec96..22b6960544 100644
--- a/wcfsetup/install/files/lib/data/cronjob/log/CronjobLogAction.class.php
+++ b/wcfsetup/install/files/lib/data/cronjob/log/CronjobLogAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\cronjob\log;
 use wcf\data\AbstractDatabaseObjectAction;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/data/cronjob/log/CronjobLogEditor.class.php b/wcfsetup/install/files/lib/data/cronjob/log/CronjobLogEditor.class.php
index f1b16b3786..c7c6e63b55 100644
--- a/wcfsetup/install/files/lib/data/cronjob/log/CronjobLogEditor.class.php
+++ b/wcfsetup/install/files/lib/data/cronjob/log/CronjobLogEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\cronjob\log;
 use wcf\data\DatabaseObjectEditor;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/data/cronjob/log/CronjobLogList.class.php b/wcfsetup/install/files/lib/data/cronjob/log/CronjobLogList.class.php
index 7b23f01688..3b642f20d2 100644
--- a/wcfsetup/install/files/lib/data/cronjob/log/CronjobLogList.class.php
+++ b/wcfsetup/install/files/lib/data/cronjob/log/CronjobLogList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\cronjob\log;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/custom/option/CustomOption.class.php b/wcfsetup/install/files/lib/data/custom/option/CustomOption.class.php
index b6f5850e92..dc99686f6c 100644
--- a/wcfsetup/install/files/lib/data/custom/option/CustomOption.class.php
+++ b/wcfsetup/install/files/lib/data/custom/option/CustomOption.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\custom\option;
 use wcf\data\language\Language;
 use wcf\data\option\Option;
diff --git a/wcfsetup/install/files/lib/data/custom/option/CustomOptionAction.class.php b/wcfsetup/install/files/lib/data/custom/option/CustomOptionAction.class.php
index 24e4645880..cba73d476b 100644
--- a/wcfsetup/install/files/lib/data/custom/option/CustomOptionAction.class.php
+++ b/wcfsetup/install/files/lib/data/custom/option/CustomOptionAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\custom\option;
 use wcf\data\AbstractDatabaseObjectAction;
 use wcf\data\IToggleAction;
diff --git a/wcfsetup/install/files/lib/data/custom/option/CustomOptionEditor.class.php b/wcfsetup/install/files/lib/data/custom/option/CustomOptionEditor.class.php
index 71bdba55bc..a31b0fd20a 100644
--- a/wcfsetup/install/files/lib/data/custom/option/CustomOptionEditor.class.php
+++ b/wcfsetup/install/files/lib/data/custom/option/CustomOptionEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\custom\option;
 use wcf\data\DatabaseObjectEditor;
 
diff --git a/wcfsetup/install/files/lib/data/custom/option/CustomOptionList.class.php b/wcfsetup/install/files/lib/data/custom/option/CustomOptionList.class.php
index 23b6eb7ab0..cde8864074 100644
--- a/wcfsetup/install/files/lib/data/custom/option/CustomOptionList.class.php
+++ b/wcfsetup/install/files/lib/data/custom/option/CustomOptionList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\custom\option;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/devtools/project/DevtoolsProject.class.php b/wcfsetup/install/files/lib/data/devtools/project/DevtoolsProject.class.php
index 9119097d8d..291e21cd2a 100644
--- a/wcfsetup/install/files/lib/data/devtools/project/DevtoolsProject.class.php
+++ b/wcfsetup/install/files/lib/data/devtools/project/DevtoolsProject.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\devtools\project;
 use wcf\data\package\installation\plugin\PackageInstallationPluginList;
 use wcf\data\package\Package;
diff --git a/wcfsetup/install/files/lib/data/devtools/project/DevtoolsProjectAction.class.php b/wcfsetup/install/files/lib/data/devtools/project/DevtoolsProjectAction.class.php
index a6a1a1f10a..9c7ee4c1aa 100644
--- a/wcfsetup/install/files/lib/data/devtools/project/DevtoolsProjectAction.class.php
+++ b/wcfsetup/install/files/lib/data/devtools/project/DevtoolsProjectAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\devtools\project;
 use wcf\data\AbstractDatabaseObjectAction;
 use wcf\system\exception\IllegalLinkException;
diff --git a/wcfsetup/install/files/lib/data/devtools/project/DevtoolsProjectEditor.class.php b/wcfsetup/install/files/lib/data/devtools/project/DevtoolsProjectEditor.class.php
index 8fdc1a802a..d71ec5b3d2 100644
--- a/wcfsetup/install/files/lib/data/devtools/project/DevtoolsProjectEditor.class.php
+++ b/wcfsetup/install/files/lib/data/devtools/project/DevtoolsProjectEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\devtools\project;
 use wcf\data\DatabaseObjectEditor;
 
diff --git a/wcfsetup/install/files/lib/data/devtools/project/DevtoolsProjectList.class.php b/wcfsetup/install/files/lib/data/devtools/project/DevtoolsProjectList.class.php
index 3581776fdf..f62c21a251 100644
--- a/wcfsetup/install/files/lib/data/devtools/project/DevtoolsProjectList.class.php
+++ b/wcfsetup/install/files/lib/data/devtools/project/DevtoolsProjectList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\devtools\project;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/edit/history/entry/EditHistoryEntry.class.php b/wcfsetup/install/files/lib/data/edit/history/entry/EditHistoryEntry.class.php
index 92424a258b..b31c804d1e 100644
--- a/wcfsetup/install/files/lib/data/edit/history/entry/EditHistoryEntry.class.php
+++ b/wcfsetup/install/files/lib/data/edit/history/entry/EditHistoryEntry.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\edit\history\entry;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\data\DatabaseObject;
diff --git a/wcfsetup/install/files/lib/data/edit/history/entry/EditHistoryEntryAction.class.php b/wcfsetup/install/files/lib/data/edit/history/entry/EditHistoryEntryAction.class.php
index 3ec9b0aae3..c7f873cdfe 100644
--- a/wcfsetup/install/files/lib/data/edit/history/entry/EditHistoryEntryAction.class.php
+++ b/wcfsetup/install/files/lib/data/edit/history/entry/EditHistoryEntryAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\edit\history\entry;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\data\AbstractDatabaseObjectAction;
diff --git a/wcfsetup/install/files/lib/data/edit/history/entry/EditHistoryEntryEditor.class.php b/wcfsetup/install/files/lib/data/edit/history/entry/EditHistoryEntryEditor.class.php
index 4b7232f7e4..9977ba9a4c 100644
--- a/wcfsetup/install/files/lib/data/edit/history/entry/EditHistoryEntryEditor.class.php
+++ b/wcfsetup/install/files/lib/data/edit/history/entry/EditHistoryEntryEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\edit\history\entry;
 use wcf\data\DatabaseObjectEditor;
 
diff --git a/wcfsetup/install/files/lib/data/edit/history/entry/EditHistoryEntryList.class.php b/wcfsetup/install/files/lib/data/edit/history/entry/EditHistoryEntryList.class.php
index 88ca6eeb3a..a907d06b9c 100644
--- a/wcfsetup/install/files/lib/data/edit/history/entry/EditHistoryEntryList.class.php
+++ b/wcfsetup/install/files/lib/data/edit/history/entry/EditHistoryEntryList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\edit\history\entry;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/event/listener/EventListener.class.php b/wcfsetup/install/files/lib/data/event/listener/EventListener.class.php
index 2e8d837f84..c73bcddfc4 100644
--- a/wcfsetup/install/files/lib/data/event/listener/EventListener.class.php
+++ b/wcfsetup/install/files/lib/data/event/listener/EventListener.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\event\listener;
 use wcf\data\DatabaseObject;
 use wcf\data\TDatabaseObjectOptions;
diff --git a/wcfsetup/install/files/lib/data/event/listener/EventListenerAction.class.php b/wcfsetup/install/files/lib/data/event/listener/EventListenerAction.class.php
index a1d8e6bf1b..db3d7c3fb3 100644
--- a/wcfsetup/install/files/lib/data/event/listener/EventListenerAction.class.php
+++ b/wcfsetup/install/files/lib/data/event/listener/EventListenerAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\event\listener;
 use wcf\data\AbstractDatabaseObjectAction;
 
diff --git a/wcfsetup/install/files/lib/data/event/listener/EventListenerEditor.class.php b/wcfsetup/install/files/lib/data/event/listener/EventListenerEditor.class.php
index ece0ec424e..bdf4ed122c 100644
--- a/wcfsetup/install/files/lib/data/event/listener/EventListenerEditor.class.php
+++ b/wcfsetup/install/files/lib/data/event/listener/EventListenerEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\event\listener;
 use wcf\data\DatabaseObjectEditor;
 
diff --git a/wcfsetup/install/files/lib/data/event/listener/EventListenerList.class.php b/wcfsetup/install/files/lib/data/event/listener/EventListenerList.class.php
index a2e9962acf..f63a2670a5 100644
--- a/wcfsetup/install/files/lib/data/event/listener/EventListenerList.class.php
+++ b/wcfsetup/install/files/lib/data/event/listener/EventListenerList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\event\listener;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/label/Label.class.php b/wcfsetup/install/files/lib/data/label/Label.class.php
index 56b8522580..aade1519ef 100644
--- a/wcfsetup/install/files/lib/data/label/Label.class.php
+++ b/wcfsetup/install/files/lib/data/label/Label.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\label;
 use wcf\data\DatabaseObject;
 use wcf\system\request\IRouteController;
diff --git a/wcfsetup/install/files/lib/data/label/LabelAction.class.php b/wcfsetup/install/files/lib/data/label/LabelAction.class.php
index 193c3a724a..e74d71920e 100644
--- a/wcfsetup/install/files/lib/data/label/LabelAction.class.php
+++ b/wcfsetup/install/files/lib/data/label/LabelAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\label;
 use wcf\data\language\item\LanguageItemAction;
 use wcf\data\AbstractDatabaseObjectAction;
diff --git a/wcfsetup/install/files/lib/data/label/LabelEditor.class.php b/wcfsetup/install/files/lib/data/label/LabelEditor.class.php
index 1f1969dfe1..9cbec1d604 100644
--- a/wcfsetup/install/files/lib/data/label/LabelEditor.class.php
+++ b/wcfsetup/install/files/lib/data/label/LabelEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\label;
 use wcf\data\DatabaseObjectEditor;
 use wcf\data\IEditableCachedObject;
diff --git a/wcfsetup/install/files/lib/data/label/LabelList.class.php b/wcfsetup/install/files/lib/data/label/LabelList.class.php
index 3d9672e1cc..0daef9ed08 100644
--- a/wcfsetup/install/files/lib/data/label/LabelList.class.php
+++ b/wcfsetup/install/files/lib/data/label/LabelList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\label;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/label/group/LabelGroup.class.php b/wcfsetup/install/files/lib/data/label/group/LabelGroup.class.php
index 3ce91d2b0d..0adc8c55fd 100644
--- a/wcfsetup/install/files/lib/data/label/group/LabelGroup.class.php
+++ b/wcfsetup/install/files/lib/data/label/group/LabelGroup.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\label\group;
 use wcf\data\DatabaseObject;
 use wcf\system\request\IRouteController;
diff --git a/wcfsetup/install/files/lib/data/label/group/LabelGroupAction.class.php b/wcfsetup/install/files/lib/data/label/group/LabelGroupAction.class.php
index 44116e3ab3..bd4ac5386a 100644
--- a/wcfsetup/install/files/lib/data/label/group/LabelGroupAction.class.php
+++ b/wcfsetup/install/files/lib/data/label/group/LabelGroupAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\label\group;
 use wcf\data\label\LabelAction;
 use wcf\data\language\item\LanguageItemAction;
diff --git a/wcfsetup/install/files/lib/data/label/group/LabelGroupEditor.class.php b/wcfsetup/install/files/lib/data/label/group/LabelGroupEditor.class.php
index f304d9d81e..8c514075f9 100644
--- a/wcfsetup/install/files/lib/data/label/group/LabelGroupEditor.class.php
+++ b/wcfsetup/install/files/lib/data/label/group/LabelGroupEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\label\group;
 use wcf\data\DatabaseObjectEditor;
 use wcf\data\IEditableCachedObject;
diff --git a/wcfsetup/install/files/lib/data/label/group/LabelGroupList.class.php b/wcfsetup/install/files/lib/data/label/group/LabelGroupList.class.php
index 20ae2d1abe..00aa3ce9eb 100644
--- a/wcfsetup/install/files/lib/data/label/group/LabelGroupList.class.php
+++ b/wcfsetup/install/files/lib/data/label/group/LabelGroupList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\label\group;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/label/group/ViewableLabelGroup.class.php b/wcfsetup/install/files/lib/data/label/group/ViewableLabelGroup.class.php
index 0222213355..17c2b2a264 100644
--- a/wcfsetup/install/files/lib/data/label/group/ViewableLabelGroup.class.php
+++ b/wcfsetup/install/files/lib/data/label/group/ViewableLabelGroup.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\label\group;
 use wcf\data\label\Label;
 use wcf\data\user\User;
diff --git a/wcfsetup/install/files/lib/data/language/Language.class.php b/wcfsetup/install/files/lib/data/language/Language.class.php
index 50188becc0..a2ca949e9f 100644
--- a/wcfsetup/install/files/lib/data/language/Language.class.php
+++ b/wcfsetup/install/files/lib/data/language/Language.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\language;
 use wcf\data\DatabaseObject;
 use wcf\system\language\LanguageFactory;
diff --git a/wcfsetup/install/files/lib/data/language/LanguageAction.class.php b/wcfsetup/install/files/lib/data/language/LanguageAction.class.php
index 8799a779a6..3855f0eeef 100644
--- a/wcfsetup/install/files/lib/data/language/LanguageAction.class.php
+++ b/wcfsetup/install/files/lib/data/language/LanguageAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\language;
 use wcf\data\AbstractDatabaseObjectAction;
 use wcf\data\IToggleAction;
diff --git a/wcfsetup/install/files/lib/data/language/LanguageEditor.class.php b/wcfsetup/install/files/lib/data/language/LanguageEditor.class.php
index 266b1a3937..c42e36927a 100644
--- a/wcfsetup/install/files/lib/data/language/LanguageEditor.class.php
+++ b/wcfsetup/install/files/lib/data/language/LanguageEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\language;
 use wcf\data\language\category\LanguageCategory;
 use wcf\data\language\category\LanguageCategoryEditor;
diff --git a/wcfsetup/install/files/lib/data/language/LanguageList.class.php b/wcfsetup/install/files/lib/data/language/LanguageList.class.php
index dc241cddf1..95c5e96598 100644
--- a/wcfsetup/install/files/lib/data/language/LanguageList.class.php
+++ b/wcfsetup/install/files/lib/data/language/LanguageList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\language;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/language/SetupLanguage.class.php b/wcfsetup/install/files/lib/data/language/SetupLanguage.class.php
index 4fddb14b89..deff31df01 100644
--- a/wcfsetup/install/files/lib/data/language/SetupLanguage.class.php
+++ b/wcfsetup/install/files/lib/data/language/SetupLanguage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\language;
 use wcf\system\exception\SystemException;
 use wcf\system\io\File;
diff --git a/wcfsetup/install/files/lib/data/language/category/LanguageCategory.class.php b/wcfsetup/install/files/lib/data/language/category/LanguageCategory.class.php
index 564bfef21f..f0fcd854fd 100644
--- a/wcfsetup/install/files/lib/data/language/category/LanguageCategory.class.php
+++ b/wcfsetup/install/files/lib/data/language/category/LanguageCategory.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\language\category;
 use wcf\data\DatabaseObject;
 
diff --git a/wcfsetup/install/files/lib/data/language/category/LanguageCategoryAction.class.php b/wcfsetup/install/files/lib/data/language/category/LanguageCategoryAction.class.php
index 20ffcb5c6f..0f34aee61b 100644
--- a/wcfsetup/install/files/lib/data/language/category/LanguageCategoryAction.class.php
+++ b/wcfsetup/install/files/lib/data/language/category/LanguageCategoryAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\language\category;
 use wcf\data\AbstractDatabaseObjectAction;
 
diff --git a/wcfsetup/install/files/lib/data/language/category/LanguageCategoryEditor.class.php b/wcfsetup/install/files/lib/data/language/category/LanguageCategoryEditor.class.php
index 6eef564298..8bd3bf7242 100644
--- a/wcfsetup/install/files/lib/data/language/category/LanguageCategoryEditor.class.php
+++ b/wcfsetup/install/files/lib/data/language/category/LanguageCategoryEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\language\category;
 use wcf\data\DatabaseObjectEditor;
 
diff --git a/wcfsetup/install/files/lib/data/language/category/LanguageCategoryList.class.php b/wcfsetup/install/files/lib/data/language/category/LanguageCategoryList.class.php
index 98bc4d11fa..8086677dca 100644
--- a/wcfsetup/install/files/lib/data/language/category/LanguageCategoryList.class.php
+++ b/wcfsetup/install/files/lib/data/language/category/LanguageCategoryList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\language\category;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/language/item/LanguageItem.class.php b/wcfsetup/install/files/lib/data/language/item/LanguageItem.class.php
index 297755e82a..fe1c6b9a5d 100644
--- a/wcfsetup/install/files/lib/data/language/item/LanguageItem.class.php
+++ b/wcfsetup/install/files/lib/data/language/item/LanguageItem.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\language\item;
 use wcf\data\DatabaseObject;
 
diff --git a/wcfsetup/install/files/lib/data/language/item/LanguageItemAction.class.php b/wcfsetup/install/files/lib/data/language/item/LanguageItemAction.class.php
index ca3e179b05..107ad4610e 100644
--- a/wcfsetup/install/files/lib/data/language/item/LanguageItemAction.class.php
+++ b/wcfsetup/install/files/lib/data/language/item/LanguageItemAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\language\item;
 use wcf\data\AbstractDatabaseObjectAction;
 use wcf\system\exception\PermissionDeniedException;
diff --git a/wcfsetup/install/files/lib/data/language/item/LanguageItemEditor.class.php b/wcfsetup/install/files/lib/data/language/item/LanguageItemEditor.class.php
index c7dfc8fcb7..be43566661 100644
--- a/wcfsetup/install/files/lib/data/language/item/LanguageItemEditor.class.php
+++ b/wcfsetup/install/files/lib/data/language/item/LanguageItemEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\language\item;
 use wcf\data\DatabaseObjectEditor;
 
diff --git a/wcfsetup/install/files/lib/data/language/item/LanguageItemList.class.php b/wcfsetup/install/files/lib/data/language/item/LanguageItemList.class.php
index 3e54c0db91..2564cc2b01 100644
--- a/wcfsetup/install/files/lib/data/language/item/LanguageItemList.class.php
+++ b/wcfsetup/install/files/lib/data/language/item/LanguageItemList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\language\item;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/like/ILikeObjectTypeProvider.class.php b/wcfsetup/install/files/lib/data/like/ILikeObjectTypeProvider.class.php
index 271c9d0658..8bf9abccb5 100644
--- a/wcfsetup/install/files/lib/data/like/ILikeObjectTypeProvider.class.php
+++ b/wcfsetup/install/files/lib/data/like/ILikeObjectTypeProvider.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\like;
 use wcf\data\like\object\ILikeObject;
 use wcf\data\object\type\IObjectTypeProvider;
diff --git a/wcfsetup/install/files/lib/data/like/IRestrictedLikeObjectTypeProvider.class.php b/wcfsetup/install/files/lib/data/like/IRestrictedLikeObjectTypeProvider.class.php
index 54aedcc546..7b1983c21d 100644
--- a/wcfsetup/install/files/lib/data/like/IRestrictedLikeObjectTypeProvider.class.php
+++ b/wcfsetup/install/files/lib/data/like/IRestrictedLikeObjectTypeProvider.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\like;
 use wcf\data\like\object\ILikeObject;
 
diff --git a/wcfsetup/install/files/lib/data/like/Like.class.php b/wcfsetup/install/files/lib/data/like/Like.class.php
index c0eb904e88..2f5ea3e58d 100644
--- a/wcfsetup/install/files/lib/data/like/Like.class.php
+++ b/wcfsetup/install/files/lib/data/like/Like.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\like;
 use wcf\data\DatabaseObject;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/data/like/LikeAction.class.php b/wcfsetup/install/files/lib/data/like/LikeAction.class.php
index 9919d2ef74..35be5e5a59 100644
--- a/wcfsetup/install/files/lib/data/like/LikeAction.class.php
+++ b/wcfsetup/install/files/lib/data/like/LikeAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\like;
 use wcf\data\like\object\LikeObjectEditor;
 use wcf\data\object\type\ObjectTypeCache;
diff --git a/wcfsetup/install/files/lib/data/like/LikeEditor.class.php b/wcfsetup/install/files/lib/data/like/LikeEditor.class.php
index 82f6380cf3..60783a0329 100644
--- a/wcfsetup/install/files/lib/data/like/LikeEditor.class.php
+++ b/wcfsetup/install/files/lib/data/like/LikeEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\like;
 use wcf\data\DatabaseObjectEditor;
 
diff --git a/wcfsetup/install/files/lib/data/like/LikeList.class.php b/wcfsetup/install/files/lib/data/like/LikeList.class.php
index c23c14a343..f66c1a0039 100644
--- a/wcfsetup/install/files/lib/data/like/LikeList.class.php
+++ b/wcfsetup/install/files/lib/data/like/LikeList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\like;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/like/ViewableLike.class.php b/wcfsetup/install/files/lib/data/like/ViewableLike.class.php
index 834a0bebc1..fc862278b5 100644
--- a/wcfsetup/install/files/lib/data/like/ViewableLike.class.php
+++ b/wcfsetup/install/files/lib/data/like/ViewableLike.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\like;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\data\user\UserProfile;
diff --git a/wcfsetup/install/files/lib/data/like/ViewableLikeList.class.php b/wcfsetup/install/files/lib/data/like/ViewableLikeList.class.php
index 4965309798..880d76e7c4 100644
--- a/wcfsetup/install/files/lib/data/like/ViewableLikeList.class.php
+++ b/wcfsetup/install/files/lib/data/like/ViewableLikeList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\like;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\system\cache\runtime\UserProfileRuntimeCache;
diff --git a/wcfsetup/install/files/lib/data/like/object/AbstractLikeObject.class.php b/wcfsetup/install/files/lib/data/like/object/AbstractLikeObject.class.php
index a6e10f2891..d63d6e31e9 100644
--- a/wcfsetup/install/files/lib/data/like/object/AbstractLikeObject.class.php
+++ b/wcfsetup/install/files/lib/data/like/object/AbstractLikeObject.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\like\object;
 use wcf\data\like\Like;
 use wcf\data\object\type\ObjectType;
diff --git a/wcfsetup/install/files/lib/data/like/object/ILikeObject.class.php b/wcfsetup/install/files/lib/data/like/object/ILikeObject.class.php
index 217ccbfee9..d723cbc94e 100644
--- a/wcfsetup/install/files/lib/data/like/object/ILikeObject.class.php
+++ b/wcfsetup/install/files/lib/data/like/object/ILikeObject.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\like\object;
 use wcf\data\like\Like;
 use wcf\data\object\type\ObjectType;
diff --git a/wcfsetup/install/files/lib/data/like/object/LikeObject.class.php b/wcfsetup/install/files/lib/data/like/object/LikeObject.class.php
index 988a6e8df7..a73280e0e0 100644
--- a/wcfsetup/install/files/lib/data/like/object/LikeObject.class.php
+++ b/wcfsetup/install/files/lib/data/like/object/LikeObject.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\like\object;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\data\user\User;
diff --git a/wcfsetup/install/files/lib/data/like/object/LikeObjectEditor.class.php b/wcfsetup/install/files/lib/data/like/object/LikeObjectEditor.class.php
index 6c12d5c1d6..7d7006bbc9 100644
--- a/wcfsetup/install/files/lib/data/like/object/LikeObjectEditor.class.php
+++ b/wcfsetup/install/files/lib/data/like/object/LikeObjectEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\like\object;
 use wcf\data\DatabaseObjectEditor;
 
diff --git a/wcfsetup/install/files/lib/data/like/object/LikeObjectList.class.php b/wcfsetup/install/files/lib/data/like/object/LikeObjectList.class.php
index 06bfbdae36..7141401bbe 100644
--- a/wcfsetup/install/files/lib/data/like/object/LikeObjectList.class.php
+++ b/wcfsetup/install/files/lib/data/like/object/LikeObjectList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\like\object;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/media/Media.class.php b/wcfsetup/install/files/lib/data/media/Media.class.php
index 1249e24a0f..02f46ecb0d 100644
--- a/wcfsetup/install/files/lib/data/media/Media.class.php
+++ b/wcfsetup/install/files/lib/data/media/Media.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\media;
 use wcf\data\DatabaseObject;
 use wcf\data\ILinkableObject;
diff --git a/wcfsetup/install/files/lib/data/media/MediaAction.class.php b/wcfsetup/install/files/lib/data/media/MediaAction.class.php
index 171c7a93b0..9976e12916 100644
--- a/wcfsetup/install/files/lib/data/media/MediaAction.class.php
+++ b/wcfsetup/install/files/lib/data/media/MediaAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\media;
 use wcf\data\category\CategoryNodeTree;
 use wcf\data\AbstractDatabaseObjectAction;
diff --git a/wcfsetup/install/files/lib/data/media/MediaEditor.class.php b/wcfsetup/install/files/lib/data/media/MediaEditor.class.php
index 73bcfb994e..8ffdf5b247 100644
--- a/wcfsetup/install/files/lib/data/media/MediaEditor.class.php
+++ b/wcfsetup/install/files/lib/data/media/MediaEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\media;
 use wcf\data\DatabaseObjectEditor;
 
diff --git a/wcfsetup/install/files/lib/data/media/MediaList.class.php b/wcfsetup/install/files/lib/data/media/MediaList.class.php
index e78e98aff5..b626b4c3e0 100644
--- a/wcfsetup/install/files/lib/data/media/MediaList.class.php
+++ b/wcfsetup/install/files/lib/data/media/MediaList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\media;
 use wcf\data\DatabaseObjectList;
 use wcf\system\database\util\PreparedStatementConditionBuilder;
diff --git a/wcfsetup/install/files/lib/data/media/ViewableMedia.class.php b/wcfsetup/install/files/lib/data/media/ViewableMedia.class.php
index 2e15671f37..f972631b4c 100644
--- a/wcfsetup/install/files/lib/data/media/ViewableMedia.class.php
+++ b/wcfsetup/install/files/lib/data/media/ViewableMedia.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\media;
 use wcf\data\user\UserProfile;
 use wcf\data\DatabaseObjectDecorator;
diff --git a/wcfsetup/install/files/lib/data/media/ViewableMediaList.class.php b/wcfsetup/install/files/lib/data/media/ViewableMediaList.class.php
index 2382dd9c63..f613ae4de8 100644
--- a/wcfsetup/install/files/lib/data/media/ViewableMediaList.class.php
+++ b/wcfsetup/install/files/lib/data/media/ViewableMediaList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\media;
 use wcf\system\WCF;
 
diff --git a/wcfsetup/install/files/lib/data/menu/Menu.class.php b/wcfsetup/install/files/lib/data/menu/Menu.class.php
index 69d34b4e37..e182d28699 100644
--- a/wcfsetup/install/files/lib/data/menu/Menu.class.php
+++ b/wcfsetup/install/files/lib/data/menu/Menu.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\menu;
 use wcf\data\box\Box;
 use wcf\data\menu\item\MenuItemNodeTree;
diff --git a/wcfsetup/install/files/lib/data/menu/MenuAction.class.php b/wcfsetup/install/files/lib/data/menu/MenuAction.class.php
index 06ea70b6c5..aba8d90c6e 100644
--- a/wcfsetup/install/files/lib/data/menu/MenuAction.class.php
+++ b/wcfsetup/install/files/lib/data/menu/MenuAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\menu;
 use wcf\data\box\BoxAction;
 use wcf\data\box\BoxEditor;
diff --git a/wcfsetup/install/files/lib/data/menu/MenuCache.class.php b/wcfsetup/install/files/lib/data/menu/MenuCache.class.php
index bd36de7654..005fb47658 100644
--- a/wcfsetup/install/files/lib/data/menu/MenuCache.class.php
+++ b/wcfsetup/install/files/lib/data/menu/MenuCache.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\menu;
 use wcf\data\menu\item\MenuItemList;
 use wcf\system\cache\builder\MenuCacheBuilder;
diff --git a/wcfsetup/install/files/lib/data/menu/MenuEditor.class.php b/wcfsetup/install/files/lib/data/menu/MenuEditor.class.php
index 8a61a27be5..65277856c1 100644
--- a/wcfsetup/install/files/lib/data/menu/MenuEditor.class.php
+++ b/wcfsetup/install/files/lib/data/menu/MenuEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\menu;
 use wcf\data\DatabaseObjectEditor;
 use wcf\data\IEditableCachedObject;
diff --git a/wcfsetup/install/files/lib/data/menu/MenuList.class.php b/wcfsetup/install/files/lib/data/menu/MenuList.class.php
index 89822b88b4..bf1639bc84 100644
--- a/wcfsetup/install/files/lib/data/menu/MenuList.class.php
+++ b/wcfsetup/install/files/lib/data/menu/MenuList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\menu;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/menu/item/MenuItem.class.php b/wcfsetup/install/files/lib/data/menu/item/MenuItem.class.php
index 974b0db843..761a724624 100644
--- a/wcfsetup/install/files/lib/data/menu/item/MenuItem.class.php
+++ b/wcfsetup/install/files/lib/data/menu/item/MenuItem.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\menu\item;
 use wcf\data\page\Page;
 use wcf\data\page\PageCache;
diff --git a/wcfsetup/install/files/lib/data/menu/item/MenuItemAction.class.php b/wcfsetup/install/files/lib/data/menu/item/MenuItemAction.class.php
index 8a98a8f4cd..7c3c06da3f 100644
--- a/wcfsetup/install/files/lib/data/menu/item/MenuItemAction.class.php
+++ b/wcfsetup/install/files/lib/data/menu/item/MenuItemAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\menu\item;
 use wcf\data\menu\Menu;
 use wcf\data\AbstractDatabaseObjectAction;
diff --git a/wcfsetup/install/files/lib/data/menu/item/MenuItemEditor.class.php b/wcfsetup/install/files/lib/data/menu/item/MenuItemEditor.class.php
index 46148be995..9bc8549d01 100644
--- a/wcfsetup/install/files/lib/data/menu/item/MenuItemEditor.class.php
+++ b/wcfsetup/install/files/lib/data/menu/item/MenuItemEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\menu\item;
 use wcf\data\DatabaseObjectEditor;
 use wcf\data\IEditableCachedObject;
diff --git a/wcfsetup/install/files/lib/data/menu/item/MenuItemList.class.php b/wcfsetup/install/files/lib/data/menu/item/MenuItemList.class.php
index 18e18eaa6a..7a61525683 100644
--- a/wcfsetup/install/files/lib/data/menu/item/MenuItemList.class.php
+++ b/wcfsetup/install/files/lib/data/menu/item/MenuItemList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\menu\item;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/menu/item/MenuItemNode.class.php b/wcfsetup/install/files/lib/data/menu/item/MenuItemNode.class.php
index e8fd5d7dea..34e77d6772 100644
--- a/wcfsetup/install/files/lib/data/menu/item/MenuItemNode.class.php
+++ b/wcfsetup/install/files/lib/data/menu/item/MenuItemNode.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\menu\item;
 use wcf\data\DatabaseObjectDecorator;
 
diff --git a/wcfsetup/install/files/lib/data/menu/item/MenuItemNodeTree.class.php b/wcfsetup/install/files/lib/data/menu/item/MenuItemNodeTree.class.php
index 75ea71e978..ad5888b572 100644
--- a/wcfsetup/install/files/lib/data/menu/item/MenuItemNodeTree.class.php
+++ b/wcfsetup/install/files/lib/data/menu/item/MenuItemNodeTree.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\menu\item;
 use wcf\system\page\PageLocationManager;
 use wcf\system\request\RequestHandler;
diff --git a/wcfsetup/install/files/lib/data/moderation/queue/ModerationQueue.class.php b/wcfsetup/install/files/lib/data/moderation/queue/ModerationQueue.class.php
index f64f81b17a..cd7820e26c 100644
--- a/wcfsetup/install/files/lib/data/moderation/queue/ModerationQueue.class.php
+++ b/wcfsetup/install/files/lib/data/moderation/queue/ModerationQueue.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\moderation\queue;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\data\DatabaseObject;
diff --git a/wcfsetup/install/files/lib/data/moderation/queue/ModerationQueueAction.class.php b/wcfsetup/install/files/lib/data/moderation/queue/ModerationQueueAction.class.php
index 53cb33af48..410f2b38eb 100644
--- a/wcfsetup/install/files/lib/data/moderation/queue/ModerationQueueAction.class.php
+++ b/wcfsetup/install/files/lib/data/moderation/queue/ModerationQueueAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\moderation\queue;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\data\user\User;
diff --git a/wcfsetup/install/files/lib/data/moderation/queue/ModerationQueueActivationAction.class.php b/wcfsetup/install/files/lib/data/moderation/queue/ModerationQueueActivationAction.class.php
index 1c33fe668c..3566f6dcbb 100644
--- a/wcfsetup/install/files/lib/data/moderation/queue/ModerationQueueActivationAction.class.php
+++ b/wcfsetup/install/files/lib/data/moderation/queue/ModerationQueueActivationAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\moderation\queue;
 use wcf\system\exception\PermissionDeniedException;
 use wcf\system\moderation\queue\ModerationQueueActivationManager;
diff --git a/wcfsetup/install/files/lib/data/moderation/queue/ModerationQueueEditor.class.php b/wcfsetup/install/files/lib/data/moderation/queue/ModerationQueueEditor.class.php
index e8f180bd35..f39600736a 100644
--- a/wcfsetup/install/files/lib/data/moderation/queue/ModerationQueueEditor.class.php
+++ b/wcfsetup/install/files/lib/data/moderation/queue/ModerationQueueEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\moderation\queue;
 use wcf\data\DatabaseObjectEditor;
 use wcf\system\moderation\queue\ModerationQueueManager;
diff --git a/wcfsetup/install/files/lib/data/moderation/queue/ModerationQueueList.class.php b/wcfsetup/install/files/lib/data/moderation/queue/ModerationQueueList.class.php
index 68faeb1e64..05d428b3c0 100644
--- a/wcfsetup/install/files/lib/data/moderation/queue/ModerationQueueList.class.php
+++ b/wcfsetup/install/files/lib/data/moderation/queue/ModerationQueueList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\moderation\queue;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/moderation/queue/ModerationQueueReportAction.class.php b/wcfsetup/install/files/lib/data/moderation/queue/ModerationQueueReportAction.class.php
index 915b5fa5e5..952091fb17 100644
--- a/wcfsetup/install/files/lib/data/moderation/queue/ModerationQueueReportAction.class.php
+++ b/wcfsetup/install/files/lib/data/moderation/queue/ModerationQueueReportAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\moderation\queue;
 use wcf\system\exception\PermissionDeniedException;
 use wcf\system\exception\UserInputException;
diff --git a/wcfsetup/install/files/lib/data/moderation/queue/ViewableModerationQueue.class.php b/wcfsetup/install/files/lib/data/moderation/queue/ViewableModerationQueue.class.php
index 1568ad727f..6f9035646c 100644
--- a/wcfsetup/install/files/lib/data/moderation/queue/ViewableModerationQueue.class.php
+++ b/wcfsetup/install/files/lib/data/moderation/queue/ViewableModerationQueue.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\moderation\queue;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\data\user\User;
diff --git a/wcfsetup/install/files/lib/data/moderation/queue/ViewableModerationQueueList.class.php b/wcfsetup/install/files/lib/data/moderation/queue/ViewableModerationQueueList.class.php
index 24edf9d76f..11e86aef92 100644
--- a/wcfsetup/install/files/lib/data/moderation/queue/ViewableModerationQueueList.class.php
+++ b/wcfsetup/install/files/lib/data/moderation/queue/ViewableModerationQueueList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\moderation\queue;
 use wcf\system\cache\runtime\UserProfileRuntimeCache;
 use wcf\system\moderation\queue\ModerationQueueManager;
diff --git a/wcfsetup/install/files/lib/data/modification/log/ModificationLog.class.php b/wcfsetup/install/files/lib/data/modification/log/ModificationLog.class.php
index 831aac1765..eb33abff7a 100644
--- a/wcfsetup/install/files/lib/data/modification/log/ModificationLog.class.php
+++ b/wcfsetup/install/files/lib/data/modification/log/ModificationLog.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\modification\log;
 use wcf\data\DatabaseObject;
 
diff --git a/wcfsetup/install/files/lib/data/modification/log/ModificationLogAction.class.php b/wcfsetup/install/files/lib/data/modification/log/ModificationLogAction.class.php
index 464f04f85c..a65a3b49be 100644
--- a/wcfsetup/install/files/lib/data/modification/log/ModificationLogAction.class.php
+++ b/wcfsetup/install/files/lib/data/modification/log/ModificationLogAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\modification\log;
 use wcf\data\AbstractDatabaseObjectAction;
 
diff --git a/wcfsetup/install/files/lib/data/modification/log/ModificationLogEditor.class.php b/wcfsetup/install/files/lib/data/modification/log/ModificationLogEditor.class.php
index 3185d19294..c451668ee4 100644
--- a/wcfsetup/install/files/lib/data/modification/log/ModificationLogEditor.class.php
+++ b/wcfsetup/install/files/lib/data/modification/log/ModificationLogEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\modification\log;
 use wcf\data\DatabaseObjectEditor;
 
diff --git a/wcfsetup/install/files/lib/data/modification/log/ModificationLogList.class.php b/wcfsetup/install/files/lib/data/modification/log/ModificationLogList.class.php
index b4e0db47ad..d810c4b4c0 100644
--- a/wcfsetup/install/files/lib/data/modification/log/ModificationLogList.class.php
+++ b/wcfsetup/install/files/lib/data/modification/log/ModificationLogList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\modification\log;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/notice/Notice.class.php b/wcfsetup/install/files/lib/data/notice/Notice.class.php
index 1d672e84f3..50db95d89a 100644
--- a/wcfsetup/install/files/lib/data/notice/Notice.class.php
+++ b/wcfsetup/install/files/lib/data/notice/Notice.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\notice;
 use wcf\data\condition\Condition;
 use wcf\data\DatabaseObject;
diff --git a/wcfsetup/install/files/lib/data/notice/NoticeAction.class.php b/wcfsetup/install/files/lib/data/notice/NoticeAction.class.php
index 88075b74c2..1e5a516648 100644
--- a/wcfsetup/install/files/lib/data/notice/NoticeAction.class.php
+++ b/wcfsetup/install/files/lib/data/notice/NoticeAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\notice;
 use wcf\data\AbstractDatabaseObjectAction;
 use wcf\data\ISortableAction;
diff --git a/wcfsetup/install/files/lib/data/notice/NoticeEditor.class.php b/wcfsetup/install/files/lib/data/notice/NoticeEditor.class.php
index 3ac0132006..5524cbd8fd 100644
--- a/wcfsetup/install/files/lib/data/notice/NoticeEditor.class.php
+++ b/wcfsetup/install/files/lib/data/notice/NoticeEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\notice;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\data\DatabaseObjectEditor;
diff --git a/wcfsetup/install/files/lib/data/notice/NoticeList.class.php b/wcfsetup/install/files/lib/data/notice/NoticeList.class.php
index 144dc05315..24670c836c 100644
--- a/wcfsetup/install/files/lib/data/notice/NoticeList.class.php
+++ b/wcfsetup/install/files/lib/data/notice/NoticeList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\notice;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/object/type/AbstractObjectTypeProcessor.class.php b/wcfsetup/install/files/lib/data/object/type/AbstractObjectTypeProcessor.class.php
index 40a11f31a5..99fec39cf6 100644
--- a/wcfsetup/install/files/lib/data/object/type/AbstractObjectTypeProcessor.class.php
+++ b/wcfsetup/install/files/lib/data/object/type/AbstractObjectTypeProcessor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\object\type;
 use wcf\data\DatabaseObjectDecorator;
 use wcf\data\IDatabaseObjectProcessor;
diff --git a/wcfsetup/install/files/lib/data/object/type/AbstractObjectTypeProvider.class.php b/wcfsetup/install/files/lib/data/object/type/AbstractObjectTypeProvider.class.php
index e1675d7dea..4796b88b23 100644
--- a/wcfsetup/install/files/lib/data/object/type/AbstractObjectTypeProvider.class.php
+++ b/wcfsetup/install/files/lib/data/object/type/AbstractObjectTypeProvider.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\object\type;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/object/type/IObjectTypeProvider.class.php b/wcfsetup/install/files/lib/data/object/type/IObjectTypeProvider.class.php
index 4ad2de2fa2..f2a5fe7608 100644
--- a/wcfsetup/install/files/lib/data/object/type/IObjectTypeProvider.class.php
+++ b/wcfsetup/install/files/lib/data/object/type/IObjectTypeProvider.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\object\type;
 use wcf\data\DatabaseObject;
 
diff --git a/wcfsetup/install/files/lib/data/object/type/ObjectType.class.php b/wcfsetup/install/files/lib/data/object/type/ObjectType.class.php
index dd3e5038ab..69e0fbebc8 100644
--- a/wcfsetup/install/files/lib/data/object/type/ObjectType.class.php
+++ b/wcfsetup/install/files/lib/data/object/type/ObjectType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\object\type;
 use wcf\data\object\type\definition\ObjectTypeDefinition;
 use wcf\data\package\Package;
diff --git a/wcfsetup/install/files/lib/data/object/type/ObjectTypeAction.class.php b/wcfsetup/install/files/lib/data/object/type/ObjectTypeAction.class.php
index fab54ac48c..a334432250 100644
--- a/wcfsetup/install/files/lib/data/object/type/ObjectTypeAction.class.php
+++ b/wcfsetup/install/files/lib/data/object/type/ObjectTypeAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\object\type;
 use wcf\data\AbstractDatabaseObjectAction;
 
diff --git a/wcfsetup/install/files/lib/data/object/type/ObjectTypeCache.class.php b/wcfsetup/install/files/lib/data/object/type/ObjectTypeCache.class.php
index 1509db687e..c9d65a5bad 100644
--- a/wcfsetup/install/files/lib/data/object/type/ObjectTypeCache.class.php
+++ b/wcfsetup/install/files/lib/data/object/type/ObjectTypeCache.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\object\type;
 use wcf\data\object\type\definition\ObjectTypeDefinition;
 use wcf\system\cache\builder\ObjectTypeCacheBuilder;
diff --git a/wcfsetup/install/files/lib/data/object/type/ObjectTypeEditor.class.php b/wcfsetup/install/files/lib/data/object/type/ObjectTypeEditor.class.php
index 12dbcd0e38..825d4c3cfc 100644
--- a/wcfsetup/install/files/lib/data/object/type/ObjectTypeEditor.class.php
+++ b/wcfsetup/install/files/lib/data/object/type/ObjectTypeEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\object\type;
 use wcf\data\DatabaseObjectEditor;
 use wcf\data\IEditableCachedObject;
diff --git a/wcfsetup/install/files/lib/data/object/type/ObjectTypeList.class.php b/wcfsetup/install/files/lib/data/object/type/ObjectTypeList.class.php
index 0f7754dea8..f6cf81e3e3 100644
--- a/wcfsetup/install/files/lib/data/object/type/ObjectTypeList.class.php
+++ b/wcfsetup/install/files/lib/data/object/type/ObjectTypeList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\object\type;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/object/type/SitemapObjectTypeAction.class.php b/wcfsetup/install/files/lib/data/object/type/SitemapObjectTypeAction.class.php
index baa9179d91..179231ddb5 100644
--- a/wcfsetup/install/files/lib/data/object/type/SitemapObjectTypeAction.class.php
+++ b/wcfsetup/install/files/lib/data/object/type/SitemapObjectTypeAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\object\type;
 use wcf\data\IToggleAction;
 use wcf\system\exception\IllegalLinkException;
diff --git a/wcfsetup/install/files/lib/data/object/type/definition/ObjectTypeDefinition.class.php b/wcfsetup/install/files/lib/data/object/type/definition/ObjectTypeDefinition.class.php
index 47514a11e9..f5278fab34 100644
--- a/wcfsetup/install/files/lib/data/object/type/definition/ObjectTypeDefinition.class.php
+++ b/wcfsetup/install/files/lib/data/object/type/definition/ObjectTypeDefinition.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\object\type\definition;
 use wcf\data\DatabaseObject;
 
diff --git a/wcfsetup/install/files/lib/data/object/type/definition/ObjectTypeDefinitionAction.class.php b/wcfsetup/install/files/lib/data/object/type/definition/ObjectTypeDefinitionAction.class.php
index e951d142d6..d5155595b1 100644
--- a/wcfsetup/install/files/lib/data/object/type/definition/ObjectTypeDefinitionAction.class.php
+++ b/wcfsetup/install/files/lib/data/object/type/definition/ObjectTypeDefinitionAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\object\type\definition;
 use wcf\data\AbstractDatabaseObjectAction;
 
diff --git a/wcfsetup/install/files/lib/data/object/type/definition/ObjectTypeDefinitionEditor.class.php b/wcfsetup/install/files/lib/data/object/type/definition/ObjectTypeDefinitionEditor.class.php
index 5c42299670..ef028f0f1b 100644
--- a/wcfsetup/install/files/lib/data/object/type/definition/ObjectTypeDefinitionEditor.class.php
+++ b/wcfsetup/install/files/lib/data/object/type/definition/ObjectTypeDefinitionEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\object\type\definition;
 use wcf\data\DatabaseObjectEditor;
 
diff --git a/wcfsetup/install/files/lib/data/object/type/definition/ObjectTypeDefinitionList.class.php b/wcfsetup/install/files/lib/data/object/type/definition/ObjectTypeDefinitionList.class.php
index 35b82b244e..a992b12a25 100644
--- a/wcfsetup/install/files/lib/data/object/type/definition/ObjectTypeDefinitionList.class.php
+++ b/wcfsetup/install/files/lib/data/object/type/definition/ObjectTypeDefinitionList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\object\type\definition;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/option/Option.class.php b/wcfsetup/install/files/lib/data/option/Option.class.php
index efd553479e..56a28f29c6 100644
--- a/wcfsetup/install/files/lib/data/option/Option.class.php
+++ b/wcfsetup/install/files/lib/data/option/Option.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\option;
 use wcf\data\DatabaseObject;
 use wcf\data\TDatabaseObjectOptions;
diff --git a/wcfsetup/install/files/lib/data/option/OptionAction.class.php b/wcfsetup/install/files/lib/data/option/OptionAction.class.php
index 1fb93d10f4..7e325a741e 100644
--- a/wcfsetup/install/files/lib/data/option/OptionAction.class.php
+++ b/wcfsetup/install/files/lib/data/option/OptionAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\option;
 use wcf\data\AbstractDatabaseObjectAction;
 use wcf\system\email\transport\SmtpEmailTransport;
diff --git a/wcfsetup/install/files/lib/data/option/OptionEditor.class.php b/wcfsetup/install/files/lib/data/option/OptionEditor.class.php
index 16db796002..c7e5dc3469 100644
--- a/wcfsetup/install/files/lib/data/option/OptionEditor.class.php
+++ b/wcfsetup/install/files/lib/data/option/OptionEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\option;
 use wcf\data\user\group\UserGroupEditor;
 use wcf\data\DatabaseObjectEditor;
diff --git a/wcfsetup/install/files/lib/data/option/OptionList.class.php b/wcfsetup/install/files/lib/data/option/OptionList.class.php
index 8db2fd8db3..a201d31493 100644
--- a/wcfsetup/install/files/lib/data/option/OptionList.class.php
+++ b/wcfsetup/install/files/lib/data/option/OptionList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\option;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/option/category/OptionCategory.class.php b/wcfsetup/install/files/lib/data/option/category/OptionCategory.class.php
index d057cd2f73..568f2b4e3f 100644
--- a/wcfsetup/install/files/lib/data/option/category/OptionCategory.class.php
+++ b/wcfsetup/install/files/lib/data/option/category/OptionCategory.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\option\category;
 use wcf\data\DatabaseObject;
 use wcf\data\TDatabaseObjectOptions;
diff --git a/wcfsetup/install/files/lib/data/option/category/OptionCategoryAction.class.php b/wcfsetup/install/files/lib/data/option/category/OptionCategoryAction.class.php
index 58c11f1401..31d8f42e37 100644
--- a/wcfsetup/install/files/lib/data/option/category/OptionCategoryAction.class.php
+++ b/wcfsetup/install/files/lib/data/option/category/OptionCategoryAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\option\category;
 use wcf\data\AbstractDatabaseObjectAction;
 
diff --git a/wcfsetup/install/files/lib/data/option/category/OptionCategoryEditor.class.php b/wcfsetup/install/files/lib/data/option/category/OptionCategoryEditor.class.php
index f8348c01d9..cb744c552f 100644
--- a/wcfsetup/install/files/lib/data/option/category/OptionCategoryEditor.class.php
+++ b/wcfsetup/install/files/lib/data/option/category/OptionCategoryEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\option\category;
 use wcf\data\DatabaseObjectEditor;
 
diff --git a/wcfsetup/install/files/lib/data/option/category/OptionCategoryList.class.php b/wcfsetup/install/files/lib/data/option/category/OptionCategoryList.class.php
index eed14f5374..2b24a8a812 100644
--- a/wcfsetup/install/files/lib/data/option/category/OptionCategoryList.class.php
+++ b/wcfsetup/install/files/lib/data/option/category/OptionCategoryList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\option\category;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/package/Package.class.php b/wcfsetup/install/files/lib/data/package/Package.class.php
index a573b08755..e4c084c3e9 100644
--- a/wcfsetup/install/files/lib/data/package/Package.class.php
+++ b/wcfsetup/install/files/lib/data/package/Package.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\package;
 use wcf\data\DatabaseObject;
 use wcf\system\package\PackageInstallationDispatcher;
diff --git a/wcfsetup/install/files/lib/data/package/PackageAction.class.php b/wcfsetup/install/files/lib/data/package/PackageAction.class.php
index ac0f61a548..66a8c370a3 100644
--- a/wcfsetup/install/files/lib/data/package/PackageAction.class.php
+++ b/wcfsetup/install/files/lib/data/package/PackageAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\package;
 use wcf\data\AbstractDatabaseObjectAction;
 use wcf\system\database\util\PreparedStatementConditionBuilder;
diff --git a/wcfsetup/install/files/lib/data/package/PackageCache.class.php b/wcfsetup/install/files/lib/data/package/PackageCache.class.php
index 88aeeec806..3b8505e3ff 100644
--- a/wcfsetup/install/files/lib/data/package/PackageCache.class.php
+++ b/wcfsetup/install/files/lib/data/package/PackageCache.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\package;
 use wcf\system\cache\builder\PackageCacheBuilder;
 use wcf\system\SingletonFactory;
diff --git a/wcfsetup/install/files/lib/data/package/PackageEditor.class.php b/wcfsetup/install/files/lib/data/package/PackageEditor.class.php
index 97f3f149da..eb9e47a123 100644
--- a/wcfsetup/install/files/lib/data/package/PackageEditor.class.php
+++ b/wcfsetup/install/files/lib/data/package/PackageEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\package;
 use wcf\data\DatabaseObjectEditor;
 use wcf\data\IEditableCachedObject;
diff --git a/wcfsetup/install/files/lib/data/package/PackageList.class.php b/wcfsetup/install/files/lib/data/package/PackageList.class.php
index 3812496adc..d71eb2a4a3 100644
--- a/wcfsetup/install/files/lib/data/package/PackageList.class.php
+++ b/wcfsetup/install/files/lib/data/package/PackageList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\package;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/package/installation/plugin/PackageInstallationPlugin.class.php b/wcfsetup/install/files/lib/data/package/installation/plugin/PackageInstallationPlugin.class.php
index a39fd9582d..035d014b79 100644
--- a/wcfsetup/install/files/lib/data/package/installation/plugin/PackageInstallationPlugin.class.php
+++ b/wcfsetup/install/files/lib/data/package/installation/plugin/PackageInstallationPlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\package\installation\plugin;
 use wcf\data\DatabaseObject;
 
diff --git a/wcfsetup/install/files/lib/data/package/installation/plugin/PackageInstallationPluginAction.class.php b/wcfsetup/install/files/lib/data/package/installation/plugin/PackageInstallationPluginAction.class.php
index a9698babd4..edba84557c 100644
--- a/wcfsetup/install/files/lib/data/package/installation/plugin/PackageInstallationPluginAction.class.php
+++ b/wcfsetup/install/files/lib/data/package/installation/plugin/PackageInstallationPluginAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\package\installation\plugin;
 use wcf\data\devtools\project\DevtoolsProject;
 use wcf\data\option\OptionEditor;
diff --git a/wcfsetup/install/files/lib/data/package/installation/plugin/PackageInstallationPluginEditor.class.php b/wcfsetup/install/files/lib/data/package/installation/plugin/PackageInstallationPluginEditor.class.php
index a5e692b237..44b33f0054 100644
--- a/wcfsetup/install/files/lib/data/package/installation/plugin/PackageInstallationPluginEditor.class.php
+++ b/wcfsetup/install/files/lib/data/package/installation/plugin/PackageInstallationPluginEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\package\installation\plugin;
 use wcf\data\DatabaseObjectEditor;
 
diff --git a/wcfsetup/install/files/lib/data/package/installation/plugin/PackageInstallationPluginList.class.php b/wcfsetup/install/files/lib/data/package/installation/plugin/PackageInstallationPluginList.class.php
index aa4e9c37e1..f0716d8502 100644
--- a/wcfsetup/install/files/lib/data/package/installation/plugin/PackageInstallationPluginList.class.php
+++ b/wcfsetup/install/files/lib/data/package/installation/plugin/PackageInstallationPluginList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\package\installation\plugin;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/package/installation/queue/PackageInstallationQueue.class.php b/wcfsetup/install/files/lib/data/package/installation/queue/PackageInstallationQueue.class.php
index bba4a64e7a..e1c3c395ee 100644
--- a/wcfsetup/install/files/lib/data/package/installation/queue/PackageInstallationQueue.class.php
+++ b/wcfsetup/install/files/lib/data/package/installation/queue/PackageInstallationQueue.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\package\installation\queue;
 use wcf\data\DatabaseObject;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/data/package/installation/queue/PackageInstallationQueueAction.class.php b/wcfsetup/install/files/lib/data/package/installation/queue/PackageInstallationQueueAction.class.php
index 33ff20cf67..2cf41e44a9 100644
--- a/wcfsetup/install/files/lib/data/package/installation/queue/PackageInstallationQueueAction.class.php
+++ b/wcfsetup/install/files/lib/data/package/installation/queue/PackageInstallationQueueAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\package\installation\queue;
 use wcf\data\package\Package;
 use wcf\data\AbstractDatabaseObjectAction;
diff --git a/wcfsetup/install/files/lib/data/package/installation/queue/PackageInstallationQueueEditor.class.php b/wcfsetup/install/files/lib/data/package/installation/queue/PackageInstallationQueueEditor.class.php
index f027edb336..64ea87a36d 100644
--- a/wcfsetup/install/files/lib/data/package/installation/queue/PackageInstallationQueueEditor.class.php
+++ b/wcfsetup/install/files/lib/data/package/installation/queue/PackageInstallationQueueEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\package\installation\queue;
 use wcf\data\DatabaseObjectEditor;
 
diff --git a/wcfsetup/install/files/lib/data/package/installation/queue/PackageInstallationQueueList.class.php b/wcfsetup/install/files/lib/data/package/installation/queue/PackageInstallationQueueList.class.php
index 3ccd3e0876..64af49f855 100644
--- a/wcfsetup/install/files/lib/data/package/installation/queue/PackageInstallationQueueList.class.php
+++ b/wcfsetup/install/files/lib/data/package/installation/queue/PackageInstallationQueueList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\package\installation\queue;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/package/update/PackageUpdate.class.php b/wcfsetup/install/files/lib/data/package/update/PackageUpdate.class.php
index c8f18a93a3..45b52a5a85 100644
--- a/wcfsetup/install/files/lib/data/package/update/PackageUpdate.class.php
+++ b/wcfsetup/install/files/lib/data/package/update/PackageUpdate.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\package\update;
 use wcf\data\DatabaseObject;
 
diff --git a/wcfsetup/install/files/lib/data/package/update/PackageUpdateAction.class.php b/wcfsetup/install/files/lib/data/package/update/PackageUpdateAction.class.php
index 5e7c92be29..decb1551f9 100644
--- a/wcfsetup/install/files/lib/data/package/update/PackageUpdateAction.class.php
+++ b/wcfsetup/install/files/lib/data/package/update/PackageUpdateAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\package\update;
 use wcf\data\package\installation\queue\PackageInstallationQueue;
 use wcf\data\package\installation\queue\PackageInstallationQueueEditor;
diff --git a/wcfsetup/install/files/lib/data/package/update/PackageUpdateEditor.class.php b/wcfsetup/install/files/lib/data/package/update/PackageUpdateEditor.class.php
index 3f57049c77..1495e5d12f 100644
--- a/wcfsetup/install/files/lib/data/package/update/PackageUpdateEditor.class.php
+++ b/wcfsetup/install/files/lib/data/package/update/PackageUpdateEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\package\update;
 use wcf\data\DatabaseObjectEditor;
 
diff --git a/wcfsetup/install/files/lib/data/package/update/PackageUpdateList.class.php b/wcfsetup/install/files/lib/data/package/update/PackageUpdateList.class.php
index 8dc2a1caed..793f1de62e 100644
--- a/wcfsetup/install/files/lib/data/package/update/PackageUpdateList.class.php
+++ b/wcfsetup/install/files/lib/data/package/update/PackageUpdateList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\package\update;
 use wcf\data\DatabaseObjectList;
 use wcf\system\database\util\PreparedStatementConditionBuilder;
diff --git a/wcfsetup/install/files/lib/data/package/update/ViewablePackageUpdate.class.php b/wcfsetup/install/files/lib/data/package/update/ViewablePackageUpdate.class.php
index 94cd5b121d..220d35448e 100644
--- a/wcfsetup/install/files/lib/data/package/update/ViewablePackageUpdate.class.php
+++ b/wcfsetup/install/files/lib/data/package/update/ViewablePackageUpdate.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\package\update;
 use wcf\data\package\update\version\PackageUpdateVersion;
 use wcf\data\DatabaseObjectDecorator;
diff --git a/wcfsetup/install/files/lib/data/package/update/server/PackageUpdateServer.class.php b/wcfsetup/install/files/lib/data/package/update/server/PackageUpdateServer.class.php
index 70ac86d96b..d7b7879cf9 100644
--- a/wcfsetup/install/files/lib/data/package/update/server/PackageUpdateServer.class.php
+++ b/wcfsetup/install/files/lib/data/package/update/server/PackageUpdateServer.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\package\update\server;
 use wcf\data\DatabaseObject;
 use wcf\system\cache\builder\PackageUpdateCacheBuilder;
diff --git a/wcfsetup/install/files/lib/data/package/update/server/PackageUpdateServerAction.class.php b/wcfsetup/install/files/lib/data/package/update/server/PackageUpdateServerAction.class.php
index 89365b1728..fcfabafa5b 100644
--- a/wcfsetup/install/files/lib/data/package/update/server/PackageUpdateServerAction.class.php
+++ b/wcfsetup/install/files/lib/data/package/update/server/PackageUpdateServerAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\package\update\server;
 use wcf\data\AbstractDatabaseObjectAction;
 use wcf\data\IToggleAction;
diff --git a/wcfsetup/install/files/lib/data/package/update/server/PackageUpdateServerEditor.class.php b/wcfsetup/install/files/lib/data/package/update/server/PackageUpdateServerEditor.class.php
index a6f0addf7a..772288608f 100644
--- a/wcfsetup/install/files/lib/data/package/update/server/PackageUpdateServerEditor.class.php
+++ b/wcfsetup/install/files/lib/data/package/update/server/PackageUpdateServerEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\package\update\server;
 use wcf\data\DatabaseObjectEditor;
 use wcf\data\IEditableCachedObject;
diff --git a/wcfsetup/install/files/lib/data/package/update/server/PackageUpdateServerList.class.php b/wcfsetup/install/files/lib/data/package/update/server/PackageUpdateServerList.class.php
index 39e67ee30b..56a03fdbf9 100644
--- a/wcfsetup/install/files/lib/data/package/update/server/PackageUpdateServerList.class.php
+++ b/wcfsetup/install/files/lib/data/package/update/server/PackageUpdateServerList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\package\update\server;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/package/update/version/PackageUpdateVersion.class.php b/wcfsetup/install/files/lib/data/package/update/version/PackageUpdateVersion.class.php
index facafe4ef0..d63476c480 100644
--- a/wcfsetup/install/files/lib/data/package/update/version/PackageUpdateVersion.class.php
+++ b/wcfsetup/install/files/lib/data/package/update/version/PackageUpdateVersion.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\package\update\version;
 use wcf\data\DatabaseObject;
 
diff --git a/wcfsetup/install/files/lib/data/package/update/version/PackageUpdateVersionAction.class.php b/wcfsetup/install/files/lib/data/package/update/version/PackageUpdateVersionAction.class.php
index 819951fefc..bb00c747d7 100644
--- a/wcfsetup/install/files/lib/data/package/update/version/PackageUpdateVersionAction.class.php
+++ b/wcfsetup/install/files/lib/data/package/update/version/PackageUpdateVersionAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\package\update\version;
 use wcf\data\AbstractDatabaseObjectAction;
 
diff --git a/wcfsetup/install/files/lib/data/package/update/version/PackageUpdateVersionEditor.class.php b/wcfsetup/install/files/lib/data/package/update/version/PackageUpdateVersionEditor.class.php
index 072dd4ff5b..1f721f5fe6 100644
--- a/wcfsetup/install/files/lib/data/package/update/version/PackageUpdateVersionEditor.class.php
+++ b/wcfsetup/install/files/lib/data/package/update/version/PackageUpdateVersionEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\package\update\version;
 use wcf\data\DatabaseObjectEditor;
 
diff --git a/wcfsetup/install/files/lib/data/package/update/version/PackageUpdateVersionList.class.php b/wcfsetup/install/files/lib/data/package/update/version/PackageUpdateVersionList.class.php
index cd8225e10e..b8feeddcc0 100644
--- a/wcfsetup/install/files/lib/data/package/update/version/PackageUpdateVersionList.class.php
+++ b/wcfsetup/install/files/lib/data/package/update/version/PackageUpdateVersionList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\package\update\version;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/page/Page.class.php b/wcfsetup/install/files/lib/data/page/Page.class.php
index fe6ef7e632..3d00dae34d 100644
--- a/wcfsetup/install/files/lib/data/page/Page.class.php
+++ b/wcfsetup/install/files/lib/data/page/Page.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\page;
 use wcf\data\page\content\PageContent;
 use wcf\data\DatabaseObject;
diff --git a/wcfsetup/install/files/lib/data/page/PageAction.class.php b/wcfsetup/install/files/lib/data/page/PageAction.class.php
index a7a2cbfa55..8c97a4e1b2 100644
--- a/wcfsetup/install/files/lib/data/page/PageAction.class.php
+++ b/wcfsetup/install/files/lib/data/page/PageAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\page;
 use wcf\data\box\Box;
 use wcf\data\page\content\PageContent;
diff --git a/wcfsetup/install/files/lib/data/page/PageCache.class.php b/wcfsetup/install/files/lib/data/page/PageCache.class.php
index 5c9c2c9f9a..22d624a7c3 100644
--- a/wcfsetup/install/files/lib/data/page/PageCache.class.php
+++ b/wcfsetup/install/files/lib/data/page/PageCache.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\page;
 use wcf\system\cache\builder\PageCacheBuilder;
 use wcf\system\SingletonFactory;
diff --git a/wcfsetup/install/files/lib/data/page/PageEditor.class.php b/wcfsetup/install/files/lib/data/page/PageEditor.class.php
index f4a5d758ab..a8e6830231 100644
--- a/wcfsetup/install/files/lib/data/page/PageEditor.class.php
+++ b/wcfsetup/install/files/lib/data/page/PageEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\page;
 use wcf\data\package\PackageCache;
 use wcf\data\DatabaseObjectEditor;
diff --git a/wcfsetup/install/files/lib/data/page/PageLanguage.class.php b/wcfsetup/install/files/lib/data/page/PageLanguage.class.php
index 06c9381452..d3a27989d5 100644
--- a/wcfsetup/install/files/lib/data/page/PageLanguage.class.php
+++ b/wcfsetup/install/files/lib/data/page/PageLanguage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\page;
 use wcf\data\language\Language;
 use wcf\system\language\LanguageFactory;
diff --git a/wcfsetup/install/files/lib/data/page/PageList.class.php b/wcfsetup/install/files/lib/data/page/PageList.class.php
index 9e5a72c0a0..5dd2b8abf6 100644
--- a/wcfsetup/install/files/lib/data/page/PageList.class.php
+++ b/wcfsetup/install/files/lib/data/page/PageList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\page;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/page/PageNode.class.php b/wcfsetup/install/files/lib/data/page/PageNode.class.php
index ae4581f5d0..91729b0859 100644
--- a/wcfsetup/install/files/lib/data/page/PageNode.class.php
+++ b/wcfsetup/install/files/lib/data/page/PageNode.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\page;
 use wcf\data\DatabaseObjectDecorator;
 
diff --git a/wcfsetup/install/files/lib/data/page/PageNodeTree.class.php b/wcfsetup/install/files/lib/data/page/PageNodeTree.class.php
index 425121266c..de26293b22 100644
--- a/wcfsetup/install/files/lib/data/page/PageNodeTree.class.php
+++ b/wcfsetup/install/files/lib/data/page/PageNodeTree.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\page;
 
 /**
diff --git a/wcfsetup/install/files/lib/data/page/PageVersionTracker.class.php b/wcfsetup/install/files/lib/data/page/PageVersionTracker.class.php
index e30f388080..592be33742 100644
--- a/wcfsetup/install/files/lib/data/page/PageVersionTracker.class.php
+++ b/wcfsetup/install/files/lib/data/page/PageVersionTracker.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\page;
 use wcf\data\page\content\PageContent;
 use wcf\data\DatabaseObjectDecorator;
diff --git a/wcfsetup/install/files/lib/data/page/content/PageContent.class.php b/wcfsetup/install/files/lib/data/page/content/PageContent.class.php
index 8108009bec..9526f51f02 100644
--- a/wcfsetup/install/files/lib/data/page/content/PageContent.class.php
+++ b/wcfsetup/install/files/lib/data/page/content/PageContent.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\page\content;
 use wcf\data\DatabaseObject;
 use wcf\data\ILinkableObject;
diff --git a/wcfsetup/install/files/lib/data/page/content/PageContentAction.class.php b/wcfsetup/install/files/lib/data/page/content/PageContentAction.class.php
index b3421e7fdd..80aaa87783 100644
--- a/wcfsetup/install/files/lib/data/page/content/PageContentAction.class.php
+++ b/wcfsetup/install/files/lib/data/page/content/PageContentAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\page\content;
 use wcf\data\AbstractDatabaseObjectAction;
 
diff --git a/wcfsetup/install/files/lib/data/page/content/PageContentEditor.class.php b/wcfsetup/install/files/lib/data/page/content/PageContentEditor.class.php
index 791b861316..7fece5c8e3 100644
--- a/wcfsetup/install/files/lib/data/page/content/PageContentEditor.class.php
+++ b/wcfsetup/install/files/lib/data/page/content/PageContentEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\page\content;
 use wcf\data\DatabaseObjectEditor;
 
diff --git a/wcfsetup/install/files/lib/data/page/content/PageContentList.class.php b/wcfsetup/install/files/lib/data/page/content/PageContentList.class.php
index 2c455711e1..e17969c706 100644
--- a/wcfsetup/install/files/lib/data/page/content/PageContentList.class.php
+++ b/wcfsetup/install/files/lib/data/page/content/PageContentList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\page\content;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/page/content/SearchResultPageContent.class.php b/wcfsetup/install/files/lib/data/page/content/SearchResultPageContent.class.php
index b086931807..150b344f0c 100644
--- a/wcfsetup/install/files/lib/data/page/content/SearchResultPageContent.class.php
+++ b/wcfsetup/install/files/lib/data/page/content/SearchResultPageContent.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\page\content;
 use wcf\data\search\ISearchResultObject;
 use wcf\data\DatabaseObjectDecorator;
diff --git a/wcfsetup/install/files/lib/data/page/content/SearchResultPageContentList.class.php b/wcfsetup/install/files/lib/data/page/content/SearchResultPageContentList.class.php
index 78896337c8..d9f7da25dc 100644
--- a/wcfsetup/install/files/lib/data/page/content/SearchResultPageContentList.class.php
+++ b/wcfsetup/install/files/lib/data/page/content/SearchResultPageContentList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\page\content;
 
 /**
diff --git a/wcfsetup/install/files/lib/data/paid/subscription/PaidSubscription.class.php b/wcfsetup/install/files/lib/data/paid/subscription/PaidSubscription.class.php
index 919a25040c..a5f3d96de1 100644
--- a/wcfsetup/install/files/lib/data/paid/subscription/PaidSubscription.class.php
+++ b/wcfsetup/install/files/lib/data/paid/subscription/PaidSubscription.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\paid\subscription;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\data\DatabaseObject;
diff --git a/wcfsetup/install/files/lib/data/paid/subscription/PaidSubscriptionAction.class.php b/wcfsetup/install/files/lib/data/paid/subscription/PaidSubscriptionAction.class.php
index 5bb3cb18ca..b464bf75c9 100644
--- a/wcfsetup/install/files/lib/data/paid/subscription/PaidSubscriptionAction.class.php
+++ b/wcfsetup/install/files/lib/data/paid/subscription/PaidSubscriptionAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\paid\subscription;
 use wcf\data\AbstractDatabaseObjectAction;
 use wcf\data\IToggleAction;
diff --git a/wcfsetup/install/files/lib/data/paid/subscription/PaidSubscriptionEditor.class.php b/wcfsetup/install/files/lib/data/paid/subscription/PaidSubscriptionEditor.class.php
index 33121b0bcb..59b703e64a 100644
--- a/wcfsetup/install/files/lib/data/paid/subscription/PaidSubscriptionEditor.class.php
+++ b/wcfsetup/install/files/lib/data/paid/subscription/PaidSubscriptionEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\paid\subscription;
 use wcf\data\DatabaseObjectEditor;
 use wcf\data\IEditableCachedObject;
diff --git a/wcfsetup/install/files/lib/data/paid/subscription/PaidSubscriptionList.class.php b/wcfsetup/install/files/lib/data/paid/subscription/PaidSubscriptionList.class.php
index d641565b33..7a2a531f68 100644
--- a/wcfsetup/install/files/lib/data/paid/subscription/PaidSubscriptionList.class.php
+++ b/wcfsetup/install/files/lib/data/paid/subscription/PaidSubscriptionList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\paid\subscription;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/paid/subscription/transaction/log/PaidSubscriptionTransactionLog.class.php b/wcfsetup/install/files/lib/data/paid/subscription/transaction/log/PaidSubscriptionTransactionLog.class.php
index 03977c6d59..ca23cefa53 100644
--- a/wcfsetup/install/files/lib/data/paid/subscription/transaction/log/PaidSubscriptionTransactionLog.class.php
+++ b/wcfsetup/install/files/lib/data/paid/subscription/transaction/log/PaidSubscriptionTransactionLog.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\paid\subscription\transaction\log;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\data\paid\subscription\PaidSubscription;
diff --git a/wcfsetup/install/files/lib/data/paid/subscription/transaction/log/PaidSubscriptionTransactionLogAction.class.php b/wcfsetup/install/files/lib/data/paid/subscription/transaction/log/PaidSubscriptionTransactionLogAction.class.php
index 3c83a7e0fe..81ede06137 100644
--- a/wcfsetup/install/files/lib/data/paid/subscription/transaction/log/PaidSubscriptionTransactionLogAction.class.php
+++ b/wcfsetup/install/files/lib/data/paid/subscription/transaction/log/PaidSubscriptionTransactionLogAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\paid\subscription\transaction\log;
 use wcf\data\AbstractDatabaseObjectAction;
 
diff --git a/wcfsetup/install/files/lib/data/paid/subscription/transaction/log/PaidSubscriptionTransactionLogEditor.class.php b/wcfsetup/install/files/lib/data/paid/subscription/transaction/log/PaidSubscriptionTransactionLogEditor.class.php
index 9cdf004fe6..dae28cbfae 100644
--- a/wcfsetup/install/files/lib/data/paid/subscription/transaction/log/PaidSubscriptionTransactionLogEditor.class.php
+++ b/wcfsetup/install/files/lib/data/paid/subscription/transaction/log/PaidSubscriptionTransactionLogEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\paid\subscription\transaction\log;
 use wcf\data\DatabaseObjectEditor;
 
diff --git a/wcfsetup/install/files/lib/data/paid/subscription/transaction/log/PaidSubscriptionTransactionLogList.class.php b/wcfsetup/install/files/lib/data/paid/subscription/transaction/log/PaidSubscriptionTransactionLogList.class.php
index 7e382d30e2..7ce3ce9355 100644
--- a/wcfsetup/install/files/lib/data/paid/subscription/transaction/log/PaidSubscriptionTransactionLogList.class.php
+++ b/wcfsetup/install/files/lib/data/paid/subscription/transaction/log/PaidSubscriptionTransactionLogList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\paid\subscription\transaction\log;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/paid/subscription/user/PaidSubscriptionUser.class.php b/wcfsetup/install/files/lib/data/paid/subscription/user/PaidSubscriptionUser.class.php
index 3d80f55c74..264b84685d 100644
--- a/wcfsetup/install/files/lib/data/paid/subscription/user/PaidSubscriptionUser.class.php
+++ b/wcfsetup/install/files/lib/data/paid/subscription/user/PaidSubscriptionUser.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\paid\subscription\user;
 use wcf\data\paid\subscription\PaidSubscription;
 use wcf\data\user\User;
diff --git a/wcfsetup/install/files/lib/data/paid/subscription/user/PaidSubscriptionUserAction.class.php b/wcfsetup/install/files/lib/data/paid/subscription/user/PaidSubscriptionUserAction.class.php
index 8c4d425eaf..686b188369 100644
--- a/wcfsetup/install/files/lib/data/paid/subscription/user/PaidSubscriptionUserAction.class.php
+++ b/wcfsetup/install/files/lib/data/paid/subscription/user/PaidSubscriptionUserAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\paid\subscription\user;
 use wcf\data\paid\subscription\PaidSubscription;
 use wcf\data\user\group\UserGroup;
diff --git a/wcfsetup/install/files/lib/data/paid/subscription/user/PaidSubscriptionUserEditor.class.php b/wcfsetup/install/files/lib/data/paid/subscription/user/PaidSubscriptionUserEditor.class.php
index cbdf703ced..ada874dc56 100644
--- a/wcfsetup/install/files/lib/data/paid/subscription/user/PaidSubscriptionUserEditor.class.php
+++ b/wcfsetup/install/files/lib/data/paid/subscription/user/PaidSubscriptionUserEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\paid\subscription\user;
 use wcf\data\DatabaseObjectEditor;
 
diff --git a/wcfsetup/install/files/lib/data/paid/subscription/user/PaidSubscriptionUserList.class.php b/wcfsetup/install/files/lib/data/paid/subscription/user/PaidSubscriptionUserList.class.php
index a2f99fc3fe..41acb3cdea 100644
--- a/wcfsetup/install/files/lib/data/paid/subscription/user/PaidSubscriptionUserList.class.php
+++ b/wcfsetup/install/files/lib/data/paid/subscription/user/PaidSubscriptionUserList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\paid\subscription\user;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/poll/Poll.class.php b/wcfsetup/install/files/lib/data/poll/Poll.class.php
index 14e6f9cfa6..f19d821bec 100644
--- a/wcfsetup/install/files/lib/data/poll/Poll.class.php
+++ b/wcfsetup/install/files/lib/data/poll/Poll.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\poll;
 use wcf\data\poll\option\PollOption;
 use wcf\data\DatabaseObject;
diff --git a/wcfsetup/install/files/lib/data/poll/PollAction.class.php b/wcfsetup/install/files/lib/data/poll/PollAction.class.php
index 09a5ba6c85..608b38a97f 100644
--- a/wcfsetup/install/files/lib/data/poll/PollAction.class.php
+++ b/wcfsetup/install/files/lib/data/poll/PollAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\poll;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\data\poll\option\PollOptionEditor;
diff --git a/wcfsetup/install/files/lib/data/poll/PollEditor.class.php b/wcfsetup/install/files/lib/data/poll/PollEditor.class.php
index 001ac1bde6..dc276ca040 100644
--- a/wcfsetup/install/files/lib/data/poll/PollEditor.class.php
+++ b/wcfsetup/install/files/lib/data/poll/PollEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\poll;
 use wcf\data\DatabaseObjectEditor;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/data/poll/PollList.class.php b/wcfsetup/install/files/lib/data/poll/PollList.class.php
index fcfced3053..9c47acf8a3 100644
--- a/wcfsetup/install/files/lib/data/poll/PollList.class.php
+++ b/wcfsetup/install/files/lib/data/poll/PollList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\poll;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/poll/option/PollOption.class.php b/wcfsetup/install/files/lib/data/poll/option/PollOption.class.php
index ace8a3f45e..18fc1c9d82 100644
--- a/wcfsetup/install/files/lib/data/poll/option/PollOption.class.php
+++ b/wcfsetup/install/files/lib/data/poll/option/PollOption.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\poll\option;
 use wcf\data\poll\Poll;
 use wcf\data\DatabaseObject;
diff --git a/wcfsetup/install/files/lib/data/poll/option/PollOptionAction.class.php b/wcfsetup/install/files/lib/data/poll/option/PollOptionAction.class.php
index c69cdd5524..017d4cd6f9 100644
--- a/wcfsetup/install/files/lib/data/poll/option/PollOptionAction.class.php
+++ b/wcfsetup/install/files/lib/data/poll/option/PollOptionAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\poll\option;
 use wcf\data\AbstractDatabaseObjectAction;
 
diff --git a/wcfsetup/install/files/lib/data/poll/option/PollOptionEditor.class.php b/wcfsetup/install/files/lib/data/poll/option/PollOptionEditor.class.php
index aac74cd830..a4a699e2a4 100644
--- a/wcfsetup/install/files/lib/data/poll/option/PollOptionEditor.class.php
+++ b/wcfsetup/install/files/lib/data/poll/option/PollOptionEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\poll\option;
 use wcf\data\DatabaseObjectEditor;
 
diff --git a/wcfsetup/install/files/lib/data/poll/option/PollOptionList.class.php b/wcfsetup/install/files/lib/data/poll/option/PollOptionList.class.php
index 2593501a71..3e52928241 100644
--- a/wcfsetup/install/files/lib/data/poll/option/PollOptionList.class.php
+++ b/wcfsetup/install/files/lib/data/poll/option/PollOptionList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\poll\option;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/search/ISearchResultObject.class.php b/wcfsetup/install/files/lib/data/search/ISearchResultObject.class.php
index b8bbdea1da..3d57769a0b 100644
--- a/wcfsetup/install/files/lib/data/search/ISearchResultObject.class.php
+++ b/wcfsetup/install/files/lib/data/search/ISearchResultObject.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\search;
 
 /**
diff --git a/wcfsetup/install/files/lib/data/search/Search.class.php b/wcfsetup/install/files/lib/data/search/Search.class.php
index 99a545c4cf..0d0749ff0a 100644
--- a/wcfsetup/install/files/lib/data/search/Search.class.php
+++ b/wcfsetup/install/files/lib/data/search/Search.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\search;
 use wcf\data\DatabaseObject;
 
diff --git a/wcfsetup/install/files/lib/data/search/SearchAction.class.php b/wcfsetup/install/files/lib/data/search/SearchAction.class.php
index 6bfc120264..4c454ba50f 100644
--- a/wcfsetup/install/files/lib/data/search/SearchAction.class.php
+++ b/wcfsetup/install/files/lib/data/search/SearchAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\search;
 use wcf\data\AbstractDatabaseObjectAction;
 
diff --git a/wcfsetup/install/files/lib/data/search/SearchEditor.class.php b/wcfsetup/install/files/lib/data/search/SearchEditor.class.php
index 21f062d083..3d8cec7f00 100644
--- a/wcfsetup/install/files/lib/data/search/SearchEditor.class.php
+++ b/wcfsetup/install/files/lib/data/search/SearchEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\search;
 use wcf\data\DatabaseObjectEditor;
 
diff --git a/wcfsetup/install/files/lib/data/search/SearchList.class.php b/wcfsetup/install/files/lib/data/search/SearchList.class.php
index bd7b00d7c7..fb7763af60 100644
--- a/wcfsetup/install/files/lib/data/search/SearchList.class.php
+++ b/wcfsetup/install/files/lib/data/search/SearchList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\search;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/search/keyword/SearchKeyword.class.php b/wcfsetup/install/files/lib/data/search/keyword/SearchKeyword.class.php
index 0e51b958d5..081c1a8e21 100644
--- a/wcfsetup/install/files/lib/data/search/keyword/SearchKeyword.class.php
+++ b/wcfsetup/install/files/lib/data/search/keyword/SearchKeyword.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\search\keyword;
 use wcf\data\DatabaseObject;
 
diff --git a/wcfsetup/install/files/lib/data/search/keyword/SearchKeywordAction.class.php b/wcfsetup/install/files/lib/data/search/keyword/SearchKeywordAction.class.php
index 17481dfab5..11c0f2f145 100644
--- a/wcfsetup/install/files/lib/data/search/keyword/SearchKeywordAction.class.php
+++ b/wcfsetup/install/files/lib/data/search/keyword/SearchKeywordAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\search\keyword;
 use wcf\data\AbstractDatabaseObjectAction;
 use wcf\data\ISearchAction;
diff --git a/wcfsetup/install/files/lib/data/search/keyword/SearchKeywordEditor.class.php b/wcfsetup/install/files/lib/data/search/keyword/SearchKeywordEditor.class.php
index a8c82b1759..4c2a6302b5 100644
--- a/wcfsetup/install/files/lib/data/search/keyword/SearchKeywordEditor.class.php
+++ b/wcfsetup/install/files/lib/data/search/keyword/SearchKeywordEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\search\keyword;
 use wcf\data\DatabaseObjectEditor;
 
diff --git a/wcfsetup/install/files/lib/data/search/keyword/SearchKeywordList.class.php b/wcfsetup/install/files/lib/data/search/keyword/SearchKeywordList.class.php
index 8f4dd678af..e21294a603 100644
--- a/wcfsetup/install/files/lib/data/search/keyword/SearchKeywordList.class.php
+++ b/wcfsetup/install/files/lib/data/search/keyword/SearchKeywordList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\search\keyword;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/session/Session.class.php b/wcfsetup/install/files/lib/data/session/Session.class.php
index e3d39e6a42..09d2a9780f 100644
--- a/wcfsetup/install/files/lib/data/session/Session.class.php
+++ b/wcfsetup/install/files/lib/data/session/Session.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\session;
 use wcf\data\acp\session\ACPSession;
 
diff --git a/wcfsetup/install/files/lib/data/session/SessionAction.class.php b/wcfsetup/install/files/lib/data/session/SessionAction.class.php
index 2806e42657..1be1164f9a 100644
--- a/wcfsetup/install/files/lib/data/session/SessionAction.class.php
+++ b/wcfsetup/install/files/lib/data/session/SessionAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\session;
 use wcf\data\AbstractDatabaseObjectAction;
 use wcf\system\event\EventHandler;
diff --git a/wcfsetup/install/files/lib/data/session/SessionEditor.class.php b/wcfsetup/install/files/lib/data/session/SessionEditor.class.php
index 4714e780d2..2040ed2ad4 100644
--- a/wcfsetup/install/files/lib/data/session/SessionEditor.class.php
+++ b/wcfsetup/install/files/lib/data/session/SessionEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\session;
 use wcf\data\acp\session\ACPSessionEditor;
 
diff --git a/wcfsetup/install/files/lib/data/session/SessionList.class.php b/wcfsetup/install/files/lib/data/session/SessionList.class.php
index a81481e161..df2e9577d0 100644
--- a/wcfsetup/install/files/lib/data/session/SessionList.class.php
+++ b/wcfsetup/install/files/lib/data/session/SessionList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\session;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/session/virtual/SessionVirtual.class.php b/wcfsetup/install/files/lib/data/session/virtual/SessionVirtual.class.php
index dfc486b044..6c3e242b5a 100644
--- a/wcfsetup/install/files/lib/data/session/virtual/SessionVirtual.class.php
+++ b/wcfsetup/install/files/lib/data/session/virtual/SessionVirtual.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\session\virtual;
 use wcf\data\acp\session\virtual\ACPSessionVirtual;
 
diff --git a/wcfsetup/install/files/lib/data/session/virtual/SessionVirtualAction.class.php b/wcfsetup/install/files/lib/data/session/virtual/SessionVirtualAction.class.php
index e8bd6a2597..b2a90454c8 100644
--- a/wcfsetup/install/files/lib/data/session/virtual/SessionVirtualAction.class.php
+++ b/wcfsetup/install/files/lib/data/session/virtual/SessionVirtualAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\session\virtual;
 use wcf\data\acp\session\virtual\ACPSessionVirtualAction;
 
diff --git a/wcfsetup/install/files/lib/data/session/virtual/SessionVirtualEditor.class.php b/wcfsetup/install/files/lib/data/session/virtual/SessionVirtualEditor.class.php
index c0ebbbf54e..ddc49195b6 100644
--- a/wcfsetup/install/files/lib/data/session/virtual/SessionVirtualEditor.class.php
+++ b/wcfsetup/install/files/lib/data/session/virtual/SessionVirtualEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\session\virtual;
 use wcf\data\acp\session\virtual\ACPSessionVirtualEditor;
 
diff --git a/wcfsetup/install/files/lib/data/session/virtual/SessionVirtualList.class.php b/wcfsetup/install/files/lib/data/session/virtual/SessionVirtualList.class.php
index 0833e3cc4f..bf74e07957 100644
--- a/wcfsetup/install/files/lib/data/session/virtual/SessionVirtualList.class.php
+++ b/wcfsetup/install/files/lib/data/session/virtual/SessionVirtualList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\session\virtual;
 use wcf\data\acp\session\virtual\ACPSessionVirtualList;
 
diff --git a/wcfsetup/install/files/lib/data/smiley/Smiley.class.php b/wcfsetup/install/files/lib/data/smiley/Smiley.class.php
index d744ee80e4..1c5c76a4c8 100644
--- a/wcfsetup/install/files/lib/data/smiley/Smiley.class.php
+++ b/wcfsetup/install/files/lib/data/smiley/Smiley.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\smiley;
 use wcf\data\DatabaseObject;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/data/smiley/SmileyAction.class.php b/wcfsetup/install/files/lib/data/smiley/SmileyAction.class.php
index befdf8693f..bd004ab3ab 100644
--- a/wcfsetup/install/files/lib/data/smiley/SmileyAction.class.php
+++ b/wcfsetup/install/files/lib/data/smiley/SmileyAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\smiley;
 use wcf\data\AbstractDatabaseObjectAction;
 use wcf\data\ISortableAction;
diff --git a/wcfsetup/install/files/lib/data/smiley/SmileyCache.class.php b/wcfsetup/install/files/lib/data/smiley/SmileyCache.class.php
index bc10633f88..69a65067fb 100644
--- a/wcfsetup/install/files/lib/data/smiley/SmileyCache.class.php
+++ b/wcfsetup/install/files/lib/data/smiley/SmileyCache.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\smiley;
 use wcf\data\category\Category;
 use wcf\data\smiley\category\SmileyCategory;
diff --git a/wcfsetup/install/files/lib/data/smiley/SmileyEditor.class.php b/wcfsetup/install/files/lib/data/smiley/SmileyEditor.class.php
index a5ac541394..721c4ac5be 100644
--- a/wcfsetup/install/files/lib/data/smiley/SmileyEditor.class.php
+++ b/wcfsetup/install/files/lib/data/smiley/SmileyEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\smiley;
 use wcf\data\DatabaseObjectEditor;
 use wcf\data\IEditableCachedObject;
diff --git a/wcfsetup/install/files/lib/data/smiley/SmileyList.class.php b/wcfsetup/install/files/lib/data/smiley/SmileyList.class.php
index 1ce8881b0b..e3b09e1fa9 100644
--- a/wcfsetup/install/files/lib/data/smiley/SmileyList.class.php
+++ b/wcfsetup/install/files/lib/data/smiley/SmileyList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\smiley;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/smiley/category/SmileyCategory.class.php b/wcfsetup/install/files/lib/data/smiley/category/SmileyCategory.class.php
index 7f1e1a9cd2..26b48b8842 100644
--- a/wcfsetup/install/files/lib/data/smiley/category/SmileyCategory.class.php
+++ b/wcfsetup/install/files/lib/data/smiley/category/SmileyCategory.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\smiley\category;
 use wcf\data\category\AbstractDecoratedCategory;
 use wcf\data\smiley\Smiley;
diff --git a/wcfsetup/install/files/lib/data/smiley/category/SmileyCategoryAction.class.php b/wcfsetup/install/files/lib/data/smiley/category/SmileyCategoryAction.class.php
index 51635c66b5..fdd1efe2f5 100644
--- a/wcfsetup/install/files/lib/data/smiley/category/SmileyCategoryAction.class.php
+++ b/wcfsetup/install/files/lib/data/smiley/category/SmileyCategoryAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\smiley\category;
 use wcf\data\category\Category;
 use wcf\data\category\CategoryEditor;
diff --git a/wcfsetup/install/files/lib/data/spider/Spider.class.php b/wcfsetup/install/files/lib/data/spider/Spider.class.php
index 7c70142f34..429cf8c59a 100644
--- a/wcfsetup/install/files/lib/data/spider/Spider.class.php
+++ b/wcfsetup/install/files/lib/data/spider/Spider.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\spider;
 use wcf\data\DatabaseObject;
 
diff --git a/wcfsetup/install/files/lib/data/spider/SpiderAction.class.php b/wcfsetup/install/files/lib/data/spider/SpiderAction.class.php
index b189472d8c..e53f4ef0b1 100644
--- a/wcfsetup/install/files/lib/data/spider/SpiderAction.class.php
+++ b/wcfsetup/install/files/lib/data/spider/SpiderAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\spider;
 use wcf\data\AbstractDatabaseObjectAction;
 
diff --git a/wcfsetup/install/files/lib/data/spider/SpiderEditor.class.php b/wcfsetup/install/files/lib/data/spider/SpiderEditor.class.php
index 4b5f22d76f..e56a503d38 100644
--- a/wcfsetup/install/files/lib/data/spider/SpiderEditor.class.php
+++ b/wcfsetup/install/files/lib/data/spider/SpiderEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\spider;
 use wcf\data\DatabaseObjectEditor;
 
diff --git a/wcfsetup/install/files/lib/data/spider/SpiderList.class.php b/wcfsetup/install/files/lib/data/spider/SpiderList.class.php
index 1905ca5f20..ede0bee592 100644
--- a/wcfsetup/install/files/lib/data/spider/SpiderList.class.php
+++ b/wcfsetup/install/files/lib/data/spider/SpiderList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\spider;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/stat/daily/StatDaily.class.php b/wcfsetup/install/files/lib/data/stat/daily/StatDaily.class.php
index bdad43fad2..2de8a2a2dd 100644
--- a/wcfsetup/install/files/lib/data/stat/daily/StatDaily.class.php
+++ b/wcfsetup/install/files/lib/data/stat/daily/StatDaily.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\stat\daily;
 use wcf\data\DatabaseObject;
 
diff --git a/wcfsetup/install/files/lib/data/stat/daily/StatDailyAction.class.php b/wcfsetup/install/files/lib/data/stat/daily/StatDailyAction.class.php
index ac62372822..54e4c6f8b2 100644
--- a/wcfsetup/install/files/lib/data/stat/daily/StatDailyAction.class.php
+++ b/wcfsetup/install/files/lib/data/stat/daily/StatDailyAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\stat\daily;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\data\AbstractDatabaseObjectAction;
diff --git a/wcfsetup/install/files/lib/data/stat/daily/StatDailyEditor.class.php b/wcfsetup/install/files/lib/data/stat/daily/StatDailyEditor.class.php
index 6fee6ceb4b..4f7ebe1d69 100644
--- a/wcfsetup/install/files/lib/data/stat/daily/StatDailyEditor.class.php
+++ b/wcfsetup/install/files/lib/data/stat/daily/StatDailyEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\stat\daily;
 use wcf\data\DatabaseObjectEditor;
 
diff --git a/wcfsetup/install/files/lib/data/stat/daily/StatDailyList.class.php b/wcfsetup/install/files/lib/data/stat/daily/StatDailyList.class.php
index e79cf4d7a4..9baf91b6c6 100644
--- a/wcfsetup/install/files/lib/data/stat/daily/StatDailyList.class.php
+++ b/wcfsetup/install/files/lib/data/stat/daily/StatDailyList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\stat\daily;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/style/ActiveStyle.class.php b/wcfsetup/install/files/lib/data/style/ActiveStyle.class.php
index cf8821ea16..5159167d5c 100644
--- a/wcfsetup/install/files/lib/data/style/ActiveStyle.class.php
+++ b/wcfsetup/install/files/lib/data/style/ActiveStyle.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\style;
 use wcf\data\DatabaseObjectDecorator;
 use wcf\system\request\RouteHandler;
diff --git a/wcfsetup/install/files/lib/data/style/Style.class.php b/wcfsetup/install/files/lib/data/style/Style.class.php
index dfb968a396..ff0d34703a 100644
--- a/wcfsetup/install/files/lib/data/style/Style.class.php
+++ b/wcfsetup/install/files/lib/data/style/Style.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\style;
 use wcf\data\DatabaseObject;
 use wcf\system\application\ApplicationHandler;
diff --git a/wcfsetup/install/files/lib/data/style/StyleAction.class.php b/wcfsetup/install/files/lib/data/style/StyleAction.class.php
index 20940e6941..5631a845e2 100644
--- a/wcfsetup/install/files/lib/data/style/StyleAction.class.php
+++ b/wcfsetup/install/files/lib/data/style/StyleAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\style;
 use wcf\data\user\cover\photo\UserCoverPhoto;
 use wcf\data\user\UserAction;
diff --git a/wcfsetup/install/files/lib/data/style/StyleEditor.class.php b/wcfsetup/install/files/lib/data/style/StyleEditor.class.php
index 95f1c7e4d6..52a3e72c3e 100644
--- a/wcfsetup/install/files/lib/data/style/StyleEditor.class.php
+++ b/wcfsetup/install/files/lib/data/style/StyleEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\style;
 use wcf\data\language\category\LanguageCategory;
 use wcf\data\language\LanguageList;
diff --git a/wcfsetup/install/files/lib/data/style/StyleList.class.php b/wcfsetup/install/files/lib/data/style/StyleList.class.php
index eddf05275b..368a28158f 100644
--- a/wcfsetup/install/files/lib/data/style/StyleList.class.php
+++ b/wcfsetup/install/files/lib/data/style/StyleList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\style;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/style/variable/StyleVariable.class.php b/wcfsetup/install/files/lib/data/style/variable/StyleVariable.class.php
index d63920307a..b472188714 100644
--- a/wcfsetup/install/files/lib/data/style/variable/StyleVariable.class.php
+++ b/wcfsetup/install/files/lib/data/style/variable/StyleVariable.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\style\variable;
 use wcf\data\DatabaseObject;
 
diff --git a/wcfsetup/install/files/lib/data/style/variable/StyleVariableAction.class.php b/wcfsetup/install/files/lib/data/style/variable/StyleVariableAction.class.php
index 57fbd520b1..9bf5b40c70 100644
--- a/wcfsetup/install/files/lib/data/style/variable/StyleVariableAction.class.php
+++ b/wcfsetup/install/files/lib/data/style/variable/StyleVariableAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\style\variable;
 use wcf\data\AbstractDatabaseObjectAction;
 
diff --git a/wcfsetup/install/files/lib/data/style/variable/StyleVariableEditor.class.php b/wcfsetup/install/files/lib/data/style/variable/StyleVariableEditor.class.php
index 051a09acc9..fdc85195d4 100644
--- a/wcfsetup/install/files/lib/data/style/variable/StyleVariableEditor.class.php
+++ b/wcfsetup/install/files/lib/data/style/variable/StyleVariableEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\style\variable;
 use wcf\data\DatabaseObjectEditor;
 
diff --git a/wcfsetup/install/files/lib/data/style/variable/StyleVariableList.class.php b/wcfsetup/install/files/lib/data/style/variable/StyleVariableList.class.php
index 17391429a9..106c5758d9 100644
--- a/wcfsetup/install/files/lib/data/style/variable/StyleVariableList.class.php
+++ b/wcfsetup/install/files/lib/data/style/variable/StyleVariableList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\style\variable;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/tag/Tag.class.php b/wcfsetup/install/files/lib/data/tag/Tag.class.php
index 3eb70e1130..13d8889f6a 100644
--- a/wcfsetup/install/files/lib/data/tag/Tag.class.php
+++ b/wcfsetup/install/files/lib/data/tag/Tag.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\tag;
 use wcf\data\DatabaseObject;
 use wcf\system\request\IRouteController;
diff --git a/wcfsetup/install/files/lib/data/tag/TagAction.class.php b/wcfsetup/install/files/lib/data/tag/TagAction.class.php
index ddf8f4601d..668acafa89 100644
--- a/wcfsetup/install/files/lib/data/tag/TagAction.class.php
+++ b/wcfsetup/install/files/lib/data/tag/TagAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\tag;
 use wcf\data\AbstractDatabaseObjectAction;
 use wcf\data\ISearchAction;
diff --git a/wcfsetup/install/files/lib/data/tag/TagCloudTag.class.php b/wcfsetup/install/files/lib/data/tag/TagCloudTag.class.php
index 2c7e39adad..8eb37a527f 100644
--- a/wcfsetup/install/files/lib/data/tag/TagCloudTag.class.php
+++ b/wcfsetup/install/files/lib/data/tag/TagCloudTag.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\tag;
 use wcf\data\DatabaseObjectDecorator;
 
diff --git a/wcfsetup/install/files/lib/data/tag/TagEditor.class.php b/wcfsetup/install/files/lib/data/tag/TagEditor.class.php
index 1d81c98bed..d14d2c16c9 100644
--- a/wcfsetup/install/files/lib/data/tag/TagEditor.class.php
+++ b/wcfsetup/install/files/lib/data/tag/TagEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\tag;
 use wcf\data\DatabaseObjectEditor;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/data/tag/TagList.class.php b/wcfsetup/install/files/lib/data/tag/TagList.class.php
index 51ca6f3a08..2ad6e41f7a 100644
--- a/wcfsetup/install/files/lib/data/tag/TagList.class.php
+++ b/wcfsetup/install/files/lib/data/tag/TagList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\tag;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/template/Template.class.php b/wcfsetup/install/files/lib/data/template/Template.class.php
index 0955ee9181..0d5288aa6e 100644
--- a/wcfsetup/install/files/lib/data/template/Template.class.php
+++ b/wcfsetup/install/files/lib/data/template/Template.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\template;
 use wcf\data\package\PackageCache;
 use wcf\data\DatabaseObject;
diff --git a/wcfsetup/install/files/lib/data/template/TemplateAction.class.php b/wcfsetup/install/files/lib/data/template/TemplateAction.class.php
index 29aa477353..d97953404e 100644
--- a/wcfsetup/install/files/lib/data/template/TemplateAction.class.php
+++ b/wcfsetup/install/files/lib/data/template/TemplateAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\template;
 use wcf\data\AbstractDatabaseObjectAction;
 use wcf\system\language\LanguageFactory;
diff --git a/wcfsetup/install/files/lib/data/template/TemplateEditor.class.php b/wcfsetup/install/files/lib/data/template/TemplateEditor.class.php
index 90026ac1e2..4b752d69bc 100644
--- a/wcfsetup/install/files/lib/data/template/TemplateEditor.class.php
+++ b/wcfsetup/install/files/lib/data/template/TemplateEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\template;
 use wcf\data\DatabaseObjectEditor;
 use wcf\system\io\File;
diff --git a/wcfsetup/install/files/lib/data/template/TemplateList.class.php b/wcfsetup/install/files/lib/data/template/TemplateList.class.php
index 8f6dffd1ce..708dba0c3b 100644
--- a/wcfsetup/install/files/lib/data/template/TemplateList.class.php
+++ b/wcfsetup/install/files/lib/data/template/TemplateList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\template;
 use wcf\data\package\PackageCache;
 use wcf\data\DatabaseObjectList;
diff --git a/wcfsetup/install/files/lib/data/template/group/TemplateGroup.class.php b/wcfsetup/install/files/lib/data/template/group/TemplateGroup.class.php
index 7168709fb6..a7db7c8e42 100644
--- a/wcfsetup/install/files/lib/data/template/group/TemplateGroup.class.php
+++ b/wcfsetup/install/files/lib/data/template/group/TemplateGroup.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\template\group;
 use wcf\data\DatabaseObject;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/data/template/group/TemplateGroupAction.class.php b/wcfsetup/install/files/lib/data/template/group/TemplateGroupAction.class.php
index 0269cbd27d..b1caec6b8c 100644
--- a/wcfsetup/install/files/lib/data/template/group/TemplateGroupAction.class.php
+++ b/wcfsetup/install/files/lib/data/template/group/TemplateGroupAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\template\group;
 use wcf\data\template\Template;
 use wcf\data\template\TemplateAction;
diff --git a/wcfsetup/install/files/lib/data/template/group/TemplateGroupEditor.class.php b/wcfsetup/install/files/lib/data/template/group/TemplateGroupEditor.class.php
index 2ebf804196..bfb1cf719d 100644
--- a/wcfsetup/install/files/lib/data/template/group/TemplateGroupEditor.class.php
+++ b/wcfsetup/install/files/lib/data/template/group/TemplateGroupEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\template\group;
 use wcf\data\package\PackageCache;
 use wcf\data\DatabaseObjectEditor;
diff --git a/wcfsetup/install/files/lib/data/template/group/TemplateGroupList.class.php b/wcfsetup/install/files/lib/data/template/group/TemplateGroupList.class.php
index cae3ace313..0942e7c20e 100644
--- a/wcfsetup/install/files/lib/data/template/group/TemplateGroupList.class.php
+++ b/wcfsetup/install/files/lib/data/template/group/TemplateGroupList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\template\group;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/template/listener/TemplateListener.class.php b/wcfsetup/install/files/lib/data/template/listener/TemplateListener.class.php
index 9b1e7d709c..844d4885c0 100644
--- a/wcfsetup/install/files/lib/data/template/listener/TemplateListener.class.php
+++ b/wcfsetup/install/files/lib/data/template/listener/TemplateListener.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\template\listener;
 use wcf\data\DatabaseObject;
 
diff --git a/wcfsetup/install/files/lib/data/template/listener/TemplateListenerAction.class.php b/wcfsetup/install/files/lib/data/template/listener/TemplateListenerAction.class.php
index 2654f4ae53..42c00777f0 100644
--- a/wcfsetup/install/files/lib/data/template/listener/TemplateListenerAction.class.php
+++ b/wcfsetup/install/files/lib/data/template/listener/TemplateListenerAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\template\listener;
 use wcf\data\AbstractDatabaseObjectAction;
 
diff --git a/wcfsetup/install/files/lib/data/template/listener/TemplateListenerEditor.class.php b/wcfsetup/install/files/lib/data/template/listener/TemplateListenerEditor.class.php
index f1704f9132..6c01a438cb 100644
--- a/wcfsetup/install/files/lib/data/template/listener/TemplateListenerEditor.class.php
+++ b/wcfsetup/install/files/lib/data/template/listener/TemplateListenerEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\template\listener;
 use wcf\data\DatabaseObjectEditor;
 
diff --git a/wcfsetup/install/files/lib/data/template/listener/TemplateListenerList.class.php b/wcfsetup/install/files/lib/data/template/listener/TemplateListenerList.class.php
index e9b5966598..668a4d9547 100644
--- a/wcfsetup/install/files/lib/data/template/listener/TemplateListenerList.class.php
+++ b/wcfsetup/install/files/lib/data/template/listener/TemplateListenerList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\template\listener;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/trophy/Trophy.class.php b/wcfsetup/install/files/lib/data/trophy/Trophy.class.php
index f3f6e0971b..0a2e7ef622 100644
--- a/wcfsetup/install/files/lib/data/trophy/Trophy.class.php
+++ b/wcfsetup/install/files/lib/data/trophy/Trophy.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\trophy;
 use wcf\data\condition\Condition;
 use wcf\data\trophy\category\TrophyCategory;
diff --git a/wcfsetup/install/files/lib/data/trophy/TrophyAction.class.php b/wcfsetup/install/files/lib/data/trophy/TrophyAction.class.php
index 048b37d055..d14135fc99 100644
--- a/wcfsetup/install/files/lib/data/trophy/TrophyAction.class.php
+++ b/wcfsetup/install/files/lib/data/trophy/TrophyAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\trophy;
 use wcf\data\user\trophy\UserTrophyAction;
 use wcf\data\user\trophy\UserTrophyList;
diff --git a/wcfsetup/install/files/lib/data/trophy/TrophyCache.class.php b/wcfsetup/install/files/lib/data/trophy/TrophyCache.class.php
index be248c80c4..fa88664402 100644
--- a/wcfsetup/install/files/lib/data/trophy/TrophyCache.class.php
+++ b/wcfsetup/install/files/lib/data/trophy/TrophyCache.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\trophy;
 use wcf\system\cache\builder\TrophyCacheBuilder;
 use wcf\system\SingletonFactory;
diff --git a/wcfsetup/install/files/lib/data/trophy/TrophyEditor.class.php b/wcfsetup/install/files/lib/data/trophy/TrophyEditor.class.php
index 9510a2d229..5a4857a3c3 100644
--- a/wcfsetup/install/files/lib/data/trophy/TrophyEditor.class.php
+++ b/wcfsetup/install/files/lib/data/trophy/TrophyEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\trophy;
 use wcf\data\DatabaseObjectEditor;
 use wcf\data\IEditableCachedObject;
diff --git a/wcfsetup/install/files/lib/data/trophy/TrophyList.class.php b/wcfsetup/install/files/lib/data/trophy/TrophyList.class.php
index 9182227e65..27d5ddb7b8 100644
--- a/wcfsetup/install/files/lib/data/trophy/TrophyList.class.php
+++ b/wcfsetup/install/files/lib/data/trophy/TrophyList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\trophy;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/trophy/category/TrophyCategory.class.php b/wcfsetup/install/files/lib/data/trophy/category/TrophyCategory.class.php
index 423143adda..fb0978c481 100644
--- a/wcfsetup/install/files/lib/data/trophy/category/TrophyCategory.class.php
+++ b/wcfsetup/install/files/lib/data/trophy/category/TrophyCategory.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\trophy\category;
 use wcf\data\category\AbstractDecoratedCategory;
 use wcf\data\trophy\Trophy;
diff --git a/wcfsetup/install/files/lib/data/trophy/category/TrophyCategoryCache.class.php b/wcfsetup/install/files/lib/data/trophy/category/TrophyCategoryCache.class.php
index afe79b7794..4e9d2e5100 100644
--- a/wcfsetup/install/files/lib/data/trophy/category/TrophyCategoryCache.class.php
+++ b/wcfsetup/install/files/lib/data/trophy/category/TrophyCategoryCache.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\trophy\category;
 use wcf\system\cache\builder\CategoryCacheBuilder;
 use wcf\system\SingletonFactory;
diff --git a/wcfsetup/install/files/lib/data/user/TeamList.class.php b/wcfsetup/install/files/lib/data/user/TeamList.class.php
index 0d997d0978..9829f0d5d9 100644
--- a/wcfsetup/install/files/lib/data/user/TeamList.class.php
+++ b/wcfsetup/install/files/lib/data/user/TeamList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user;
 use wcf\data\user\group\Team;
 use wcf\data\user\group\UserGroup;
diff --git a/wcfsetup/install/files/lib/data/user/User.class.php b/wcfsetup/install/files/lib/data/user/User.class.php
index d2a8130937..be436071fc 100644
--- a/wcfsetup/install/files/lib/data/user/User.class.php
+++ b/wcfsetup/install/files/lib/data/user/User.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user;
 use wcf\data\language\Language;
 use wcf\data\user\group\UserGroup;
diff --git a/wcfsetup/install/files/lib/data/user/UserAction.class.php b/wcfsetup/install/files/lib/data/user/UserAction.class.php
index 418a9f6cd0..bbd99b141c 100644
--- a/wcfsetup/install/files/lib/data/user/UserAction.class.php
+++ b/wcfsetup/install/files/lib/data/user/UserAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user;
 use wcf\data\user\avatar\UserAvatarAction;
 use wcf\data\user\group\UserGroup;
diff --git a/wcfsetup/install/files/lib/data/user/UserBirthdayAction.class.php b/wcfsetup/install/files/lib/data/user/UserBirthdayAction.class.php
index bdbf913e26..61c274275b 100644
--- a/wcfsetup/install/files/lib/data/user/UserBirthdayAction.class.php
+++ b/wcfsetup/install/files/lib/data/user/UserBirthdayAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user;
 use wcf\data\user\option\UserOption;
 use wcf\data\IGroupedUserListAction;
diff --git a/wcfsetup/install/files/lib/data/user/UserContentAction.class.php b/wcfsetup/install/files/lib/data/user/UserContentAction.class.php
index b793c8de21..22b8a2be2b 100644
--- a/wcfsetup/install/files/lib/data/user/UserContentAction.class.php
+++ b/wcfsetup/install/files/lib/data/user/UserContentAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user;
 use wcf\system\edit\EditHistoryManager;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/data/user/UserEditor.class.php b/wcfsetup/install/files/lib/data/user/UserEditor.class.php
index b12a64d048..da9be59968 100644
--- a/wcfsetup/install/files/lib/data/user/UserEditor.class.php
+++ b/wcfsetup/install/files/lib/data/user/UserEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user;
 use wcf\data\user\group\UserGroup;
 use wcf\data\DatabaseObjectEditor;
diff --git a/wcfsetup/install/files/lib/data/user/UserList.class.php b/wcfsetup/install/files/lib/data/user/UserList.class.php
index d4796c0956..6ebf10ff33 100644
--- a/wcfsetup/install/files/lib/data/user/UserList.class.php
+++ b/wcfsetup/install/files/lib/data/user/UserList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/user/UserProfile.class.php b/wcfsetup/install/files/lib/data/user/UserProfile.class.php
index 143c35a3d5..e1ccf77a01 100644
--- a/wcfsetup/install/files/lib/data/user/UserProfile.class.php
+++ b/wcfsetup/install/files/lib/data/user/UserProfile.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user;
 use wcf\data\trophy\Trophy;
 use wcf\data\trophy\TrophyCache;
diff --git a/wcfsetup/install/files/lib/data/user/UserProfileAction.class.php b/wcfsetup/install/files/lib/data/user/UserProfileAction.class.php
index d5462ef756..2e73375905 100644
--- a/wcfsetup/install/files/lib/data/user/UserProfileAction.class.php
+++ b/wcfsetup/install/files/lib/data/user/UserProfileAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\data\user\cover\photo\UserCoverPhoto;
diff --git a/wcfsetup/install/files/lib/data/user/UserProfileList.class.php b/wcfsetup/install/files/lib/data/user/UserProfileList.class.php
index cf50bb7418..967de6518f 100644
--- a/wcfsetup/install/files/lib/data/user/UserProfileList.class.php
+++ b/wcfsetup/install/files/lib/data/user/UserProfileList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user;
 
 /**
diff --git a/wcfsetup/install/files/lib/data/user/UserRegistrationAction.class.php b/wcfsetup/install/files/lib/data/user/UserRegistrationAction.class.php
index 2f04c1fc02..f38f15a0ba 100644
--- a/wcfsetup/install/files/lib/data/user/UserRegistrationAction.class.php
+++ b/wcfsetup/install/files/lib/data/user/UserRegistrationAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user;
 use wcf\util\UserRegistrationUtil;
 use wcf\util\UserUtil;
diff --git a/wcfsetup/install/files/lib/data/user/activity/event/UserActivityEvent.class.php b/wcfsetup/install/files/lib/data/user/activity/event/UserActivityEvent.class.php
index e3fef6d58b..3f70d9f135 100644
--- a/wcfsetup/install/files/lib/data/user/activity/event/UserActivityEvent.class.php
+++ b/wcfsetup/install/files/lib/data/user/activity/event/UserActivityEvent.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\activity\event;
 use wcf\data\DatabaseObject;
 
diff --git a/wcfsetup/install/files/lib/data/user/activity/event/UserActivityEventAction.class.php b/wcfsetup/install/files/lib/data/user/activity/event/UserActivityEventAction.class.php
index 357c3d800f..d9920d82ff 100644
--- a/wcfsetup/install/files/lib/data/user/activity/event/UserActivityEventAction.class.php
+++ b/wcfsetup/install/files/lib/data/user/activity/event/UserActivityEventAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\activity\event;
 use wcf\data\box\Box;
 use wcf\data\user\User;
diff --git a/wcfsetup/install/files/lib/data/user/activity/event/UserActivityEventEditor.class.php b/wcfsetup/install/files/lib/data/user/activity/event/UserActivityEventEditor.class.php
index cdc4dfc6ae..3e5e71b16c 100644
--- a/wcfsetup/install/files/lib/data/user/activity/event/UserActivityEventEditor.class.php
+++ b/wcfsetup/install/files/lib/data/user/activity/event/UserActivityEventEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\activity\event;
 use wcf\data\DatabaseObjectEditor;
 
diff --git a/wcfsetup/install/files/lib/data/user/activity/event/UserActivityEventList.class.php b/wcfsetup/install/files/lib/data/user/activity/event/UserActivityEventList.class.php
index bab5fc2738..ba0f592b75 100644
--- a/wcfsetup/install/files/lib/data/user/activity/event/UserActivityEventList.class.php
+++ b/wcfsetup/install/files/lib/data/user/activity/event/UserActivityEventList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\activity\event;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/user/activity/event/ViewableUserActivityEvent.class.php b/wcfsetup/install/files/lib/data/user/activity/event/ViewableUserActivityEvent.class.php
index 17f8f6fec9..e78888348c 100644
--- a/wcfsetup/install/files/lib/data/user/activity/event/ViewableUserActivityEvent.class.php
+++ b/wcfsetup/install/files/lib/data/user/activity/event/ViewableUserActivityEvent.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\activity\event;
 use wcf\data\user\UserProfile;
 use wcf\data\DatabaseObjectDecorator;
diff --git a/wcfsetup/install/files/lib/data/user/activity/event/ViewableUserActivityEventList.class.php b/wcfsetup/install/files/lib/data/user/activity/event/ViewableUserActivityEventList.class.php
index 605f6a6336..92125dcb61 100644
--- a/wcfsetup/install/files/lib/data/user/activity/event/ViewableUserActivityEventList.class.php
+++ b/wcfsetup/install/files/lib/data/user/activity/event/ViewableUserActivityEventList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\activity\event;
 use wcf\system\cache\runtime\UserProfileRuntimeCache;
 use wcf\system\language\LanguageFactory;
diff --git a/wcfsetup/install/files/lib/data/user/authentication/failure/UserAuthenticationFailure.class.php b/wcfsetup/install/files/lib/data/user/authentication/failure/UserAuthenticationFailure.class.php
index a65d402356..25be2262fd 100644
--- a/wcfsetup/install/files/lib/data/user/authentication/failure/UserAuthenticationFailure.class.php
+++ b/wcfsetup/install/files/lib/data/user/authentication/failure/UserAuthenticationFailure.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\authentication\failure;
 use wcf\data\DatabaseObject;
 use wcf\util\UserUtil;
diff --git a/wcfsetup/install/files/lib/data/user/authentication/failure/UserAuthenticationFailureAction.class.php b/wcfsetup/install/files/lib/data/user/authentication/failure/UserAuthenticationFailureAction.class.php
index fd1eafe6e6..a2143c5651 100644
--- a/wcfsetup/install/files/lib/data/user/authentication/failure/UserAuthenticationFailureAction.class.php
+++ b/wcfsetup/install/files/lib/data/user/authentication/failure/UserAuthenticationFailureAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\authentication\failure;
 use wcf\data\AbstractDatabaseObjectAction;
 
diff --git a/wcfsetup/install/files/lib/data/user/authentication/failure/UserAuthenticationFailureEditor.class.php b/wcfsetup/install/files/lib/data/user/authentication/failure/UserAuthenticationFailureEditor.class.php
index 54753a2df4..0a24202383 100644
--- a/wcfsetup/install/files/lib/data/user/authentication/failure/UserAuthenticationFailureEditor.class.php
+++ b/wcfsetup/install/files/lib/data/user/authentication/failure/UserAuthenticationFailureEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\authentication\failure;
 use wcf\data\DatabaseObjectEditor;
 
diff --git a/wcfsetup/install/files/lib/data/user/authentication/failure/UserAuthenticationFailureList.class.php b/wcfsetup/install/files/lib/data/user/authentication/failure/UserAuthenticationFailureList.class.php
index 3cfcafbf61..e6bb15ec21 100644
--- a/wcfsetup/install/files/lib/data/user/authentication/failure/UserAuthenticationFailureList.class.php
+++ b/wcfsetup/install/files/lib/data/user/authentication/failure/UserAuthenticationFailureList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\authentication\failure;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/user/avatar/DefaultAvatar.class.php b/wcfsetup/install/files/lib/data/user/avatar/DefaultAvatar.class.php
index c32b9fad04..b80bfbec36 100644
--- a/wcfsetup/install/files/lib/data/user/avatar/DefaultAvatar.class.php
+++ b/wcfsetup/install/files/lib/data/user/avatar/DefaultAvatar.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\avatar;
 use wcf\system\WCF;
 use wcf\util\StringUtil;
diff --git a/wcfsetup/install/files/lib/data/user/avatar/Gravatar.class.php b/wcfsetup/install/files/lib/data/user/avatar/Gravatar.class.php
index e53e862252..1d482ff8ae 100644
--- a/wcfsetup/install/files/lib/data/user/avatar/Gravatar.class.php
+++ b/wcfsetup/install/files/lib/data/user/avatar/Gravatar.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\avatar;
 use wcf\system\exception\SystemException;
 use wcf\system\request\LinkHandler;
diff --git a/wcfsetup/install/files/lib/data/user/avatar/IUserAvatar.class.php b/wcfsetup/install/files/lib/data/user/avatar/IUserAvatar.class.php
index 56e3860b4e..ef6fddd8f6 100644
--- a/wcfsetup/install/files/lib/data/user/avatar/IUserAvatar.class.php
+++ b/wcfsetup/install/files/lib/data/user/avatar/IUserAvatar.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\avatar;
 
 /**
diff --git a/wcfsetup/install/files/lib/data/user/avatar/UserAvatar.class.php b/wcfsetup/install/files/lib/data/user/avatar/UserAvatar.class.php
index 00fad81087..e78cbb88b9 100644
--- a/wcfsetup/install/files/lib/data/user/avatar/UserAvatar.class.php
+++ b/wcfsetup/install/files/lib/data/user/avatar/UserAvatar.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\avatar;
 use wcf\data\DatabaseObject;
 use wcf\util\StringUtil;
diff --git a/wcfsetup/install/files/lib/data/user/avatar/UserAvatarAction.class.php b/wcfsetup/install/files/lib/data/user/avatar/UserAvatarAction.class.php
index 2005643444..5cd7b6ecf1 100644
--- a/wcfsetup/install/files/lib/data/user/avatar/UserAvatarAction.class.php
+++ b/wcfsetup/install/files/lib/data/user/avatar/UserAvatarAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\avatar;
 use wcf\data\user\User;
 use wcf\data\user\UserEditor;
diff --git a/wcfsetup/install/files/lib/data/user/avatar/UserAvatarEditor.class.php b/wcfsetup/install/files/lib/data/user/avatar/UserAvatarEditor.class.php
index 56f9cf664a..bf09ab567d 100644
--- a/wcfsetup/install/files/lib/data/user/avatar/UserAvatarEditor.class.php
+++ b/wcfsetup/install/files/lib/data/user/avatar/UserAvatarEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\avatar;
 use wcf\data\DatabaseObjectEditor;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/data/user/avatar/UserAvatarList.class.php b/wcfsetup/install/files/lib/data/user/avatar/UserAvatarList.class.php
index 570f2d924e..5ea84f69ed 100644
--- a/wcfsetup/install/files/lib/data/user/avatar/UserAvatarList.class.php
+++ b/wcfsetup/install/files/lib/data/user/avatar/UserAvatarList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\avatar;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/user/cover/photo/DefaultUserCoverPhoto.class.php b/wcfsetup/install/files/lib/data/user/cover/photo/DefaultUserCoverPhoto.class.php
index d1361f84f4..db3cb4474d 100644
--- a/wcfsetup/install/files/lib/data/user/cover/photo/DefaultUserCoverPhoto.class.php
+++ b/wcfsetup/install/files/lib/data/user/cover/photo/DefaultUserCoverPhoto.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\cover\photo;
 use wcf\system\style\StyleHandler;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/data/user/cover/photo/IUserCoverPhoto.class.php b/wcfsetup/install/files/lib/data/user/cover/photo/IUserCoverPhoto.class.php
index 47508442e7..d68c9e9fa1 100644
--- a/wcfsetup/install/files/lib/data/user/cover/photo/IUserCoverPhoto.class.php
+++ b/wcfsetup/install/files/lib/data/user/cover/photo/IUserCoverPhoto.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\cover\photo;
 
 /**
diff --git a/wcfsetup/install/files/lib/data/user/cover/photo/UserCoverPhoto.class.php b/wcfsetup/install/files/lib/data/user/cover/photo/UserCoverPhoto.class.php
index 651c58d2ce..eef4c07b60 100644
--- a/wcfsetup/install/files/lib/data/user/cover/photo/UserCoverPhoto.class.php
+++ b/wcfsetup/install/files/lib/data/user/cover/photo/UserCoverPhoto.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\cover\photo;
 use wcf\system\WCF;
 
diff --git a/wcfsetup/install/files/lib/data/user/follow/UserFollow.class.php b/wcfsetup/install/files/lib/data/user/follow/UserFollow.class.php
index 788d5a8f62..a3d9d1a1dc 100644
--- a/wcfsetup/install/files/lib/data/user/follow/UserFollow.class.php
+++ b/wcfsetup/install/files/lib/data/user/follow/UserFollow.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\follow;
 use wcf\data\DatabaseObject;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/data/user/follow/UserFollowAction.class.php b/wcfsetup/install/files/lib/data/user/follow/UserFollowAction.class.php
index 2b5ec82932..1c27662d4e 100644
--- a/wcfsetup/install/files/lib/data/user/follow/UserFollowAction.class.php
+++ b/wcfsetup/install/files/lib/data/user/follow/UserFollowAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\follow;
 use wcf\data\user\UserProfile;
 use wcf\data\AbstractDatabaseObjectAction;
diff --git a/wcfsetup/install/files/lib/data/user/follow/UserFollowEditor.class.php b/wcfsetup/install/files/lib/data/user/follow/UserFollowEditor.class.php
index 9f3305b86a..c9984c93dc 100644
--- a/wcfsetup/install/files/lib/data/user/follow/UserFollowEditor.class.php
+++ b/wcfsetup/install/files/lib/data/user/follow/UserFollowEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\follow;
 use wcf\data\DatabaseObjectEditor;
 
diff --git a/wcfsetup/install/files/lib/data/user/follow/UserFollowList.class.php b/wcfsetup/install/files/lib/data/user/follow/UserFollowList.class.php
index 39e417e9c5..f391159a7e 100644
--- a/wcfsetup/install/files/lib/data/user/follow/UserFollowList.class.php
+++ b/wcfsetup/install/files/lib/data/user/follow/UserFollowList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\follow;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/user/follow/UserFollowerList.class.php b/wcfsetup/install/files/lib/data/user/follow/UserFollowerList.class.php
index 75c56d2147..4784d11d63 100644
--- a/wcfsetup/install/files/lib/data/user/follow/UserFollowerList.class.php
+++ b/wcfsetup/install/files/lib/data/user/follow/UserFollowerList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\follow;
 use wcf\data\user\User;
 use wcf\data\user\UserProfile;
diff --git a/wcfsetup/install/files/lib/data/user/follow/UserFollowingAction.class.php b/wcfsetup/install/files/lib/data/user/follow/UserFollowingAction.class.php
index 42e1e3e81f..bb830129e4 100644
--- a/wcfsetup/install/files/lib/data/user/follow/UserFollowingAction.class.php
+++ b/wcfsetup/install/files/lib/data/user/follow/UserFollowingAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\follow;
 use wcf\system\cache\runtime\UserProfileRuntimeCache;
 use wcf\system\exception\PermissionDeniedException;
diff --git a/wcfsetup/install/files/lib/data/user/follow/UserFollowingList.class.php b/wcfsetup/install/files/lib/data/user/follow/UserFollowingList.class.php
index 59488c2ca8..b0a1d12524 100644
--- a/wcfsetup/install/files/lib/data/user/follow/UserFollowingList.class.php
+++ b/wcfsetup/install/files/lib/data/user/follow/UserFollowingList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\follow;
 
 /**
diff --git a/wcfsetup/install/files/lib/data/user/group/Team.class.php b/wcfsetup/install/files/lib/data/user/group/Team.class.php
index f4681617d1..f92ef42e75 100644
--- a/wcfsetup/install/files/lib/data/user/group/Team.class.php
+++ b/wcfsetup/install/files/lib/data/user/group/Team.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\group;
 use wcf\data\user\UserProfile;
 use wcf\data\DatabaseObjectDecorator;
diff --git a/wcfsetup/install/files/lib/data/user/group/UserGroup.class.php b/wcfsetup/install/files/lib/data/user/group/UserGroup.class.php
index e572b25086..6d6087baf9 100644
--- a/wcfsetup/install/files/lib/data/user/group/UserGroup.class.php
+++ b/wcfsetup/install/files/lib/data/user/group/UserGroup.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\group;
 use wcf\data\user\User;
 use wcf\data\DatabaseObject;
diff --git a/wcfsetup/install/files/lib/data/user/group/UserGroupAction.class.php b/wcfsetup/install/files/lib/data/user/group/UserGroupAction.class.php
index 438c0d6a7d..56d07fdc70 100644
--- a/wcfsetup/install/files/lib/data/user/group/UserGroupAction.class.php
+++ b/wcfsetup/install/files/lib/data/user/group/UserGroupAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\group;
 use wcf\data\AbstractDatabaseObjectAction;
 use wcf\system\cache\CacheHandler;
diff --git a/wcfsetup/install/files/lib/data/user/group/UserGroupEditor.class.php b/wcfsetup/install/files/lib/data/user/group/UserGroupEditor.class.php
index 3fbb98bbd3..d7806831b4 100644
--- a/wcfsetup/install/files/lib/data/user/group/UserGroupEditor.class.php
+++ b/wcfsetup/install/files/lib/data/user/group/UserGroupEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\group;
 use wcf\data\DatabaseObjectEditor;
 use wcf\data\IEditableCachedObject;
diff --git a/wcfsetup/install/files/lib/data/user/group/UserGroupList.class.php b/wcfsetup/install/files/lib/data/user/group/UserGroupList.class.php
index 0aa474a22d..b05bbd9f16 100644
--- a/wcfsetup/install/files/lib/data/user/group/UserGroupList.class.php
+++ b/wcfsetup/install/files/lib/data/user/group/UserGroupList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\group;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/user/group/assignment/UserGroupAssignment.class.php b/wcfsetup/install/files/lib/data/user/group/assignment/UserGroupAssignment.class.php
index fc33ae06cc..6afac964d7 100644
--- a/wcfsetup/install/files/lib/data/user/group/assignment/UserGroupAssignment.class.php
+++ b/wcfsetup/install/files/lib/data/user/group/assignment/UserGroupAssignment.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\group\assignment;
 use wcf\data\condition\Condition;
 use wcf\data\user\group\UserGroup;
diff --git a/wcfsetup/install/files/lib/data/user/group/assignment/UserGroupAssignmentAction.class.php b/wcfsetup/install/files/lib/data/user/group/assignment/UserGroupAssignmentAction.class.php
index 9bcf7ad312..518b6aebea 100644
--- a/wcfsetup/install/files/lib/data/user/group/assignment/UserGroupAssignmentAction.class.php
+++ b/wcfsetup/install/files/lib/data/user/group/assignment/UserGroupAssignmentAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\group\assignment;
 use wcf\data\AbstractDatabaseObjectAction;
 use wcf\data\IToggleAction;
diff --git a/wcfsetup/install/files/lib/data/user/group/assignment/UserGroupAssignmentEditor.class.php b/wcfsetup/install/files/lib/data/user/group/assignment/UserGroupAssignmentEditor.class.php
index b4f796b043..7d8f73e3b2 100644
--- a/wcfsetup/install/files/lib/data/user/group/assignment/UserGroupAssignmentEditor.class.php
+++ b/wcfsetup/install/files/lib/data/user/group/assignment/UserGroupAssignmentEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\group\assignment;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\data\DatabaseObjectEditor;
diff --git a/wcfsetup/install/files/lib/data/user/group/assignment/UserGroupAssignmentList.class.php b/wcfsetup/install/files/lib/data/user/group/assignment/UserGroupAssignmentList.class.php
index 85c1a861c0..5a682e6aca 100644
--- a/wcfsetup/install/files/lib/data/user/group/assignment/UserGroupAssignmentList.class.php
+++ b/wcfsetup/install/files/lib/data/user/group/assignment/UserGroupAssignmentList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\group\assignment;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/user/group/option/UserGroupOption.class.php b/wcfsetup/install/files/lib/data/user/group/option/UserGroupOption.class.php
index 147f7e3950..6fd4724fa8 100644
--- a/wcfsetup/install/files/lib/data/user/group/option/UserGroupOption.class.php
+++ b/wcfsetup/install/files/lib/data/user/group/option/UserGroupOption.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\group\option;
 use wcf\data\option\Option;
 
diff --git a/wcfsetup/install/files/lib/data/user/group/option/UserGroupOptionAction.class.php b/wcfsetup/install/files/lib/data/user/group/option/UserGroupOptionAction.class.php
index 3940221e0a..6c55d90c54 100644
--- a/wcfsetup/install/files/lib/data/user/group/option/UserGroupOptionAction.class.php
+++ b/wcfsetup/install/files/lib/data/user/group/option/UserGroupOptionAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\group\option;
 use wcf\data\user\group\UserGroupEditor;
 use wcf\data\AbstractDatabaseObjectAction;
diff --git a/wcfsetup/install/files/lib/data/user/group/option/UserGroupOptionEditor.class.php b/wcfsetup/install/files/lib/data/user/group/option/UserGroupOptionEditor.class.php
index ab5c658ee7..6a374608b6 100644
--- a/wcfsetup/install/files/lib/data/user/group/option/UserGroupOptionEditor.class.php
+++ b/wcfsetup/install/files/lib/data/user/group/option/UserGroupOptionEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\group\option;
 use wcf\data\DatabaseObjectEditor;
 use wcf\data\IEditableCachedObject;
diff --git a/wcfsetup/install/files/lib/data/user/group/option/UserGroupOptionList.class.php b/wcfsetup/install/files/lib/data/user/group/option/UserGroupOptionList.class.php
index be20ceb636..297842bbef 100644
--- a/wcfsetup/install/files/lib/data/user/group/option/UserGroupOptionList.class.php
+++ b/wcfsetup/install/files/lib/data/user/group/option/UserGroupOptionList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\group\option;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/user/group/option/category/UserGroupOptionCategory.class.php b/wcfsetup/install/files/lib/data/user/group/option/category/UserGroupOptionCategory.class.php
index c2b8cf1358..7b7d75c3a2 100644
--- a/wcfsetup/install/files/lib/data/user/group/option/category/UserGroupOptionCategory.class.php
+++ b/wcfsetup/install/files/lib/data/user/group/option/category/UserGroupOptionCategory.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\group\option\category;
 use wcf\data\DatabaseObject;
 use wcf\data\TDatabaseObjectOptions;
diff --git a/wcfsetup/install/files/lib/data/user/group/option/category/UserGroupOptionCategoryAction.class.php b/wcfsetup/install/files/lib/data/user/group/option/category/UserGroupOptionCategoryAction.class.php
index 4f99303aca..b222c8a92b 100644
--- a/wcfsetup/install/files/lib/data/user/group/option/category/UserGroupOptionCategoryAction.class.php
+++ b/wcfsetup/install/files/lib/data/user/group/option/category/UserGroupOptionCategoryAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\group\option\category;
 use wcf\data\AbstractDatabaseObjectAction;
 
diff --git a/wcfsetup/install/files/lib/data/user/group/option/category/UserGroupOptionCategoryEditor.class.php b/wcfsetup/install/files/lib/data/user/group/option/category/UserGroupOptionCategoryEditor.class.php
index a2dbe7aae0..de59274428 100644
--- a/wcfsetup/install/files/lib/data/user/group/option/category/UserGroupOptionCategoryEditor.class.php
+++ b/wcfsetup/install/files/lib/data/user/group/option/category/UserGroupOptionCategoryEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\group\option\category;
 use wcf\data\DatabaseObjectEditor;
 
diff --git a/wcfsetup/install/files/lib/data/user/group/option/category/UserGroupOptionCategoryList.class.php b/wcfsetup/install/files/lib/data/user/group/option/category/UserGroupOptionCategoryList.class.php
index 4b8dbbd831..e315ffcbf0 100644
--- a/wcfsetup/install/files/lib/data/user/group/option/category/UserGroupOptionCategoryList.class.php
+++ b/wcfsetup/install/files/lib/data/user/group/option/category/UserGroupOptionCategoryList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\group\option\category;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/user/ignore/UserIgnore.class.php b/wcfsetup/install/files/lib/data/user/ignore/UserIgnore.class.php
index 320dff8a02..fb4d2fa250 100644
--- a/wcfsetup/install/files/lib/data/user/ignore/UserIgnore.class.php
+++ b/wcfsetup/install/files/lib/data/user/ignore/UserIgnore.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\ignore;
 use wcf\data\DatabaseObject;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/data/user/ignore/UserIgnoreAction.class.php b/wcfsetup/install/files/lib/data/user/ignore/UserIgnoreAction.class.php
index 22558f60d9..b192be2d8e 100644
--- a/wcfsetup/install/files/lib/data/user/ignore/UserIgnoreAction.class.php
+++ b/wcfsetup/install/files/lib/data/user/ignore/UserIgnoreAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\ignore;
 use wcf\data\user\follow\UserFollow;
 use wcf\data\user\follow\UserFollowEditor;
diff --git a/wcfsetup/install/files/lib/data/user/ignore/UserIgnoreEditor.class.php b/wcfsetup/install/files/lib/data/user/ignore/UserIgnoreEditor.class.php
index 28d47f67c1..76fba35b3c 100644
--- a/wcfsetup/install/files/lib/data/user/ignore/UserIgnoreEditor.class.php
+++ b/wcfsetup/install/files/lib/data/user/ignore/UserIgnoreEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\ignore;
 use wcf\data\DatabaseObjectEditor;
 
diff --git a/wcfsetup/install/files/lib/data/user/ignore/UserIgnoreList.class.php b/wcfsetup/install/files/lib/data/user/ignore/UserIgnoreList.class.php
index b4d281de40..3f48edf33b 100644
--- a/wcfsetup/install/files/lib/data/user/ignore/UserIgnoreList.class.php
+++ b/wcfsetup/install/files/lib/data/user/ignore/UserIgnoreList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\ignore;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/user/ignore/ViewableUserIgnoreList.class.php b/wcfsetup/install/files/lib/data/user/ignore/ViewableUserIgnoreList.class.php
index e2b60a9a76..e07d3a0c50 100644
--- a/wcfsetup/install/files/lib/data/user/ignore/ViewableUserIgnoreList.class.php
+++ b/wcfsetup/install/files/lib/data/user/ignore/ViewableUserIgnoreList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\ignore;
 use wcf\data\user\User;
 use wcf\data\user\UserProfile;
diff --git a/wcfsetup/install/files/lib/data/user/menu/item/UserMenuItem.class.php b/wcfsetup/install/files/lib/data/user/menu/item/UserMenuItem.class.php
index 16332fe912..c79176360c 100644
--- a/wcfsetup/install/files/lib/data/user/menu/item/UserMenuItem.class.php
+++ b/wcfsetup/install/files/lib/data/user/menu/item/UserMenuItem.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\menu\item;
 use wcf\data\ProcessibleDatabaseObject;
 use wcf\system\menu\user\DefaultUserMenuItemProvider;
diff --git a/wcfsetup/install/files/lib/data/user/menu/item/UserMenuItemAction.class.php b/wcfsetup/install/files/lib/data/user/menu/item/UserMenuItemAction.class.php
index 148d95f122..4724bb8764 100644
--- a/wcfsetup/install/files/lib/data/user/menu/item/UserMenuItemAction.class.php
+++ b/wcfsetup/install/files/lib/data/user/menu/item/UserMenuItemAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\menu\item;
 use wcf\data\AbstractDatabaseObjectAction;
 
diff --git a/wcfsetup/install/files/lib/data/user/menu/item/UserMenuItemEditor.class.php b/wcfsetup/install/files/lib/data/user/menu/item/UserMenuItemEditor.class.php
index 52d2c513ae..38697ad0a0 100644
--- a/wcfsetup/install/files/lib/data/user/menu/item/UserMenuItemEditor.class.php
+++ b/wcfsetup/install/files/lib/data/user/menu/item/UserMenuItemEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\menu\item;
 use wcf\data\DatabaseObjectEditor;
 
diff --git a/wcfsetup/install/files/lib/data/user/menu/item/UserMenuItemList.class.php b/wcfsetup/install/files/lib/data/user/menu/item/UserMenuItemList.class.php
index 17decc1292..7ec754ce16 100644
--- a/wcfsetup/install/files/lib/data/user/menu/item/UserMenuItemList.class.php
+++ b/wcfsetup/install/files/lib/data/user/menu/item/UserMenuItemList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\menu\item;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/user/notification/UserNotification.class.php b/wcfsetup/install/files/lib/data/user/notification/UserNotification.class.php
index 34247b45c8..b534a27005 100644
--- a/wcfsetup/install/files/lib/data/user/notification/UserNotification.class.php
+++ b/wcfsetup/install/files/lib/data/user/notification/UserNotification.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\notification;
 use wcf\data\DatabaseObject;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/data/user/notification/UserNotificationAction.class.php b/wcfsetup/install/files/lib/data/user/notification/UserNotificationAction.class.php
index e0706625e9..ed641e35ec 100644
--- a/wcfsetup/install/files/lib/data/user/notification/UserNotificationAction.class.php
+++ b/wcfsetup/install/files/lib/data/user/notification/UserNotificationAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\notification;
 use wcf\data\AbstractDatabaseObjectAction;
 use wcf\system\exception\PermissionDeniedException;
diff --git a/wcfsetup/install/files/lib/data/user/notification/UserNotificationEditor.class.php b/wcfsetup/install/files/lib/data/user/notification/UserNotificationEditor.class.php
index 3e52f49041..310ca76603 100644
--- a/wcfsetup/install/files/lib/data/user/notification/UserNotificationEditor.class.php
+++ b/wcfsetup/install/files/lib/data/user/notification/UserNotificationEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\notification;
 use wcf\data\DatabaseObjectEditor;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/data/user/notification/UserNotificationList.class.php b/wcfsetup/install/files/lib/data/user/notification/UserNotificationList.class.php
index 775b757a3d..3e9d2849e4 100644
--- a/wcfsetup/install/files/lib/data/user/notification/UserNotificationList.class.php
+++ b/wcfsetup/install/files/lib/data/user/notification/UserNotificationList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\notification;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/user/notification/event/UserNotificationEvent.class.php b/wcfsetup/install/files/lib/data/user/notification/event/UserNotificationEvent.class.php
index 88882fd58b..3745c7e355 100644
--- a/wcfsetup/install/files/lib/data/user/notification/event/UserNotificationEvent.class.php
+++ b/wcfsetup/install/files/lib/data/user/notification/event/UserNotificationEvent.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\notification\event;
 use wcf\data\ProcessibleDatabaseObject;
 use wcf\data\TDatabaseObjectOptions;
diff --git a/wcfsetup/install/files/lib/data/user/notification/event/UserNotificationEventAction.class.php b/wcfsetup/install/files/lib/data/user/notification/event/UserNotificationEventAction.class.php
index f1f922df33..2226ac0ac7 100644
--- a/wcfsetup/install/files/lib/data/user/notification/event/UserNotificationEventAction.class.php
+++ b/wcfsetup/install/files/lib/data/user/notification/event/UserNotificationEventAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\notification\event;
 use wcf\data\AbstractDatabaseObjectAction;
 use wcf\system\exception\PermissionDeniedException;
diff --git a/wcfsetup/install/files/lib/data/user/notification/event/UserNotificationEventEditor.class.php b/wcfsetup/install/files/lib/data/user/notification/event/UserNotificationEventEditor.class.php
index fb9869a02a..3d15b8a891 100644
--- a/wcfsetup/install/files/lib/data/user/notification/event/UserNotificationEventEditor.class.php
+++ b/wcfsetup/install/files/lib/data/user/notification/event/UserNotificationEventEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\notification\event;
 use wcf\data\DatabaseObjectEditor;
 
diff --git a/wcfsetup/install/files/lib/data/user/notification/event/UserNotificationEventList.class.php b/wcfsetup/install/files/lib/data/user/notification/event/UserNotificationEventList.class.php
index f787662ed7..5861b8d050 100644
--- a/wcfsetup/install/files/lib/data/user/notification/event/UserNotificationEventList.class.php
+++ b/wcfsetup/install/files/lib/data/user/notification/event/UserNotificationEventList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\notification\event;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/user/notification/event/recipient/UserNotificationEventRecipientList.class.php b/wcfsetup/install/files/lib/data/user/notification/event/recipient/UserNotificationEventRecipientList.class.php
index d69714b53e..71c41c9dee 100644
--- a/wcfsetup/install/files/lib/data/user/notification/event/recipient/UserNotificationEventRecipientList.class.php
+++ b/wcfsetup/install/files/lib/data/user/notification/event/recipient/UserNotificationEventRecipientList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\notification\event\recipient;
 use wcf\data\user\UserList;
 
diff --git a/wcfsetup/install/files/lib/data/user/object/watch/UserObjectWatch.class.php b/wcfsetup/install/files/lib/data/user/object/watch/UserObjectWatch.class.php
index f92a69f209..ec6b59aa45 100644
--- a/wcfsetup/install/files/lib/data/user/object/watch/UserObjectWatch.class.php
+++ b/wcfsetup/install/files/lib/data/user/object/watch/UserObjectWatch.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\object\watch;
 use wcf\data\DatabaseObject;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/data/user/object/watch/UserObjectWatchAction.class.php b/wcfsetup/install/files/lib/data/user/object/watch/UserObjectWatchAction.class.php
index 040d642e56..e4fc25931a 100644
--- a/wcfsetup/install/files/lib/data/user/object/watch/UserObjectWatchAction.class.php
+++ b/wcfsetup/install/files/lib/data/user/object/watch/UserObjectWatchAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\object\watch;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\data\AbstractDatabaseObjectAction;
diff --git a/wcfsetup/install/files/lib/data/user/object/watch/UserObjectWatchEditor.class.php b/wcfsetup/install/files/lib/data/user/object/watch/UserObjectWatchEditor.class.php
index 285aa93014..f241c90b34 100644
--- a/wcfsetup/install/files/lib/data/user/object/watch/UserObjectWatchEditor.class.php
+++ b/wcfsetup/install/files/lib/data/user/object/watch/UserObjectWatchEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\object\watch;
 use wcf\data\DatabaseObjectEditor;
 
diff --git a/wcfsetup/install/files/lib/data/user/object/watch/UserObjectWatchList.class.php b/wcfsetup/install/files/lib/data/user/object/watch/UserObjectWatchList.class.php
index 5074f899c1..8b30a443ad 100644
--- a/wcfsetup/install/files/lib/data/user/object/watch/UserObjectWatchList.class.php
+++ b/wcfsetup/install/files/lib/data/user/object/watch/UserObjectWatchList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\object\watch;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/user/online/UserOnline.class.php b/wcfsetup/install/files/lib/data/user/online/UserOnline.class.php
index e508d3dedd..f7c8baecc1 100644
--- a/wcfsetup/install/files/lib/data/user/online/UserOnline.class.php
+++ b/wcfsetup/install/files/lib/data/user/online/UserOnline.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\online;
 use wcf\data\page\PageCache;
 use wcf\data\spider\Spider;
diff --git a/wcfsetup/install/files/lib/data/user/online/UsersOnlineList.class.php b/wcfsetup/install/files/lib/data/user/online/UsersOnlineList.class.php
index 5b807ac679..921a8675a0 100644
--- a/wcfsetup/install/files/lib/data/user/online/UsersOnlineList.class.php
+++ b/wcfsetup/install/files/lib/data/user/online/UsersOnlineList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\online;
 use wcf\data\option\OptionAction;
 use wcf\data\session\SessionList;
diff --git a/wcfsetup/install/files/lib/data/user/option/UserOption.class.php b/wcfsetup/install/files/lib/data/user/option/UserOption.class.php
index 161c012c60..560ba1dc74 100644
--- a/wcfsetup/install/files/lib/data/user/option/UserOption.class.php
+++ b/wcfsetup/install/files/lib/data/user/option/UserOption.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\option;
 use wcf\data\option\Option;
 use wcf\data\user\User;
diff --git a/wcfsetup/install/files/lib/data/user/option/UserOptionAction.class.php b/wcfsetup/install/files/lib/data/user/option/UserOptionAction.class.php
index f3acd15289..c74b4a3503 100644
--- a/wcfsetup/install/files/lib/data/user/option/UserOptionAction.class.php
+++ b/wcfsetup/install/files/lib/data/user/option/UserOptionAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\option;
 use wcf\data\AbstractDatabaseObjectAction;
 use wcf\data\IToggleAction;
diff --git a/wcfsetup/install/files/lib/data/user/option/UserOptionEditor.class.php b/wcfsetup/install/files/lib/data/user/option/UserOptionEditor.class.php
index d88921375b..bd19ea6a38 100644
--- a/wcfsetup/install/files/lib/data/user/option/UserOptionEditor.class.php
+++ b/wcfsetup/install/files/lib/data/user/option/UserOptionEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\option;
 use wcf\data\DatabaseObjectEditor;
 use wcf\data\IEditableCachedObject;
diff --git a/wcfsetup/install/files/lib/data/user/option/UserOptionList.class.php b/wcfsetup/install/files/lib/data/user/option/UserOptionList.class.php
index ce57634a8a..e2b2256bd3 100644
--- a/wcfsetup/install/files/lib/data/user/option/UserOptionList.class.php
+++ b/wcfsetup/install/files/lib/data/user/option/UserOptionList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\option;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/user/option/ViewableUserOption.class.php b/wcfsetup/install/files/lib/data/user/option/ViewableUserOption.class.php
index e7a5150a83..efcb66da4e 100644
--- a/wcfsetup/install/files/lib/data/user/option/ViewableUserOption.class.php
+++ b/wcfsetup/install/files/lib/data/user/option/ViewableUserOption.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\option;
 use wcf\data\user\User;
 use wcf\data\DatabaseObjectDecorator;
diff --git a/wcfsetup/install/files/lib/data/user/option/category/UserOptionCategory.class.php b/wcfsetup/install/files/lib/data/user/option/category/UserOptionCategory.class.php
index 76f9e5948e..504ef4a8b0 100644
--- a/wcfsetup/install/files/lib/data/user/option/category/UserOptionCategory.class.php
+++ b/wcfsetup/install/files/lib/data/user/option/category/UserOptionCategory.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\option\category;
 use wcf\data\DatabaseObject;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/data/user/option/category/UserOptionCategoryAction.class.php b/wcfsetup/install/files/lib/data/user/option/category/UserOptionCategoryAction.class.php
index fa964568d3..cb31c7e239 100644
--- a/wcfsetup/install/files/lib/data/user/option/category/UserOptionCategoryAction.class.php
+++ b/wcfsetup/install/files/lib/data/user/option/category/UserOptionCategoryAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\option\category;
 use wcf\data\AbstractDatabaseObjectAction;
 use wcf\system\database\util\PreparedStatementConditionBuilder;
diff --git a/wcfsetup/install/files/lib/data/user/option/category/UserOptionCategoryEditor.class.php b/wcfsetup/install/files/lib/data/user/option/category/UserOptionCategoryEditor.class.php
index de762ffb31..efeda0de39 100644
--- a/wcfsetup/install/files/lib/data/user/option/category/UserOptionCategoryEditor.class.php
+++ b/wcfsetup/install/files/lib/data/user/option/category/UserOptionCategoryEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\option\category;
 use wcf\data\DatabaseObjectEditor;
 use wcf\data\IEditableCachedObject;
diff --git a/wcfsetup/install/files/lib/data/user/option/category/UserOptionCategoryList.class.php b/wcfsetup/install/files/lib/data/user/option/category/UserOptionCategoryList.class.php
index b044425c18..99711e6541 100644
--- a/wcfsetup/install/files/lib/data/user/option/category/UserOptionCategoryList.class.php
+++ b/wcfsetup/install/files/lib/data/user/option/category/UserOptionCategoryList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\option\category;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/user/profile/menu/item/UserProfileMenuItem.class.php b/wcfsetup/install/files/lib/data/user/profile/menu/item/UserProfileMenuItem.class.php
index 91720a52b3..a207564707 100644
--- a/wcfsetup/install/files/lib/data/user/profile/menu/item/UserProfileMenuItem.class.php
+++ b/wcfsetup/install/files/lib/data/user/profile/menu/item/UserProfileMenuItem.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\profile\menu\item;
 use wcf\system\exception\ImplementationException;
 use wcf\system\exception\ParentClassException;
diff --git a/wcfsetup/install/files/lib/data/user/profile/menu/item/UserProfileMenuItemAction.class.php b/wcfsetup/install/files/lib/data/user/profile/menu/item/UserProfileMenuItemAction.class.php
index 8820990a27..805227f841 100644
--- a/wcfsetup/install/files/lib/data/user/profile/menu/item/UserProfileMenuItemAction.class.php
+++ b/wcfsetup/install/files/lib/data/user/profile/menu/item/UserProfileMenuItemAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\profile\menu\item;
 use wcf\data\AbstractDatabaseObjectAction;
 use wcf\data\ISortableAction;
diff --git a/wcfsetup/install/files/lib/data/user/profile/menu/item/UserProfileMenuItemEditor.class.php b/wcfsetup/install/files/lib/data/user/profile/menu/item/UserProfileMenuItemEditor.class.php
index 2a7d75d692..78ce35f347 100644
--- a/wcfsetup/install/files/lib/data/user/profile/menu/item/UserProfileMenuItemEditor.class.php
+++ b/wcfsetup/install/files/lib/data/user/profile/menu/item/UserProfileMenuItemEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\profile\menu\item;
 use wcf\data\DatabaseObjectEditor;
 use wcf\data\IEditableCachedObject;
diff --git a/wcfsetup/install/files/lib/data/user/profile/menu/item/UserProfileMenuItemList.class.php b/wcfsetup/install/files/lib/data/user/profile/menu/item/UserProfileMenuItemList.class.php
index 608395001f..c1e3f15a4e 100644
--- a/wcfsetup/install/files/lib/data/user/profile/menu/item/UserProfileMenuItemList.class.php
+++ b/wcfsetup/install/files/lib/data/user/profile/menu/item/UserProfileMenuItemList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\profile\menu\item;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/user/profile/visitor/UserProfileVisitor.class.php b/wcfsetup/install/files/lib/data/user/profile/visitor/UserProfileVisitor.class.php
index 3388e10794..0c77386339 100644
--- a/wcfsetup/install/files/lib/data/user/profile/visitor/UserProfileVisitor.class.php
+++ b/wcfsetup/install/files/lib/data/user/profile/visitor/UserProfileVisitor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\profile\visitor;
 use wcf\data\DatabaseObject;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/data/user/profile/visitor/UserProfileVisitorAction.class.php b/wcfsetup/install/files/lib/data/user/profile/visitor/UserProfileVisitorAction.class.php
index 779bebd97f..63062b6bb7 100644
--- a/wcfsetup/install/files/lib/data/user/profile/visitor/UserProfileVisitorAction.class.php
+++ b/wcfsetup/install/files/lib/data/user/profile/visitor/UserProfileVisitorAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\profile\visitor;
 use wcf\data\user\UserProfile;
 use wcf\data\AbstractDatabaseObjectAction;
diff --git a/wcfsetup/install/files/lib/data/user/profile/visitor/UserProfileVisitorEditor.class.php b/wcfsetup/install/files/lib/data/user/profile/visitor/UserProfileVisitorEditor.class.php
index 326e1af969..8109d755b6 100644
--- a/wcfsetup/install/files/lib/data/user/profile/visitor/UserProfileVisitorEditor.class.php
+++ b/wcfsetup/install/files/lib/data/user/profile/visitor/UserProfileVisitorEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\profile\visitor;
 use wcf\data\DatabaseObjectEditor;
 
diff --git a/wcfsetup/install/files/lib/data/user/profile/visitor/UserProfileVisitorList.class.php b/wcfsetup/install/files/lib/data/user/profile/visitor/UserProfileVisitorList.class.php
index e6e2149e65..55ad656ae9 100644
--- a/wcfsetup/install/files/lib/data/user/profile/visitor/UserProfileVisitorList.class.php
+++ b/wcfsetup/install/files/lib/data/user/profile/visitor/UserProfileVisitorList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\profile\visitor;
 use wcf\data\user\User;
 use wcf\data\user\UserProfile;
diff --git a/wcfsetup/install/files/lib/data/user/rank/UserRank.class.php b/wcfsetup/install/files/lib/data/user/rank/UserRank.class.php
index 6855f391c8..e70e3c051a 100644
--- a/wcfsetup/install/files/lib/data/user/rank/UserRank.class.php
+++ b/wcfsetup/install/files/lib/data/user/rank/UserRank.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\rank;
 use wcf\data\DatabaseObject;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/data/user/rank/UserRankAction.class.php b/wcfsetup/install/files/lib/data/user/rank/UserRankAction.class.php
index 61a208f902..d3bd586de8 100644
--- a/wcfsetup/install/files/lib/data/user/rank/UserRankAction.class.php
+++ b/wcfsetup/install/files/lib/data/user/rank/UserRankAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\rank;
 use wcf\data\AbstractDatabaseObjectAction;
 
diff --git a/wcfsetup/install/files/lib/data/user/rank/UserRankEditor.class.php b/wcfsetup/install/files/lib/data/user/rank/UserRankEditor.class.php
index a3ec920703..363e041526 100644
--- a/wcfsetup/install/files/lib/data/user/rank/UserRankEditor.class.php
+++ b/wcfsetup/install/files/lib/data/user/rank/UserRankEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\rank;
 use wcf\data\DatabaseObjectEditor;
 use wcf\data\IEditableCachedObject;
diff --git a/wcfsetup/install/files/lib/data/user/rank/UserRankList.class.php b/wcfsetup/install/files/lib/data/user/rank/UserRankList.class.php
index 25b03995e0..94c5a5b3de 100644
--- a/wcfsetup/install/files/lib/data/user/rank/UserRankList.class.php
+++ b/wcfsetup/install/files/lib/data/user/rank/UserRankList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\rank;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/data/user/trophy/UserTrophy.class.php b/wcfsetup/install/files/lib/data/user/trophy/UserTrophy.class.php
index 3545ef1201..0682dcb92d 100644
--- a/wcfsetup/install/files/lib/data/user/trophy/UserTrophy.class.php
+++ b/wcfsetup/install/files/lib/data/user/trophy/UserTrophy.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\trophy;
 use wcf\data\trophy\Trophy;
 use wcf\data\trophy\TrophyCache;
diff --git a/wcfsetup/install/files/lib/data/user/trophy/UserTrophyAction.class.php b/wcfsetup/install/files/lib/data/user/trophy/UserTrophyAction.class.php
index 6aa5f9a905..9bce8a8b80 100644
--- a/wcfsetup/install/files/lib/data/user/trophy/UserTrophyAction.class.php
+++ b/wcfsetup/install/files/lib/data/user/trophy/UserTrophyAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\trophy;
 use wcf\data\user\UserAction;
 use wcf\data\AbstractDatabaseObjectAction;
diff --git a/wcfsetup/install/files/lib/data/user/trophy/UserTrophyEditor.class.php b/wcfsetup/install/files/lib/data/user/trophy/UserTrophyEditor.class.php
index 0719e0a2ef..2fb2278b4e 100644
--- a/wcfsetup/install/files/lib/data/user/trophy/UserTrophyEditor.class.php
+++ b/wcfsetup/install/files/lib/data/user/trophy/UserTrophyEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\trophy;
 use wcf\data\DatabaseObjectEditor;
 
diff --git a/wcfsetup/install/files/lib/data/user/trophy/UserTrophyList.class.php b/wcfsetup/install/files/lib/data/user/trophy/UserTrophyList.class.php
index 468cfae60b..855002e599 100644
--- a/wcfsetup/install/files/lib/data/user/trophy/UserTrophyList.class.php
+++ b/wcfsetup/install/files/lib/data/user/trophy/UserTrophyList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\data\user\trophy;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/form/AbstractCaptchaForm.class.php b/wcfsetup/install/files/lib/form/AbstractCaptchaForm.class.php
index f07f47abfc..d913d755d0 100644
--- a/wcfsetup/install/files/lib/form/AbstractCaptchaForm.class.php
+++ b/wcfsetup/install/files/lib/form/AbstractCaptchaForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\form;
 use wcf\system\captcha\CaptchaHandler;
 use wcf\system\exception\SystemException;
diff --git a/wcfsetup/install/files/lib/form/AbstractForm.class.php b/wcfsetup/install/files/lib/form/AbstractForm.class.php
index a6169babb0..6522e3e776 100644
--- a/wcfsetup/install/files/lib/form/AbstractForm.class.php
+++ b/wcfsetup/install/files/lib/form/AbstractForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\form;
 use wcf\data\AbstractDatabaseObjectAction;
 use wcf\page\AbstractPage;
diff --git a/wcfsetup/install/files/lib/form/AbstractModerationForm.class.php b/wcfsetup/install/files/lib/form/AbstractModerationForm.class.php
index afc4499331..fc03f74498 100644
--- a/wcfsetup/install/files/lib/form/AbstractModerationForm.class.php
+++ b/wcfsetup/install/files/lib/form/AbstractModerationForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\form;
 use wcf\data\comment\StructuredCommentList;
 use wcf\data\moderation\queue\ModerationQueueAction;
diff --git a/wcfsetup/install/files/lib/form/AccountManagementForm.class.php b/wcfsetup/install/files/lib/form/AccountManagementForm.class.php
index ae2d0b193a..eee2c24fee 100644
--- a/wcfsetup/install/files/lib/form/AccountManagementForm.class.php
+++ b/wcfsetup/install/files/lib/form/AccountManagementForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\form;
 use wcf\data\user\User;
 use wcf\data\user\UserAction;
diff --git a/wcfsetup/install/files/lib/form/AvatarEditForm.class.php b/wcfsetup/install/files/lib/form/AvatarEditForm.class.php
index 10e722f21c..8da8a05401 100644
--- a/wcfsetup/install/files/lib/form/AvatarEditForm.class.php
+++ b/wcfsetup/install/files/lib/form/AvatarEditForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\form;
 use wcf\data\user\avatar\Gravatar;
 use wcf\data\user\avatar\UserAvatarAction;
diff --git a/wcfsetup/install/files/lib/form/ContactForm.class.php b/wcfsetup/install/files/lib/form/ContactForm.class.php
index 86c480f502..6b6c2def03 100644
--- a/wcfsetup/install/files/lib/form/ContactForm.class.php
+++ b/wcfsetup/install/files/lib/form/ContactForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\form;
 use wcf\data\contact\option\ContactOptionAction;
 use wcf\data\contact\recipient\ContactRecipientList;
diff --git a/wcfsetup/install/files/lib/form/DisclaimerForm.class.php b/wcfsetup/install/files/lib/form/DisclaimerForm.class.php
index e621477ea5..1913b00e5c 100644
--- a/wcfsetup/install/files/lib/form/DisclaimerForm.class.php
+++ b/wcfsetup/install/files/lib/form/DisclaimerForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\form;
 use wcf\system\exception\NamedUserException;
 use wcf\system\exception\UserInputException;
diff --git a/wcfsetup/install/files/lib/form/EmailActivationForm.class.php b/wcfsetup/install/files/lib/form/EmailActivationForm.class.php
index 2618ccf6af..b7ef3b5867 100644
--- a/wcfsetup/install/files/lib/form/EmailActivationForm.class.php
+++ b/wcfsetup/install/files/lib/form/EmailActivationForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\form;
 use wcf\data\user\User;
 use wcf\data\user\UserAction;
diff --git a/wcfsetup/install/files/lib/form/EmailNewActivationCodeForm.class.php b/wcfsetup/install/files/lib/form/EmailNewActivationCodeForm.class.php
index effe17de15..808a700d89 100644
--- a/wcfsetup/install/files/lib/form/EmailNewActivationCodeForm.class.php
+++ b/wcfsetup/install/files/lib/form/EmailNewActivationCodeForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\form;
 use wcf\data\user\User;
 use wcf\data\user\UserAction;
diff --git a/wcfsetup/install/files/lib/form/IForm.class.php b/wcfsetup/install/files/lib/form/IForm.class.php
index 3aeccca5b7..4a3097beac 100644
--- a/wcfsetup/install/files/lib/form/IForm.class.php
+++ b/wcfsetup/install/files/lib/form/IForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\form;
 use wcf\page\IPage;
 
diff --git a/wcfsetup/install/files/lib/form/LoginForm.class.php b/wcfsetup/install/files/lib/form/LoginForm.class.php
index 0059d3c89c..f9420db2dd 100644
--- a/wcfsetup/install/files/lib/form/LoginForm.class.php
+++ b/wcfsetup/install/files/lib/form/LoginForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\form;
 use wcf\system\request\LinkHandler;
 use wcf\system\user\authentication\UserAuthenticationFactory;
diff --git a/wcfsetup/install/files/lib/form/LostPasswordForm.class.php b/wcfsetup/install/files/lib/form/LostPasswordForm.class.php
index 6008a9fd69..3df3bb7460 100644
--- a/wcfsetup/install/files/lib/form/LostPasswordForm.class.php
+++ b/wcfsetup/install/files/lib/form/LostPasswordForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\form;
 use wcf\data\user\User;
 use wcf\data\user\UserAction;
diff --git a/wcfsetup/install/files/lib/form/MailForm.class.php b/wcfsetup/install/files/lib/form/MailForm.class.php
index a90979ebca..ce68358824 100644
--- a/wcfsetup/install/files/lib/form/MailForm.class.php
+++ b/wcfsetup/install/files/lib/form/MailForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\form;
 use wcf\data\user\UserProfile;
 use wcf\system\cache\runtime\UserProfileRuntimeCache;
diff --git a/wcfsetup/install/files/lib/form/MessageForm.class.php b/wcfsetup/install/files/lib/form/MessageForm.class.php
index f0edf24516..ae1da65765 100644
--- a/wcfsetup/install/files/lib/form/MessageForm.class.php
+++ b/wcfsetup/install/files/lib/form/MessageForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\form;
 use wcf\data\language\Language;
 use wcf\data\smiley\category\SmileyCategory;
diff --git a/wcfsetup/install/files/lib/form/ModerationActivationForm.class.php b/wcfsetup/install/files/lib/form/ModerationActivationForm.class.php
index c783ab829f..b1a9a07438 100644
--- a/wcfsetup/install/files/lib/form/ModerationActivationForm.class.php
+++ b/wcfsetup/install/files/lib/form/ModerationActivationForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\form;
 use wcf\system\exception\IllegalLinkException;
 use wcf\system\moderation\queue\activation\IModerationQueueActivationHandler;
diff --git a/wcfsetup/install/files/lib/form/ModerationReportForm.class.php b/wcfsetup/install/files/lib/form/ModerationReportForm.class.php
index 197ac8fe2b..7bdc13dbf9 100644
--- a/wcfsetup/install/files/lib/form/ModerationReportForm.class.php
+++ b/wcfsetup/install/files/lib/form/ModerationReportForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\form;
 use wcf\data\user\User;
 use wcf\data\user\UserProfile;
diff --git a/wcfsetup/install/files/lib/form/NewPasswordForm.class.php b/wcfsetup/install/files/lib/form/NewPasswordForm.class.php
index 10cc2fa7e0..20d115932e 100644
--- a/wcfsetup/install/files/lib/form/NewPasswordForm.class.php
+++ b/wcfsetup/install/files/lib/form/NewPasswordForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\form;
 use wcf\data\user\User;
 use wcf\data\user\UserAction;
diff --git a/wcfsetup/install/files/lib/form/NotificationSettingsForm.class.php b/wcfsetup/install/files/lib/form/NotificationSettingsForm.class.php
index e983e644c6..7186ab2251 100644
--- a/wcfsetup/install/files/lib/form/NotificationSettingsForm.class.php
+++ b/wcfsetup/install/files/lib/form/NotificationSettingsForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\form;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\system\exception\UserInputException;
diff --git a/wcfsetup/install/files/lib/form/RecaptchaForm.class.php b/wcfsetup/install/files/lib/form/RecaptchaForm.class.php
index 45c2871665..9925850932 100644
--- a/wcfsetup/install/files/lib/form/RecaptchaForm.class.php
+++ b/wcfsetup/install/files/lib/form/RecaptchaForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\form;
 use wcf\system\recaptcha\RecaptchaHandler;
 use wcf\system\recaptcha\RecaptchaHandlerV2;
diff --git a/wcfsetup/install/files/lib/form/RegisterActivationForm.class.php b/wcfsetup/install/files/lib/form/RegisterActivationForm.class.php
index 006ce5a4ce..7a5d3d5dd2 100644
--- a/wcfsetup/install/files/lib/form/RegisterActivationForm.class.php
+++ b/wcfsetup/install/files/lib/form/RegisterActivationForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\form;
 use wcf\data\user\User;
 use wcf\data\user\UserAction;
diff --git a/wcfsetup/install/files/lib/form/RegisterForm.class.php b/wcfsetup/install/files/lib/form/RegisterForm.class.php
index 635ce73467..8a82f69085 100644
--- a/wcfsetup/install/files/lib/form/RegisterForm.class.php
+++ b/wcfsetup/install/files/lib/form/RegisterForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\form;
 use wcf\acp\form\UserAddForm;
 use wcf\data\object\type\ObjectType;
diff --git a/wcfsetup/install/files/lib/form/RegisterNewActivationCodeForm.class.php b/wcfsetup/install/files/lib/form/RegisterNewActivationCodeForm.class.php
index e0b6b73ae1..7f7ac1b792 100644
--- a/wcfsetup/install/files/lib/form/RegisterNewActivationCodeForm.class.php
+++ b/wcfsetup/install/files/lib/form/RegisterNewActivationCodeForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\form;
 use wcf\data\user\User;
 use wcf\data\user\UserAction;
diff --git a/wcfsetup/install/files/lib/form/SearchForm.class.php b/wcfsetup/install/files/lib/form/SearchForm.class.php
index a16cfd1541..4d28f6fe00 100644
--- a/wcfsetup/install/files/lib/form/SearchForm.class.php
+++ b/wcfsetup/install/files/lib/form/SearchForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\form;
 use wcf\data\search\Search;
 use wcf\data\search\SearchAction;
diff --git a/wcfsetup/install/files/lib/form/SettingsForm.class.php b/wcfsetup/install/files/lib/form/SettingsForm.class.php
index 78d115149e..0a16559b9c 100644
--- a/wcfsetup/install/files/lib/form/SettingsForm.class.php
+++ b/wcfsetup/install/files/lib/form/SettingsForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\form;
 use wcf\data\language\Language;
 use wcf\data\style\Style;
diff --git a/wcfsetup/install/files/lib/form/SignatureEditForm.class.php b/wcfsetup/install/files/lib/form/SignatureEditForm.class.php
index 1df4d0833e..e5a17e30e4 100644
--- a/wcfsetup/install/files/lib/form/SignatureEditForm.class.php
+++ b/wcfsetup/install/files/lib/form/SignatureEditForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\form;
 use wcf\data\user\User;
 use wcf\data\user\UserAction;
diff --git a/wcfsetup/install/files/lib/form/UserSearchForm.class.php b/wcfsetup/install/files/lib/form/UserSearchForm.class.php
index 34c6e96a68..b03fe288c1 100644
--- a/wcfsetup/install/files/lib/form/UserSearchForm.class.php
+++ b/wcfsetup/install/files/lib/form/UserSearchForm.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\form;
 use wcf\acp\form\UserOptionListForm;
 use wcf\data\search\SearchEditor;
diff --git a/wcfsetup/install/files/lib/page/AbstractArticlePage.class.php b/wcfsetup/install/files/lib/page/AbstractArticlePage.class.php
index 8aed647262..bd64cf4e06 100644
--- a/wcfsetup/install/files/lib/page/AbstractArticlePage.class.php
+++ b/wcfsetup/install/files/lib/page/AbstractArticlePage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\page;
 use wcf\data\article\category\ArticleCategory;
 use wcf\data\article\content\ViewableArticleContent;
diff --git a/wcfsetup/install/files/lib/page/AbstractAuthedPage.class.php b/wcfsetup/install/files/lib/page/AbstractAuthedPage.class.php
index ae94d9bf04..b2afc19f19 100644
--- a/wcfsetup/install/files/lib/page/AbstractAuthedPage.class.php
+++ b/wcfsetup/install/files/lib/page/AbstractAuthedPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\page;
 use wcf\data\user\User;
 use wcf\system\exception\IllegalLinkException;
diff --git a/wcfsetup/install/files/lib/page/AbstractFeedPage.class.php b/wcfsetup/install/files/lib/page/AbstractFeedPage.class.php
index 79b724d6da..7b943d30db 100644
--- a/wcfsetup/install/files/lib/page/AbstractFeedPage.class.php
+++ b/wcfsetup/install/files/lib/page/AbstractFeedPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\page;
 use wcf\system\WCF;
 use wcf\util\ArrayUtil;
diff --git a/wcfsetup/install/files/lib/page/AbstractPage.class.php b/wcfsetup/install/files/lib/page/AbstractPage.class.php
index f30b1a9796..598f876499 100644
--- a/wcfsetup/install/files/lib/page/AbstractPage.class.php
+++ b/wcfsetup/install/files/lib/page/AbstractPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\page;
 use wcf\form\DisclaimerForm;
 use wcf\form\EmailActivationForm;
diff --git a/wcfsetup/install/files/lib/page/AbstractSecurePage.class.php b/wcfsetup/install/files/lib/page/AbstractSecurePage.class.php
index b55312710a..42fee5b49d 100644
--- a/wcfsetup/install/files/lib/page/AbstractSecurePage.class.php
+++ b/wcfsetup/install/files/lib/page/AbstractSecurePage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\page;
 use wcf\system\exception\IllegalLinkException;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/page/ArticleAmpPage.class.php b/wcfsetup/install/files/lib/page/ArticleAmpPage.class.php
index 0b858dc71b..f8aefd75a1 100644
--- a/wcfsetup/install/files/lib/page/ArticleAmpPage.class.php
+++ b/wcfsetup/install/files/lib/page/ArticleAmpPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\page;
 use wcf\data\article\CategoryArticleList;
 use wcf\data\article\ViewableArticle;
diff --git a/wcfsetup/install/files/lib/page/ArticleFeedPage.class.php b/wcfsetup/install/files/lib/page/ArticleFeedPage.class.php
index 26ce6a48bb..4a85af157d 100644
--- a/wcfsetup/install/files/lib/page/ArticleFeedPage.class.php
+++ b/wcfsetup/install/files/lib/page/ArticleFeedPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\page;
 use wcf\data\article\category\ArticleCategory;
 use wcf\data\article\FeedArticleList;
diff --git a/wcfsetup/install/files/lib/page/ArticleListPage.class.php b/wcfsetup/install/files/lib/page/ArticleListPage.class.php
index 430b23a48d..8911063f0d 100644
--- a/wcfsetup/install/files/lib/page/ArticleListPage.class.php
+++ b/wcfsetup/install/files/lib/page/ArticleListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\page;
 use wcf\data\article\category\ArticleCategory;
 use wcf\data\article\AccessibleArticleList;
diff --git a/wcfsetup/install/files/lib/page/ArticlePage.class.php b/wcfsetup/install/files/lib/page/ArticlePage.class.php
index ffcfeb933b..f3f27a9f37 100644
--- a/wcfsetup/install/files/lib/page/ArticlePage.class.php
+++ b/wcfsetup/install/files/lib/page/ArticlePage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\page;
 use wcf\data\article\CategoryArticleList;
 use wcf\data\article\ViewableArticle;
diff --git a/wcfsetup/install/files/lib/page/AttachmentPage.class.php b/wcfsetup/install/files/lib/page/AttachmentPage.class.php
index 96e5f1dbe9..a31813ade5 100644
--- a/wcfsetup/install/files/lib/page/AttachmentPage.class.php
+++ b/wcfsetup/install/files/lib/page/AttachmentPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\page;
 use wcf\data\attachment\Attachment;
 use wcf\data\attachment\AttachmentEditor;
diff --git a/wcfsetup/install/files/lib/page/CategoryArticleListPage.class.php b/wcfsetup/install/files/lib/page/CategoryArticleListPage.class.php
index 92765f4de8..90d2fc9928 100644
--- a/wcfsetup/install/files/lib/page/CategoryArticleListPage.class.php
+++ b/wcfsetup/install/files/lib/page/CategoryArticleListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\page;
 use wcf\data\article\category\ArticleCategory;
 use wcf\data\article\CategoryArticleList;
diff --git a/wcfsetup/install/files/lib/page/CmsPage.class.php b/wcfsetup/install/files/lib/page/CmsPage.class.php
index 40a0f8ce0c..4ca7436190 100644
--- a/wcfsetup/install/files/lib/page/CmsPage.class.php
+++ b/wcfsetup/install/files/lib/page/CmsPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\page;
 use wcf\data\page\content\PageContent;
 use wcf\data\page\Page;
diff --git a/wcfsetup/install/files/lib/page/DeletedContentListPage.class.php b/wcfsetup/install/files/lib/page/DeletedContentListPage.class.php
index 50066e8c97..8a03b314dc 100644
--- a/wcfsetup/install/files/lib/page/DeletedContentListPage.class.php
+++ b/wcfsetup/install/files/lib/page/DeletedContentListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\page;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\system\exception\IllegalLinkException;
diff --git a/wcfsetup/install/files/lib/page/EditHistoryPage.class.php b/wcfsetup/install/files/lib/page/EditHistoryPage.class.php
index 272e0642e7..c1ea2d157a 100644
--- a/wcfsetup/install/files/lib/page/EditHistoryPage.class.php
+++ b/wcfsetup/install/files/lib/page/EditHistoryPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\page;
 use wcf\data\edit\history\entry\EditHistoryEntry;
 use wcf\data\edit\history\entry\EditHistoryEntryList;
diff --git a/wcfsetup/install/files/lib/page/FollowingPage.class.php b/wcfsetup/install/files/lib/page/FollowingPage.class.php
index 1b407dc508..8e692641a0 100644
--- a/wcfsetup/install/files/lib/page/FollowingPage.class.php
+++ b/wcfsetup/install/files/lib/page/FollowingPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\page;
 use wcf\data\user\follow\UserFollowingList;
 use wcf\system\menu\user\UserMenu;
diff --git a/wcfsetup/install/files/lib/page/IPage.class.php b/wcfsetup/install/files/lib/page/IPage.class.php
index 793148227f..86153ca8c5 100644
--- a/wcfsetup/install/files/lib/page/IPage.class.php
+++ b/wcfsetup/install/files/lib/page/IPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\page;
 
 /**
diff --git a/wcfsetup/install/files/lib/page/ITrackablePage.class.php b/wcfsetup/install/files/lib/page/ITrackablePage.class.php
index 91be482b82..e9bfaa0525 100644
--- a/wcfsetup/install/files/lib/page/ITrackablePage.class.php
+++ b/wcfsetup/install/files/lib/page/ITrackablePage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\page;
 
 /**
diff --git a/wcfsetup/install/files/lib/page/IgnoredUsersPage.class.php b/wcfsetup/install/files/lib/page/IgnoredUsersPage.class.php
index 7d52d7550e..058b26724a 100644
--- a/wcfsetup/install/files/lib/page/IgnoredUsersPage.class.php
+++ b/wcfsetup/install/files/lib/page/IgnoredUsersPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\page;
 use wcf\data\user\ignore\ViewableUserIgnoreList;
 use wcf\system\menu\user\UserMenu;
diff --git a/wcfsetup/install/files/lib/page/MediaPage.class.php b/wcfsetup/install/files/lib/page/MediaPage.class.php
index 57bb7d5e47..73e9369bda 100644
--- a/wcfsetup/install/files/lib/page/MediaPage.class.php
+++ b/wcfsetup/install/files/lib/page/MediaPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\page;
 use wcf\data\media\Media;
 use wcf\system\exception\IllegalLinkException;
diff --git a/wcfsetup/install/files/lib/page/MembersListPage.class.php b/wcfsetup/install/files/lib/page/MembersListPage.class.php
index 76b33b2066..cb66a96090 100644
--- a/wcfsetup/install/files/lib/page/MembersListPage.class.php
+++ b/wcfsetup/install/files/lib/page/MembersListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\page;
 use wcf\data\search\Search;
 use wcf\data\user\User;
diff --git a/wcfsetup/install/files/lib/page/ModerationListPage.class.php b/wcfsetup/install/files/lib/page/ModerationListPage.class.php
index 9c357f2807..379517f9e1 100644
--- a/wcfsetup/install/files/lib/page/ModerationListPage.class.php
+++ b/wcfsetup/install/files/lib/page/ModerationListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\page;
 use wcf\data\moderation\queue\ModerationQueue;
 use wcf\data\moderation\queue\ViewableModerationQueueList;
diff --git a/wcfsetup/install/files/lib/page/MultipleLinkPage.class.php b/wcfsetup/install/files/lib/page/MultipleLinkPage.class.php
index 4e61d7f500..4ba761125e 100644
--- a/wcfsetup/install/files/lib/page/MultipleLinkPage.class.php
+++ b/wcfsetup/install/files/lib/page/MultipleLinkPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\page;
 use wcf\data\DatabaseObjectList;
 use wcf\system\event\EventHandler;
diff --git a/wcfsetup/install/files/lib/page/NotificationFeedPage.class.php b/wcfsetup/install/files/lib/page/NotificationFeedPage.class.php
index 1ca8a64514..c0b3133e38 100644
--- a/wcfsetup/install/files/lib/page/NotificationFeedPage.class.php
+++ b/wcfsetup/install/files/lib/page/NotificationFeedPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\page;
 use wcf\system\exception\IllegalLinkException;
 use wcf\system\user\notification\UserNotificationHandler;
diff --git a/wcfsetup/install/files/lib/page/NotificationListPage.class.php b/wcfsetup/install/files/lib/page/NotificationListPage.class.php
index 4eeddc3966..35b96d2d00 100644
--- a/wcfsetup/install/files/lib/page/NotificationListPage.class.php
+++ b/wcfsetup/install/files/lib/page/NotificationListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\page;
 use wcf\system\menu\user\UserMenu;
 use wcf\system\user\notification\UserNotificationHandler;
diff --git a/wcfsetup/install/files/lib/page/PaidSubscriptionListPage.class.php b/wcfsetup/install/files/lib/page/PaidSubscriptionListPage.class.php
index 73b5f4e9b5..dc6a15a79c 100644
--- a/wcfsetup/install/files/lib/page/PaidSubscriptionListPage.class.php
+++ b/wcfsetup/install/files/lib/page/PaidSubscriptionListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\page;
 use wcf\data\paid\subscription\user\PaidSubscriptionUserList;
 use wcf\system\cache\builder\PaidSubscriptionCacheBuilder;
diff --git a/wcfsetup/install/files/lib/page/PaidSubscriptionReturnPage.class.php b/wcfsetup/install/files/lib/page/PaidSubscriptionReturnPage.class.php
index 6ad573a985..434357ad88 100644
--- a/wcfsetup/install/files/lib/page/PaidSubscriptionReturnPage.class.php
+++ b/wcfsetup/install/files/lib/page/PaidSubscriptionReturnPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\page;
 use wcf\system\request\LinkHandler;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/page/RecentActivityListPage.class.php b/wcfsetup/install/files/lib/page/RecentActivityListPage.class.php
index 1e45e48da4..bcf54545af 100644
--- a/wcfsetup/install/files/lib/page/RecentActivityListPage.class.php
+++ b/wcfsetup/install/files/lib/page/RecentActivityListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\page;
 use wcf\data\user\activity\event\ViewableUserActivityEventList;
 use wcf\system\page\PageLocationManager;
diff --git a/wcfsetup/install/files/lib/page/SearchResultPage.class.php b/wcfsetup/install/files/lib/page/SearchResultPage.class.php
index 00e8d5b84b..7d56638b42 100644
--- a/wcfsetup/install/files/lib/page/SearchResultPage.class.php
+++ b/wcfsetup/install/files/lib/page/SearchResultPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\page;
 use wcf\data\search\ICustomIconSearchResultObject;
 use wcf\data\search\ISearchResultObject;
diff --git a/wcfsetup/install/files/lib/page/SortablePage.class.php b/wcfsetup/install/files/lib/page/SortablePage.class.php
index fd648f4e1b..46fb9fdb9a 100644
--- a/wcfsetup/install/files/lib/page/SortablePage.class.php
+++ b/wcfsetup/install/files/lib/page/SortablePage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\page;
 use wcf\system\event\EventHandler;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/page/TaggedPage.class.php b/wcfsetup/install/files/lib/page/TaggedPage.class.php
index 50e3ded55c..32f439ce20 100644
--- a/wcfsetup/install/files/lib/page/TaggedPage.class.php
+++ b/wcfsetup/install/files/lib/page/TaggedPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\page;
 use wcf\data\object\type\ObjectType;
 use wcf\data\object\type\ObjectTypeCache;
diff --git a/wcfsetup/install/files/lib/page/TeamPage.class.php b/wcfsetup/install/files/lib/page/TeamPage.class.php
index 9f76d55bfe..802ee0caab 100644
--- a/wcfsetup/install/files/lib/page/TeamPage.class.php
+++ b/wcfsetup/install/files/lib/page/TeamPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\page;
 use wcf\data\user\TeamList;
 use wcf\system\page\PageLocationManager;
diff --git a/wcfsetup/install/files/lib/page/TrophyListPage.class.php b/wcfsetup/install/files/lib/page/TrophyListPage.class.php
index 384d65d2a3..0c86378a4d 100644
--- a/wcfsetup/install/files/lib/page/TrophyListPage.class.php
+++ b/wcfsetup/install/files/lib/page/TrophyListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\page;
 use wcf\data\trophy\category\TrophyCategory;
 use wcf\data\trophy\category\TrophyCategoryCache;
diff --git a/wcfsetup/install/files/lib/page/TrophyPage.class.php b/wcfsetup/install/files/lib/page/TrophyPage.class.php
index 1289b5da40..f9338cd9ed 100644
--- a/wcfsetup/install/files/lib/page/TrophyPage.class.php
+++ b/wcfsetup/install/files/lib/page/TrophyPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\page;
 use wcf\data\trophy\Trophy;
 use wcf\data\trophy\TrophyCache;
diff --git a/wcfsetup/install/files/lib/page/UserPage.class.php b/wcfsetup/install/files/lib/page/UserPage.class.php
index 60b52dc650..a2190c075c 100644
--- a/wcfsetup/install/files/lib/page/UserPage.class.php
+++ b/wcfsetup/install/files/lib/page/UserPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\page;
 use wcf\data\object\type\ObjectType;
 use wcf\data\object\type\ObjectTypeCache;
diff --git a/wcfsetup/install/files/lib/page/UsersOnlineListPage.class.php b/wcfsetup/install/files/lib/page/UsersOnlineListPage.class.php
index a6c92048d8..50b303d249 100644
--- a/wcfsetup/install/files/lib/page/UsersOnlineListPage.class.php
+++ b/wcfsetup/install/files/lib/page/UsersOnlineListPage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\page;
 use wcf\data\page\PageCache;
 use wcf\data\user\online\UserOnline;
diff --git a/wcfsetup/install/files/lib/system/CLIWCF.class.php b/wcfsetup/install/files/lib/system/CLIWCF.class.php
index 3e7807bcd9..73d6c96c9a 100644
--- a/wcfsetup/install/files/lib/system/CLIWCF.class.php
+++ b/wcfsetup/install/files/lib/system/CLIWCF.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system;
 use phpline\console\ConsoleReader;
 use phpline\internal\Log;
diff --git a/wcfsetup/install/files/lib/system/Callback.class.php b/wcfsetup/install/files/lib/system/Callback.class.php
index 2bddda5117..31d7fcb548 100644
--- a/wcfsetup/install/files/lib/system/Callback.class.php
+++ b/wcfsetup/install/files/lib/system/Callback.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system;
 use wcf\system\exception\SystemException;
 
diff --git a/wcfsetup/install/files/lib/system/IAJAXInvokeAction.class.php b/wcfsetup/install/files/lib/system/IAJAXInvokeAction.class.php
index b982456151..e9cc89680c 100644
--- a/wcfsetup/install/files/lib/system/IAJAXInvokeAction.class.php
+++ b/wcfsetup/install/files/lib/system/IAJAXInvokeAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/MetaTagHandler.class.php b/wcfsetup/install/files/lib/system/MetaTagHandler.class.php
index 3e736c1a15..b95cc7716e 100644
--- a/wcfsetup/install/files/lib/system/MetaTagHandler.class.php
+++ b/wcfsetup/install/files/lib/system/MetaTagHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system;
 use wcf\util\StringUtil;
 
diff --git a/wcfsetup/install/files/lib/system/Regex.class.php b/wcfsetup/install/files/lib/system/Regex.class.php
index cf6421ff16..b8ac8dcdfe 100644
--- a/wcfsetup/install/files/lib/system/Regex.class.php
+++ b/wcfsetup/install/files/lib/system/Regex.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system;
 use wcf\system\exception\SystemException;
 
diff --git a/wcfsetup/install/files/lib/system/SingletonFactory.class.php b/wcfsetup/install/files/lib/system/SingletonFactory.class.php
index fc1810b1e1..5634dbe0e3 100644
--- a/wcfsetup/install/files/lib/system/SingletonFactory.class.php
+++ b/wcfsetup/install/files/lib/system/SingletonFactory.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system;
 use wcf\system\exception\SystemException;
 
diff --git a/wcfsetup/install/files/lib/system/WCF.class.php b/wcfsetup/install/files/lib/system/WCF.class.php
index d453a00ffe..9c9cc6b84d 100644
--- a/wcfsetup/install/files/lib/system/WCF.class.php
+++ b/wcfsetup/install/files/lib/system/WCF.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system;
 use wcf\data\application\Application;
 use wcf\data\option\OptionEditor;
diff --git a/wcfsetup/install/files/lib/system/WCFACP.class.php b/wcfsetup/install/files/lib/system/WCFACP.class.php
index b098949f74..88ac3c1edf 100644
--- a/wcfsetup/install/files/lib/system/WCFACP.class.php
+++ b/wcfsetup/install/files/lib/system/WCFACP.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system;
 use wcf\acp\form\MasterPasswordForm;
 use wcf\acp\form\MasterPasswordInitForm;
diff --git a/wcfsetup/install/files/lib/system/WCFSetup.class.php b/wcfsetup/install/files/lib/system/WCFSetup.class.php
index e7078b821e..49da645fb1 100644
--- a/wcfsetup/install/files/lib/system/WCFSetup.class.php
+++ b/wcfsetup/install/files/lib/system/WCFSetup.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system;
 use wcf\data\language\LanguageEditor;
 use wcf\data\language\SetupLanguage;
diff --git a/wcfsetup/install/files/lib/system/acl/ACLHandler.class.php b/wcfsetup/install/files/lib/system/acl/ACLHandler.class.php
index 0927e85371..6811fa8fe6 100644
--- a/wcfsetup/install/files/lib/system/acl/ACLHandler.class.php
+++ b/wcfsetup/install/files/lib/system/acl/ACLHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\acl;
 use wcf\data\acl\option\category\ACLOptionCategory;
 use wcf\data\acl\option\category\ACLOptionCategoryList;
diff --git a/wcfsetup/install/files/lib/system/acl/simple/SimpleAclHandler.class.php b/wcfsetup/install/files/lib/system/acl/simple/SimpleAclHandler.class.php
index 69d1495353..9b2fb3263b 100644
--- a/wcfsetup/install/files/lib/system/acl/simple/SimpleAclHandler.class.php
+++ b/wcfsetup/install/files/lib/system/acl/simple/SimpleAclHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\acl\simple;
 use wcf\data\object\type\ObjectType;
 use wcf\data\object\type\ObjectTypeCache;
diff --git a/wcfsetup/install/files/lib/system/acl/simple/SimpleAclResolver.class.php b/wcfsetup/install/files/lib/system/acl/simple/SimpleAclResolver.class.php
index bcf153643e..c71292b319 100644
--- a/wcfsetup/install/files/lib/system/acl/simple/SimpleAclResolver.class.php
+++ b/wcfsetup/install/files/lib/system/acl/simple/SimpleAclResolver.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\acl\simple;
 use wcf\data\user\User;
 use wcf\system\cache\builder\SimpleAclCacheBuilder;
diff --git a/wcfsetup/install/files/lib/system/ad/AdHandler.class.php b/wcfsetup/install/files/lib/system/ad/AdHandler.class.php
index 65af2040cf..79703f05b8 100644
--- a/wcfsetup/install/files/lib/system/ad/AdHandler.class.php
+++ b/wcfsetup/install/files/lib/system/ad/AdHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\ad;
 use wcf\data\ad\Ad;
 use wcf\data\object\type\ObjectType;
diff --git a/wcfsetup/install/files/lib/system/application/AbstractApplication.class.php b/wcfsetup/install/files/lib/system/application/AbstractApplication.class.php
index 94454bafdc..8394be065f 100644
--- a/wcfsetup/install/files/lib/system/application/AbstractApplication.class.php
+++ b/wcfsetup/install/files/lib/system/application/AbstractApplication.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\application;
 use wcf\data\package\PackageCache;
 use wcf\system\exception\SystemException;
diff --git a/wcfsetup/install/files/lib/system/application/ApplicationHandler.class.php b/wcfsetup/install/files/lib/system/application/ApplicationHandler.class.php
index bdbc57b6bf..541fc84750 100644
--- a/wcfsetup/install/files/lib/system/application/ApplicationHandler.class.php
+++ b/wcfsetup/install/files/lib/system/application/ApplicationHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\application;
 use wcf\data\application\Application;
 use wcf\data\application\ApplicationAction;
diff --git a/wcfsetup/install/files/lib/system/application/IApplication.class.php b/wcfsetup/install/files/lib/system/application/IApplication.class.php
index 08d04a8020..685272bead 100644
--- a/wcfsetup/install/files/lib/system/application/IApplication.class.php
+++ b/wcfsetup/install/files/lib/system/application/IApplication.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\application;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/attachment/AbstractAttachmentObjectType.class.php b/wcfsetup/install/files/lib/system/attachment/AbstractAttachmentObjectType.class.php
index 21f1409ba7..1d272c8672 100644
--- a/wcfsetup/install/files/lib/system/attachment/AbstractAttachmentObjectType.class.php
+++ b/wcfsetup/install/files/lib/system/attachment/AbstractAttachmentObjectType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\attachment;
 use wcf\data\DatabaseObject;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/system/attachment/AttachmentHandler.class.php b/wcfsetup/install/files/lib/system/attachment/AttachmentHandler.class.php
index 01bfdd5d01..b38a57ab1a 100644
--- a/wcfsetup/install/files/lib/system/attachment/AttachmentHandler.class.php
+++ b/wcfsetup/install/files/lib/system/attachment/AttachmentHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\attachment;
 use wcf\data\attachment\AttachmentAction;
 use wcf\data\attachment\AttachmentList;
diff --git a/wcfsetup/install/files/lib/system/attachment/IAttachmentObjectType.class.php b/wcfsetup/install/files/lib/system/attachment/IAttachmentObjectType.class.php
index 4934a55fae..fac5e2c582 100644
--- a/wcfsetup/install/files/lib/system/attachment/IAttachmentObjectType.class.php
+++ b/wcfsetup/install/files/lib/system/attachment/IAttachmentObjectType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\attachment;
 use wcf\data\attachment\Attachment;
 use wcf\data\IUserContent;
diff --git a/wcfsetup/install/files/lib/system/background/BackgroundQueueHandler.class.php b/wcfsetup/install/files/lib/system/background/BackgroundQueueHandler.class.php
index d9c6c3e1fe..0df038851b 100644
--- a/wcfsetup/install/files/lib/system/background/BackgroundQueueHandler.class.php
+++ b/wcfsetup/install/files/lib/system/background/BackgroundQueueHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\background;
 use wcf\data\user\User;
 use wcf\system\background\job\AbstractBackgroundJob;
diff --git a/wcfsetup/install/files/lib/system/background/job/AbstractBackgroundJob.class.php b/wcfsetup/install/files/lib/system/background/job/AbstractBackgroundJob.class.php
index 42f6f6bcd6..3979a14368 100644
--- a/wcfsetup/install/files/lib/system/background/job/AbstractBackgroundJob.class.php
+++ b/wcfsetup/install/files/lib/system/background/job/AbstractBackgroundJob.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\background\job;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/background/job/EmailDeliveryBackgroundJob.class.php b/wcfsetup/install/files/lib/system/background/job/EmailDeliveryBackgroundJob.class.php
index 04d4bec4c8..82cdde2d5e 100644
--- a/wcfsetup/install/files/lib/system/background/job/EmailDeliveryBackgroundJob.class.php
+++ b/wcfsetup/install/files/lib/system/background/job/EmailDeliveryBackgroundJob.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\background\job;
 use wcf\system\email\transport\exception\PermanentFailure;
 use wcf\system\email\Email;
diff --git a/wcfsetup/install/files/lib/system/bbcode/AbstractBBCode.class.php b/wcfsetup/install/files/lib/system/bbcode/AbstractBBCode.class.php
index a78126f1a2..3dcc8267b4 100644
--- a/wcfsetup/install/files/lib/system/bbcode/AbstractBBCode.class.php
+++ b/wcfsetup/install/files/lib/system/bbcode/AbstractBBCode.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\bbcode;
 use wcf\data\bbcode\BBCode;
 use wcf\data\DatabaseObjectDecorator;
diff --git a/wcfsetup/install/files/lib/system/bbcode/AttachmentBBCode.class.php b/wcfsetup/install/files/lib/system/bbcode/AttachmentBBCode.class.php
index b4e04ec746..d4a6c6e65d 100644
--- a/wcfsetup/install/files/lib/system/bbcode/AttachmentBBCode.class.php
+++ b/wcfsetup/install/files/lib/system/bbcode/AttachmentBBCode.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\bbcode;
 use wcf\data\attachment\GroupedAttachmentList;
 use wcf\system\message\embedded\object\MessageEmbeddedObjectManager;
diff --git a/wcfsetup/install/files/lib/system/bbcode/BBCodeHandler.class.php b/wcfsetup/install/files/lib/system/bbcode/BBCodeHandler.class.php
index f1029271ad..b4b6a638c2 100644
--- a/wcfsetup/install/files/lib/system/bbcode/BBCodeHandler.class.php
+++ b/wcfsetup/install/files/lib/system/bbcode/BBCodeHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\bbcode;
 use wcf\data\bbcode\BBCode;
 use wcf\data\bbcode\BBCodeCache;
diff --git a/wcfsetup/install/files/lib/system/bbcode/BBCodeParser.class.php b/wcfsetup/install/files/lib/system/bbcode/BBCodeParser.class.php
index f9badfceca..1820ef5dda 100644
--- a/wcfsetup/install/files/lib/system/bbcode/BBCodeParser.class.php
+++ b/wcfsetup/install/files/lib/system/bbcode/BBCodeParser.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\bbcode;
 use wcf\data\bbcode\attribute\BBCodeAttribute;
 use wcf\data\bbcode\BBCode;
diff --git a/wcfsetup/install/files/lib/system/bbcode/EmailBBCode.class.php b/wcfsetup/install/files/lib/system/bbcode/EmailBBCode.class.php
index 00b287370b..2909150d2b 100644
--- a/wcfsetup/install/files/lib/system/bbcode/EmailBBCode.class.php
+++ b/wcfsetup/install/files/lib/system/bbcode/EmailBBCode.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\bbcode;
 use wcf\util\StringUtil;
 
diff --git a/wcfsetup/install/files/lib/system/bbcode/HtmlBBCodeParser.class.php b/wcfsetup/install/files/lib/system/bbcode/HtmlBBCodeParser.class.php
index 78dd78c8ea..40f181ff15 100644
--- a/wcfsetup/install/files/lib/system/bbcode/HtmlBBCodeParser.class.php
+++ b/wcfsetup/install/files/lib/system/bbcode/HtmlBBCodeParser.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\bbcode;
 use wcf\data\bbcode\attribute\BBCodeAttribute;
 use wcf\system\exception\SystemException;
diff --git a/wcfsetup/install/files/lib/system/bbcode/IBBCode.class.php b/wcfsetup/install/files/lib/system/bbcode/IBBCode.class.php
index 4ba3da8140..f8c9b6d1ca 100644
--- a/wcfsetup/install/files/lib/system/bbcode/IBBCode.class.php
+++ b/wcfsetup/install/files/lib/system/bbcode/IBBCode.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\bbcode;
 use wcf\data\IDatabaseObjectProcessor;
 
diff --git a/wcfsetup/install/files/lib/system/bbcode/KeywordHighlighter.class.php b/wcfsetup/install/files/lib/system/bbcode/KeywordHighlighter.class.php
index bb2b5f2acd..606b70e782 100644
--- a/wcfsetup/install/files/lib/system/bbcode/KeywordHighlighter.class.php
+++ b/wcfsetup/install/files/lib/system/bbcode/KeywordHighlighter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\bbcode;
 use wcf\system\SingletonFactory;
 use wcf\util\ArrayUtil;
diff --git a/wcfsetup/install/files/lib/system/bbcode/MediaBBCode.class.php b/wcfsetup/install/files/lib/system/bbcode/MediaBBCode.class.php
index 58d5bf9662..2d4a81c954 100644
--- a/wcfsetup/install/files/lib/system/bbcode/MediaBBCode.class.php
+++ b/wcfsetup/install/files/lib/system/bbcode/MediaBBCode.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\bbcode;
 use wcf\data\bbcode\media\provider\BBCodeMediaProvider;
 use wcf\util\StringUtil;
diff --git a/wcfsetup/install/files/lib/system/bbcode/MessageParser.class.php b/wcfsetup/install/files/lib/system/bbcode/MessageParser.class.php
index 8f5d6f6f5d..fb77f37dc2 100644
--- a/wcfsetup/install/files/lib/system/bbcode/MessageParser.class.php
+++ b/wcfsetup/install/files/lib/system/bbcode/MessageParser.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\bbcode;
 use wcf\data\bbcode\attribute\BBCodeAttribute;
 use wcf\data\smiley\Smiley;
diff --git a/wcfsetup/install/files/lib/system/bbcode/SimpleMessageParser.class.php b/wcfsetup/install/files/lib/system/bbcode/SimpleMessageParser.class.php
index 298e71c069..40a788f0f9 100644
--- a/wcfsetup/install/files/lib/system/bbcode/SimpleMessageParser.class.php
+++ b/wcfsetup/install/files/lib/system/bbcode/SimpleMessageParser.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\bbcode;
 use wcf\data\smiley\Smiley;
 use wcf\data\smiley\SmileyCache;
diff --git a/wcfsetup/install/files/lib/system/bbcode/TdBBCode.class.php b/wcfsetup/install/files/lib/system/bbcode/TdBBCode.class.php
index dfb5ade30a..d9108e4696 100644
--- a/wcfsetup/install/files/lib/system/bbcode/TdBBCode.class.php
+++ b/wcfsetup/install/files/lib/system/bbcode/TdBBCode.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\bbcode;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/bbcode/TrBBCode.class.php b/wcfsetup/install/files/lib/system/bbcode/TrBBCode.class.php
index eeb55bcdc2..6c5873c274 100644
--- a/wcfsetup/install/files/lib/system/bbcode/TrBBCode.class.php
+++ b/wcfsetup/install/files/lib/system/bbcode/TrBBCode.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\bbcode;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/bbcode/UserBBCode.class.php b/wcfsetup/install/files/lib/system/bbcode/UserBBCode.class.php
index 4bc492e3ca..8bd0eb66b4 100644
--- a/wcfsetup/install/files/lib/system/bbcode/UserBBCode.class.php
+++ b/wcfsetup/install/files/lib/system/bbcode/UserBBCode.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\bbcode;
 use wcf\data\user\UserProfile;
 use wcf\system\message\embedded\object\MessageEmbeddedObjectManager;
diff --git a/wcfsetup/install/files/lib/system/bbcode/WoltLabSuiteMediaBBCode.class.php b/wcfsetup/install/files/lib/system/bbcode/WoltLabSuiteMediaBBCode.class.php
index 1806f6050f..67eb80f9b8 100644
--- a/wcfsetup/install/files/lib/system/bbcode/WoltLabSuiteMediaBBCode.class.php
+++ b/wcfsetup/install/files/lib/system/bbcode/WoltLabSuiteMediaBBCode.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\bbcode;
 use wcf\data\media\ViewableMedia;
 use wcf\system\message\embedded\object\MessageEmbeddedObjectManager;
diff --git a/wcfsetup/install/files/lib/system/bbcode/WoltLabSuitePageBBCode.class.php b/wcfsetup/install/files/lib/system/bbcode/WoltLabSuitePageBBCode.class.php
index 4bfb5862d7..499f9dc10b 100644
--- a/wcfsetup/install/files/lib/system/bbcode/WoltLabSuitePageBBCode.class.php
+++ b/wcfsetup/install/files/lib/system/bbcode/WoltLabSuitePageBBCode.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\bbcode;
 use wcf\data\page\Page;
 use wcf\system\message\embedded\object\MessageEmbeddedObjectManager;
diff --git a/wcfsetup/install/files/lib/system/bbcode/highlighter/BashHighlighter.class.php b/wcfsetup/install/files/lib/system/bbcode/highlighter/BashHighlighter.class.php
index 7baa188b1d..d9667d34f1 100644
--- a/wcfsetup/install/files/lib/system/bbcode/highlighter/BashHighlighter.class.php
+++ b/wcfsetup/install/files/lib/system/bbcode/highlighter/BashHighlighter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\bbcode\highlighter;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/bbcode/highlighter/CHighlighter.class.php b/wcfsetup/install/files/lib/system/bbcode/highlighter/CHighlighter.class.php
index 8315ea11c1..c8e8b1257c 100644
--- a/wcfsetup/install/files/lib/system/bbcode/highlighter/CHighlighter.class.php
+++ b/wcfsetup/install/files/lib/system/bbcode/highlighter/CHighlighter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\bbcode\highlighter;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/bbcode/highlighter/CssHighlighter.class.php b/wcfsetup/install/files/lib/system/bbcode/highlighter/CssHighlighter.class.php
index 5fc9357d5e..14de08b96d 100644
--- a/wcfsetup/install/files/lib/system/bbcode/highlighter/CssHighlighter.class.php
+++ b/wcfsetup/install/files/lib/system/bbcode/highlighter/CssHighlighter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\bbcode\highlighter;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/bbcode/highlighter/DiffHighlighter.class.php b/wcfsetup/install/files/lib/system/bbcode/highlighter/DiffHighlighter.class.php
index 8800ef1e94..0997712b77 100644
--- a/wcfsetup/install/files/lib/system/bbcode/highlighter/DiffHighlighter.class.php
+++ b/wcfsetup/install/files/lib/system/bbcode/highlighter/DiffHighlighter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\bbcode\highlighter;
 use wcf\util\StringUtil;
 
diff --git a/wcfsetup/install/files/lib/system/bbcode/highlighter/Highlighter.class.php b/wcfsetup/install/files/lib/system/bbcode/highlighter/Highlighter.class.php
index b2b9abd7c7..3eaaf1dfea 100644
--- a/wcfsetup/install/files/lib/system/bbcode/highlighter/Highlighter.class.php
+++ b/wcfsetup/install/files/lib/system/bbcode/highlighter/Highlighter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\bbcode\highlighter;
 use wcf\system\Regex;
 use wcf\system\SingletonFactory;
diff --git a/wcfsetup/install/files/lib/system/bbcode/highlighter/HtmlHighlighter.class.php b/wcfsetup/install/files/lib/system/bbcode/highlighter/HtmlHighlighter.class.php
index dafbd9956c..0e0cfe4043 100644
--- a/wcfsetup/install/files/lib/system/bbcode/highlighter/HtmlHighlighter.class.php
+++ b/wcfsetup/install/files/lib/system/bbcode/highlighter/HtmlHighlighter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\bbcode\highlighter;
 use wcf\system\Regex;
 use wcf\util\StringStack;
diff --git a/wcfsetup/install/files/lib/system/bbcode/highlighter/JavaHighlighter.class.php b/wcfsetup/install/files/lib/system/bbcode/highlighter/JavaHighlighter.class.php
index e50c18fe16..f95a95b710 100644
--- a/wcfsetup/install/files/lib/system/bbcode/highlighter/JavaHighlighter.class.php
+++ b/wcfsetup/install/files/lib/system/bbcode/highlighter/JavaHighlighter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\bbcode\highlighter;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/bbcode/highlighter/JsHighlighter.class.php b/wcfsetup/install/files/lib/system/bbcode/highlighter/JsHighlighter.class.php
index 93c2c44140..00dadb647c 100644
--- a/wcfsetup/install/files/lib/system/bbcode/highlighter/JsHighlighter.class.php
+++ b/wcfsetup/install/files/lib/system/bbcode/highlighter/JsHighlighter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\bbcode\highlighter;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/bbcode/highlighter/PerlHighlighter.class.php b/wcfsetup/install/files/lib/system/bbcode/highlighter/PerlHighlighter.class.php
index 1db4861338..87d8228476 100644
--- a/wcfsetup/install/files/lib/system/bbcode/highlighter/PerlHighlighter.class.php
+++ b/wcfsetup/install/files/lib/system/bbcode/highlighter/PerlHighlighter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\bbcode\highlighter;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/bbcode/highlighter/PhpHighlighter.class.php b/wcfsetup/install/files/lib/system/bbcode/highlighter/PhpHighlighter.class.php
index 9ab4181ef5..3577e4aaf1 100644
--- a/wcfsetup/install/files/lib/system/bbcode/highlighter/PhpHighlighter.class.php
+++ b/wcfsetup/install/files/lib/system/bbcode/highlighter/PhpHighlighter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\bbcode\highlighter;
 use wcf\system\Regex;
 
diff --git a/wcfsetup/install/files/lib/system/bbcode/highlighter/PlainHighlighter.class.php b/wcfsetup/install/files/lib/system/bbcode/highlighter/PlainHighlighter.class.php
index c65a47ae1e..3b9282426a 100644
--- a/wcfsetup/install/files/lib/system/bbcode/highlighter/PlainHighlighter.class.php
+++ b/wcfsetup/install/files/lib/system/bbcode/highlighter/PlainHighlighter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\bbcode\highlighter;
 use wcf\util\StringUtil;
 
diff --git a/wcfsetup/install/files/lib/system/bbcode/highlighter/PythonHighlighter.class.php b/wcfsetup/install/files/lib/system/bbcode/highlighter/PythonHighlighter.class.php
index 5e36c62016..b901fd414e 100644
--- a/wcfsetup/install/files/lib/system/bbcode/highlighter/PythonHighlighter.class.php
+++ b/wcfsetup/install/files/lib/system/bbcode/highlighter/PythonHighlighter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\bbcode\highlighter;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/bbcode/highlighter/SqlHighlighter.class.php b/wcfsetup/install/files/lib/system/bbcode/highlighter/SqlHighlighter.class.php
index a60a7e64f1..a2439c1d54 100644
--- a/wcfsetup/install/files/lib/system/bbcode/highlighter/SqlHighlighter.class.php
+++ b/wcfsetup/install/files/lib/system/bbcode/highlighter/SqlHighlighter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\bbcode\highlighter;
 use wcf\util\StringStack;
 use wcf\util\StringUtil;
diff --git a/wcfsetup/install/files/lib/system/bbcode/highlighter/TexHighlighter.class.php b/wcfsetup/install/files/lib/system/bbcode/highlighter/TexHighlighter.class.php
index 0ad133cbd4..8d34880ff8 100644
--- a/wcfsetup/install/files/lib/system/bbcode/highlighter/TexHighlighter.class.php
+++ b/wcfsetup/install/files/lib/system/bbcode/highlighter/TexHighlighter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\bbcode\highlighter;
 use wcf\system\Regex;
 
diff --git a/wcfsetup/install/files/lib/system/bbcode/highlighter/TplHighlighter.class.php b/wcfsetup/install/files/lib/system/bbcode/highlighter/TplHighlighter.class.php
index e9d7026796..aec8413856 100644
--- a/wcfsetup/install/files/lib/system/bbcode/highlighter/TplHighlighter.class.php
+++ b/wcfsetup/install/files/lib/system/bbcode/highlighter/TplHighlighter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\bbcode\highlighter;
 use wcf\system\Regex;
 
diff --git a/wcfsetup/install/files/lib/system/bbcode/highlighter/XmlHighlighter.class.php b/wcfsetup/install/files/lib/system/bbcode/highlighter/XmlHighlighter.class.php
index 92529832a5..8f84fa9bfd 100644
--- a/wcfsetup/install/files/lib/system/bbcode/highlighter/XmlHighlighter.class.php
+++ b/wcfsetup/install/files/lib/system/bbcode/highlighter/XmlHighlighter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\bbcode\highlighter;
 use wcf\system\Regex;
 use wcf\util\StringStack;
diff --git a/wcfsetup/install/files/lib/system/bbcode/media/provider/IBBCodeMediaProvider.class.php b/wcfsetup/install/files/lib/system/bbcode/media/provider/IBBCodeMediaProvider.class.php
index a99e897a0a..8d6bd41739 100644
--- a/wcfsetup/install/files/lib/system/bbcode/media/provider/IBBCodeMediaProvider.class.php
+++ b/wcfsetup/install/files/lib/system/bbcode/media/provider/IBBCodeMediaProvider.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\bbcode\media\provider;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/bbcode/media/provider/YouTubeBBCodeMediaProvider.class.php b/wcfsetup/install/files/lib/system/bbcode/media/provider/YouTubeBBCodeMediaProvider.class.php
index 92da3dfa30..5522a7c76f 100644
--- a/wcfsetup/install/files/lib/system/bbcode/media/provider/YouTubeBBCodeMediaProvider.class.php
+++ b/wcfsetup/install/files/lib/system/bbcode/media/provider/YouTubeBBCodeMediaProvider.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\bbcode\media\provider;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/benchmark/Benchmark.class.php b/wcfsetup/install/files/lib/system/benchmark/Benchmark.class.php
index bfd5f86c7d..121e1b94d8 100644
--- a/wcfsetup/install/files/lib/system/benchmark/Benchmark.class.php
+++ b/wcfsetup/install/files/lib/system/benchmark/Benchmark.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\benchmark;
 use wcf\system\SingletonFactory;
 use wcf\util\FileUtil;
diff --git a/wcfsetup/install/files/lib/system/box/AbstractBoxController.class.php b/wcfsetup/install/files/lib/system/box/AbstractBoxController.class.php
index 4aadde7875..0adb35d648 100644
--- a/wcfsetup/install/files/lib/system/box/AbstractBoxController.class.php
+++ b/wcfsetup/install/files/lib/system/box/AbstractBoxController.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\box;
 use wcf\data\box\Box;
 use wcf\data\box\BoxAction;
diff --git a/wcfsetup/install/files/lib/system/box/AbstractCommentListBoxController.class.php b/wcfsetup/install/files/lib/system/box/AbstractCommentListBoxController.class.php
index 99f725ea66..e43f026bc6 100644
--- a/wcfsetup/install/files/lib/system/box/AbstractCommentListBoxController.class.php
+++ b/wcfsetup/install/files/lib/system/box/AbstractCommentListBoxController.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\box;
 use wcf\data\comment\ViewableCommentList;
 use wcf\data\object\type\ObjectType;
diff --git a/wcfsetup/install/files/lib/system/box/AbstractDatabaseObjectListBoxController.class.php b/wcfsetup/install/files/lib/system/box/AbstractDatabaseObjectListBoxController.class.php
index 6c3f19a69e..839402c2a7 100644
--- a/wcfsetup/install/files/lib/system/box/AbstractDatabaseObjectListBoxController.class.php
+++ b/wcfsetup/install/files/lib/system/box/AbstractDatabaseObjectListBoxController.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\box;
 use wcf\data\box\Box;
 use wcf\data\object\type\ObjectType;
diff --git a/wcfsetup/install/files/lib/system/box/ArticleCategoriesBoxController.class.php b/wcfsetup/install/files/lib/system/box/ArticleCategoriesBoxController.class.php
index f935679f15..0dfbdb60fa 100644
--- a/wcfsetup/install/files/lib/system/box/ArticleCategoriesBoxController.class.php
+++ b/wcfsetup/install/files/lib/system/box/ArticleCategoriesBoxController.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\box;
 use wcf\data\article\category\ArticleCategoryNodeTree;
 use wcf\page\ArticlePage;
diff --git a/wcfsetup/install/files/lib/system/box/ArticleCommentListBoxController.class.php b/wcfsetup/install/files/lib/system/box/ArticleCommentListBoxController.class.php
index 45d7f1734e..5378c1173f 100644
--- a/wcfsetup/install/files/lib/system/box/ArticleCommentListBoxController.class.php
+++ b/wcfsetup/install/files/lib/system/box/ArticleCommentListBoxController.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\box;
 use wcf\data\article\category\ArticleCategory;
 use wcf\data\article\Article;
diff --git a/wcfsetup/install/files/lib/system/box/ArticleListBoxController.class.php b/wcfsetup/install/files/lib/system/box/ArticleListBoxController.class.php
index 5816a6b4a7..3bd52f70c4 100644
--- a/wcfsetup/install/files/lib/system/box/ArticleListBoxController.class.php
+++ b/wcfsetup/install/files/lib/system/box/ArticleListBoxController.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\box;
 use wcf\data\article\AccessibleArticleList;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/system/box/ArticleTagCloudBoxController.class.php b/wcfsetup/install/files/lib/system/box/ArticleTagCloudBoxController.class.php
index a8270b1061..0844332172 100644
--- a/wcfsetup/install/files/lib/system/box/ArticleTagCloudBoxController.class.php
+++ b/wcfsetup/install/files/lib/system/box/ArticleTagCloudBoxController.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\box;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/box/BoxHandler.class.php b/wcfsetup/install/files/lib/system/box/BoxHandler.class.php
index 9293917a0c..a7ecf83bbd 100644
--- a/wcfsetup/install/files/lib/system/box/BoxHandler.class.php
+++ b/wcfsetup/install/files/lib/system/box/BoxHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\box;
 use wcf\data\box\Box;
 use wcf\data\box\BoxList;
diff --git a/wcfsetup/install/files/lib/system/box/FollowingsOnlineBoxController.class.php b/wcfsetup/install/files/lib/system/box/FollowingsOnlineBoxController.class.php
index 83f7a3ae1e..3ae669a541 100644
--- a/wcfsetup/install/files/lib/system/box/FollowingsOnlineBoxController.class.php
+++ b/wcfsetup/install/files/lib/system/box/FollowingsOnlineBoxController.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\box;
 use wcf\data\user\online\UsersOnlineList;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/system/box/IBoxController.class.php b/wcfsetup/install/files/lib/system/box/IBoxController.class.php
index d627de750c..19ad93d281 100644
--- a/wcfsetup/install/files/lib/system/box/IBoxController.class.php
+++ b/wcfsetup/install/files/lib/system/box/IBoxController.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\box;
 use wcf\data\box\Box;
 use wcf\data\media\ViewableMedia;
diff --git a/wcfsetup/install/files/lib/system/box/IConditionBoxController.class.php b/wcfsetup/install/files/lib/system/box/IConditionBoxController.class.php
index 2fb6b717ea..55df322d4e 100644
--- a/wcfsetup/install/files/lib/system/box/IConditionBoxController.class.php
+++ b/wcfsetup/install/files/lib/system/box/IConditionBoxController.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\box;
 use wcf\data\object\type\ObjectType;
 
diff --git a/wcfsetup/install/files/lib/system/box/PageCommentListBoxController.class.php b/wcfsetup/install/files/lib/system/box/PageCommentListBoxController.class.php
index 65f7137c1a..e9fd1dde47 100644
--- a/wcfsetup/install/files/lib/system/box/PageCommentListBoxController.class.php
+++ b/wcfsetup/install/files/lib/system/box/PageCommentListBoxController.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\box;
 use wcf\system\comment\CommentHandler;
 use wcf\system\request\RequestHandler;
diff --git a/wcfsetup/install/files/lib/system/box/PaidSubscriptionsBoxController.class.php b/wcfsetup/install/files/lib/system/box/PaidSubscriptionsBoxController.class.php
index 3da04fd39c..5bbb75cda3 100644
--- a/wcfsetup/install/files/lib/system/box/PaidSubscriptionsBoxController.class.php
+++ b/wcfsetup/install/files/lib/system/box/PaidSubscriptionsBoxController.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\box;
 use wcf\data\paid\subscription\user\PaidSubscriptionUserList;
 use wcf\system\cache\builder\PaidSubscriptionCacheBuilder;
diff --git a/wcfsetup/install/files/lib/system/box/RecentActivityListBoxController.class.php b/wcfsetup/install/files/lib/system/box/RecentActivityListBoxController.class.php
index cd141fa627..b9095ae4b0 100644
--- a/wcfsetup/install/files/lib/system/box/RecentActivityListBoxController.class.php
+++ b/wcfsetup/install/files/lib/system/box/RecentActivityListBoxController.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\box;
 use wcf\data\user\activity\event\ViewableUserActivityEventList;
 use wcf\system\condition\IObjectListCondition;
diff --git a/wcfsetup/install/files/lib/system/box/RegisterButtonBoxController.class.php b/wcfsetup/install/files/lib/system/box/RegisterButtonBoxController.class.php
index e1acb8329b..fca38ea5b3 100644
--- a/wcfsetup/install/files/lib/system/box/RegisterButtonBoxController.class.php
+++ b/wcfsetup/install/files/lib/system/box/RegisterButtonBoxController.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\box;
 use wcf\system\WCF;
 
diff --git a/wcfsetup/install/files/lib/system/box/SignedInAsBoxController.class.php b/wcfsetup/install/files/lib/system/box/SignedInAsBoxController.class.php
index 7dbd161a73..d0cef4592d 100644
--- a/wcfsetup/install/files/lib/system/box/SignedInAsBoxController.class.php
+++ b/wcfsetup/install/files/lib/system/box/SignedInAsBoxController.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\box;
 use wcf\system\WCF;
 
diff --git a/wcfsetup/install/files/lib/system/box/StaffOnlineListBoxController.class.php b/wcfsetup/install/files/lib/system/box/StaffOnlineListBoxController.class.php
index a5b7696446..fe710123cb 100644
--- a/wcfsetup/install/files/lib/system/box/StaffOnlineListBoxController.class.php
+++ b/wcfsetup/install/files/lib/system/box/StaffOnlineListBoxController.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\box;
 use wcf\data\user\online\UsersOnlineList;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/system/box/StatisticsBoxController.class.php b/wcfsetup/install/files/lib/system/box/StatisticsBoxController.class.php
index e0a9a3c233..45b2944934 100644
--- a/wcfsetup/install/files/lib/system/box/StatisticsBoxController.class.php
+++ b/wcfsetup/install/files/lib/system/box/StatisticsBoxController.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\box;
 use wcf\system\cache\builder\UserStatsCacheBuilder;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/system/box/TagCloudBoxController.class.php b/wcfsetup/install/files/lib/system/box/TagCloudBoxController.class.php
index bd6ff58308..e1875fab96 100644
--- a/wcfsetup/install/files/lib/system/box/TagCloudBoxController.class.php
+++ b/wcfsetup/install/files/lib/system/box/TagCloudBoxController.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\box;
 use wcf\system\language\LanguageFactory;
 use wcf\system\tagging\TagCloud;
diff --git a/wcfsetup/install/files/lib/system/box/TodaysBirthdaysBoxController.class.php b/wcfsetup/install/files/lib/system/box/TodaysBirthdaysBoxController.class.php
index d11338cc34..89376f7c52 100644
--- a/wcfsetup/install/files/lib/system/box/TodaysBirthdaysBoxController.class.php
+++ b/wcfsetup/install/files/lib/system/box/TodaysBirthdaysBoxController.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\box;
 use wcf\data\user\option\UserOption;
 use wcf\system\cache\builder\UserOptionCacheBuilder;
diff --git a/wcfsetup/install/files/lib/system/box/TodaysFollowingBirthdaysBoxController.class.php b/wcfsetup/install/files/lib/system/box/TodaysFollowingBirthdaysBoxController.class.php
index a2dce1b78f..e4a54e5c2c 100644
--- a/wcfsetup/install/files/lib/system/box/TodaysFollowingBirthdaysBoxController.class.php
+++ b/wcfsetup/install/files/lib/system/box/TodaysFollowingBirthdaysBoxController.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\box;
 use wcf\system\WCF;
 
diff --git a/wcfsetup/install/files/lib/system/box/UserListBoxController.class.php b/wcfsetup/install/files/lib/system/box/UserListBoxController.class.php
index c97a2e5d9c..afbba423d2 100644
--- a/wcfsetup/install/files/lib/system/box/UserListBoxController.class.php
+++ b/wcfsetup/install/files/lib/system/box/UserListBoxController.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\box;
 use wcf\data\user\UserProfileList;
 use wcf\data\DatabaseObject;
diff --git a/wcfsetup/install/files/lib/system/box/UserOnlineListBoxController.class.php b/wcfsetup/install/files/lib/system/box/UserOnlineListBoxController.class.php
index 2bbec1efbf..8d292b37b9 100644
--- a/wcfsetup/install/files/lib/system/box/UserOnlineListBoxController.class.php
+++ b/wcfsetup/install/files/lib/system/box/UserOnlineListBoxController.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\box;
 use wcf\data\user\online\UsersOnlineList;
 use wcf\system\event\EventHandler;
diff --git a/wcfsetup/install/files/lib/system/box/UserTrophyListBoxController.class.php b/wcfsetup/install/files/lib/system/box/UserTrophyListBoxController.class.php
index 3c327fc0bc..9826b9e836 100644
--- a/wcfsetup/install/files/lib/system/box/UserTrophyListBoxController.class.php
+++ b/wcfsetup/install/files/lib/system/box/UserTrophyListBoxController.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\box;
 use wcf\data\user\trophy\UserTrophyList;
 use wcf\system\cache\builder\UserOptionCacheBuilder;
diff --git a/wcfsetup/install/files/lib/system/box/WhoWasOnlineBoxController.class.php b/wcfsetup/install/files/lib/system/box/WhoWasOnlineBoxController.class.php
index b4ce7fea63..6dc0a6c1c9 100644
--- a/wcfsetup/install/files/lib/system/box/WhoWasOnlineBoxController.class.php
+++ b/wcfsetup/install/files/lib/system/box/WhoWasOnlineBoxController.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\box;
 use wcf\data\user\online\UsersOnlineList;
 use wcf\data\user\UserProfile;
diff --git a/wcfsetup/install/files/lib/system/breadcrumb/Breadcrumb.class.php b/wcfsetup/install/files/lib/system/breadcrumb/Breadcrumb.class.php
index 25ce553d4a..7307e5433d 100644
--- a/wcfsetup/install/files/lib/system/breadcrumb/Breadcrumb.class.php
+++ b/wcfsetup/install/files/lib/system/breadcrumb/Breadcrumb.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\breadcrumb;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/breadcrumb/Breadcrumbs.class.php b/wcfsetup/install/files/lib/system/breadcrumb/Breadcrumbs.class.php
index ce34e7ac8b..170b78b6ef 100644
--- a/wcfsetup/install/files/lib/system/breadcrumb/Breadcrumbs.class.php
+++ b/wcfsetup/install/files/lib/system/breadcrumb/Breadcrumbs.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\breadcrumb;
 use wcf\data\page\PageCache;
 use wcf\system\page\PageLocationManager;
diff --git a/wcfsetup/install/files/lib/system/breadcrumb/IBreadcrumbProvider.class.php b/wcfsetup/install/files/lib/system/breadcrumb/IBreadcrumbProvider.class.php
index b7b9649e8e..dca56b9050 100644
--- a/wcfsetup/install/files/lib/system/breadcrumb/IBreadcrumbProvider.class.php
+++ b/wcfsetup/install/files/lib/system/breadcrumb/IBreadcrumbProvider.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\breadcrumb;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/bulk/processing/AbstractBulkProcessableObjectType.class.php b/wcfsetup/install/files/lib/system/bulk/processing/AbstractBulkProcessableObjectType.class.php
index d597be5346..0a20df13f1 100644
--- a/wcfsetup/install/files/lib/system/bulk/processing/AbstractBulkProcessableObjectType.class.php
+++ b/wcfsetup/install/files/lib/system/bulk/processing/AbstractBulkProcessableObjectType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\bulk\processing;
 use wcf\data\object\type\AbstractObjectTypeProcessor;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/system/bulk/processing/AbstractBulkProcessingAction.class.php b/wcfsetup/install/files/lib/system/bulk/processing/AbstractBulkProcessingAction.class.php
index dddf962b33..15d37ddba8 100644
--- a/wcfsetup/install/files/lib/system/bulk/processing/AbstractBulkProcessingAction.class.php
+++ b/wcfsetup/install/files/lib/system/bulk/processing/AbstractBulkProcessingAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\bulk\processing;
 use wcf\data\object\type\AbstractObjectTypeProcessor;
 
diff --git a/wcfsetup/install/files/lib/system/bulk/processing/IBulkProcessableObjectType.class.php b/wcfsetup/install/files/lib/system/bulk/processing/IBulkProcessableObjectType.class.php
index 75629f2593..2f7c4075df 100644
--- a/wcfsetup/install/files/lib/system/bulk/processing/IBulkProcessableObjectType.class.php
+++ b/wcfsetup/install/files/lib/system/bulk/processing/IBulkProcessableObjectType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\bulk\processing;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/bulk/processing/IBulkProcessingAction.class.php b/wcfsetup/install/files/lib/system/bulk/processing/IBulkProcessingAction.class.php
index f9a137ac04..455fd7f9e4 100644
--- a/wcfsetup/install/files/lib/system/bulk/processing/IBulkProcessingAction.class.php
+++ b/wcfsetup/install/files/lib/system/bulk/processing/IBulkProcessingAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\bulk\processing;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/system/bulk/processing/TReasonedBulkProcessingAction.class.php b/wcfsetup/install/files/lib/system/bulk/processing/TReasonedBulkProcessingAction.class.php
index 6915c1f3ab..1566a52d98 100644
--- a/wcfsetup/install/files/lib/system/bulk/processing/TReasonedBulkProcessingAction.class.php
+++ b/wcfsetup/install/files/lib/system/bulk/processing/TReasonedBulkProcessingAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\bulk\processing;
 use wcf\util\StringUtil;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/system/bulk/processing/user/AbstractUserBulkProcessingAction.class.php b/wcfsetup/install/files/lib/system/bulk/processing/user/AbstractUserBulkProcessingAction.class.php
index 4f5ecd9f78..48189a264a 100644
--- a/wcfsetup/install/files/lib/system/bulk/processing/user/AbstractUserBulkProcessingAction.class.php
+++ b/wcfsetup/install/files/lib/system/bulk/processing/user/AbstractUserBulkProcessingAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\bulk\processing\user;
 use wcf\data\user\group\UserGroup;
 use wcf\data\user\User;
diff --git a/wcfsetup/install/files/lib/system/bulk/processing/user/AbstractUserGroupsUserBulkProcessingAction.class.php b/wcfsetup/install/files/lib/system/bulk/processing/user/AbstractUserGroupsUserBulkProcessingAction.class.php
index ddfdd9c897..bf0920ece2 100644
--- a/wcfsetup/install/files/lib/system/bulk/processing/user/AbstractUserGroupsUserBulkProcessingAction.class.php
+++ b/wcfsetup/install/files/lib/system/bulk/processing/user/AbstractUserGroupsUserBulkProcessingAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\bulk\processing\user;
 use wcf\data\user\group\UserGroup;
 use wcf\data\user\UserEditor;
diff --git a/wcfsetup/install/files/lib/system/bulk/processing/user/AssignToUserGroupsUserBulkProcessingAction.class.php b/wcfsetup/install/files/lib/system/bulk/processing/user/AssignToUserGroupsUserBulkProcessingAction.class.php
index f780f42a17..e07ad57cf3 100644
--- a/wcfsetup/install/files/lib/system/bulk/processing/user/AssignToUserGroupsUserBulkProcessingAction.class.php
+++ b/wcfsetup/install/files/lib/system/bulk/processing/user/AssignToUserGroupsUserBulkProcessingAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\bulk\processing\user;
 use wcf\data\user\UserEditor;
 
diff --git a/wcfsetup/install/files/lib/system/bulk/processing/user/DeleteUserBulkProcessingAction.class.php b/wcfsetup/install/files/lib/system/bulk/processing/user/DeleteUserBulkProcessingAction.class.php
index e25153992c..86cd013e5c 100644
--- a/wcfsetup/install/files/lib/system/bulk/processing/user/DeleteUserBulkProcessingAction.class.php
+++ b/wcfsetup/install/files/lib/system/bulk/processing/user/DeleteUserBulkProcessingAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\bulk\processing\user;
 use wcf\data\user\UserAction;
 use wcf\data\user\UserList;
diff --git a/wcfsetup/install/files/lib/system/bulk/processing/user/ExportMailAddressUserBulkProcessingAction.class.php b/wcfsetup/install/files/lib/system/bulk/processing/user/ExportMailAddressUserBulkProcessingAction.class.php
index 839bc52a5e..f53ea912a2 100644
--- a/wcfsetup/install/files/lib/system/bulk/processing/user/ExportMailAddressUserBulkProcessingAction.class.php
+++ b/wcfsetup/install/files/lib/system/bulk/processing/user/ExportMailAddressUserBulkProcessingAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\bulk\processing\user;
 use wcf\data\user\UserList;
 use wcf\data\DatabaseObjectList;
diff --git a/wcfsetup/install/files/lib/system/bulk/processing/user/RemoveFromUserGroupsUserBulkProcessingAction.class.php b/wcfsetup/install/files/lib/system/bulk/processing/user/RemoveFromUserGroupsUserBulkProcessingAction.class.php
index 97ad0b278e..674202f843 100644
--- a/wcfsetup/install/files/lib/system/bulk/processing/user/RemoveFromUserGroupsUserBulkProcessingAction.class.php
+++ b/wcfsetup/install/files/lib/system/bulk/processing/user/RemoveFromUserGroupsUserBulkProcessingAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\bulk\processing\user;
 use wcf\data\user\UserEditor;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/system/bulk/processing/user/SendMailUserBulkProcessingAction.class.php b/wcfsetup/install/files/lib/system/bulk/processing/user/SendMailUserBulkProcessingAction.class.php
index d1a3d37386..dea7b56fd8 100644
--- a/wcfsetup/install/files/lib/system/bulk/processing/user/SendMailUserBulkProcessingAction.class.php
+++ b/wcfsetup/install/files/lib/system/bulk/processing/user/SendMailUserBulkProcessingAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\bulk\processing\user;
 use wcf\data\user\UserList;
 use wcf\data\DatabaseObjectList;
diff --git a/wcfsetup/install/files/lib/system/bulk/processing/user/UserBulkProcessableObjectType.class.php b/wcfsetup/install/files/lib/system/bulk/processing/user/UserBulkProcessableObjectType.class.php
index 63c0058b57..d248543df6 100644
--- a/wcfsetup/install/files/lib/system/bulk/processing/user/UserBulkProcessableObjectType.class.php
+++ b/wcfsetup/install/files/lib/system/bulk/processing/user/UserBulkProcessableObjectType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\bulk\processing\user;
 use wcf\system\bulk\processing\AbstractBulkProcessableObjectType;
 
diff --git a/wcfsetup/install/files/lib/system/cache/CacheHandler.class.php b/wcfsetup/install/files/lib/system/cache/CacheHandler.class.php
index 2aee4fe05b..bfc54c661b 100644
--- a/wcfsetup/install/files/lib/system/cache/CacheHandler.class.php
+++ b/wcfsetup/install/files/lib/system/cache/CacheHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache;
 use wcf\system\cache\builder\ICacheBuilder;
 use wcf\system\cache\source\DiskCacheSource;
diff --git a/wcfsetup/install/files/lib/system/cache/builder/ACLOptionCategoryCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/ACLOptionCategoryCacheBuilder.class.php
index 456e5c8510..9207bd2ef6 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/ACLOptionCategoryCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/ACLOptionCategoryCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 use wcf\data\acl\option\category\ACLOptionCategoryList;
 
diff --git a/wcfsetup/install/files/lib/system/cache/builder/ACPMenuCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/ACPMenuCacheBuilder.class.php
index 266186bbc3..b97e3cfeba 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/ACPMenuCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/ACPMenuCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 use wcf\acp\form\OptionForm;
 use wcf\data\acp\menu\item\ACPMenuItem;
diff --git a/wcfsetup/install/files/lib/system/cache/builder/ACPSearchProviderCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/ACPSearchProviderCacheBuilder.class.php
index c92a8fd2f6..3d49e34269 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/ACPSearchProviderCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/ACPSearchProviderCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 use wcf\data\acp\search\provider\ACPSearchProviderList;
 
diff --git a/wcfsetup/install/files/lib/system/cache/builder/AbstractCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/AbstractCacheBuilder.class.php
index 2cacba99a0..06cb00b391 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/AbstractCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/AbstractCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 use wcf\system\cache\CacheHandler;
 use wcf\system\exception\SystemException;
diff --git a/wcfsetup/install/files/lib/system/cache/builder/AbstractSortedUserCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/AbstractSortedUserCacheBuilder.class.php
index 0685f3ecc7..87f98d43aa 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/AbstractSortedUserCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/AbstractSortedUserCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 use wcf\data\user\UserList;
 
diff --git a/wcfsetup/install/files/lib/system/cache/builder/AdCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/AdCacheBuilder.class.php
index ccad4fbcfb..b337611de3 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/AdCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/AdCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 use wcf\data\ad\AdList;
 
diff --git a/wcfsetup/install/files/lib/system/cache/builder/ApplicationCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/ApplicationCacheBuilder.class.php
index 44bcf15951..35c5cd5a11 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/ApplicationCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/ApplicationCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 use wcf\data\application\ApplicationList;
 use wcf\data\package\Package;
diff --git a/wcfsetup/install/files/lib/system/cache/builder/ArticleCategoryLabelCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/ArticleCategoryLabelCacheBuilder.class.php
index a685267357..e9acbad76b 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/ArticleCategoryLabelCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/ArticleCategoryLabelCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\system\category\CategoryHandler;
diff --git a/wcfsetup/install/files/lib/system/cache/builder/BBCodeCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/BBCodeCacheBuilder.class.php
index 0250096219..d1ade7b2a6 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/BBCodeCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/BBCodeCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 use wcf\data\bbcode\attribute\BBCodeAttribute;
 use wcf\data\bbcode\BBCodeList;
diff --git a/wcfsetup/install/files/lib/system/cache/builder/BBCodeMediaProviderCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/BBCodeMediaProviderCacheBuilder.class.php
index 628c9e9fa0..a98f4af48b 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/BBCodeMediaProviderCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/BBCodeMediaProviderCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 use wcf\data\bbcode\media\provider\BBCodeMediaProviderList;
 
diff --git a/wcfsetup/install/files/lib/system/cache/builder/CaptchaQuestionCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/CaptchaQuestionCacheBuilder.class.php
index 962a801159..9d6f0e8b5b 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/CaptchaQuestionCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/CaptchaQuestionCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 use wcf\data\captcha\question\CaptchaQuestionList;
 
diff --git a/wcfsetup/install/files/lib/system/cache/builder/CategoryACLOptionCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/CategoryACLOptionCacheBuilder.class.php
index 7ef09e69de..c198b211f6 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/CategoryACLOptionCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/CategoryACLOptionCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 use wcf\data\category\Category;
 use wcf\system\acl\ACLHandler;
diff --git a/wcfsetup/install/files/lib/system/cache/builder/CategoryCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/CategoryCacheBuilder.class.php
index e4d2641643..9e175a4540 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/CategoryCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/CategoryCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 use wcf\data\category\CategoryList;
 
diff --git a/wcfsetup/install/files/lib/system/cache/builder/ClipboardActionCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/ClipboardActionCacheBuilder.class.php
index 59d71447e6..5843d6e981 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/ClipboardActionCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/ClipboardActionCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 use wcf\data\clipboard\action\ClipboardActionList;
 
diff --git a/wcfsetup/install/files/lib/system/cache/builder/ClipboardPageCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/ClipboardPageCacheBuilder.class.php
index cb70a7f405..6e72ca6504 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/ClipboardPageCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/ClipboardPageCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 use wcf\system\WCF;
 
diff --git a/wcfsetup/install/files/lib/system/cache/builder/ConditionCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/ConditionCacheBuilder.class.php
index 56119a72ee..2d8e8ef26a 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/ConditionCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/ConditionCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 use wcf\data\condition\ConditionList;
 use wcf\data\object\type\ObjectTypeCache;
diff --git a/wcfsetup/install/files/lib/system/cache/builder/ContactOptionCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/ContactOptionCacheBuilder.class.php
index e716f3e58a..ce86044de2 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/ContactOptionCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/ContactOptionCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 use wcf\data\contact\option\ContactOptionList;
 
diff --git a/wcfsetup/install/files/lib/system/cache/builder/CoreObjectCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/CoreObjectCacheBuilder.class.php
index 69a7d5872c..a104b97571 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/CoreObjectCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/CoreObjectCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 use wcf\data\core\object\CoreObjectList;
 
diff --git a/wcfsetup/install/files/lib/system/cache/builder/CronjobCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/CronjobCacheBuilder.class.php
index 911ff51f5a..96ac7b79ba 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/CronjobCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/CronjobCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 use wcf\system\WCF;
 
diff --git a/wcfsetup/install/files/lib/system/cache/builder/EventListenerCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/EventListenerCacheBuilder.class.php
index b8fc640adb..033e66687d 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/EventListenerCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/EventListenerCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 use wcf\data\event\listener\EventListener;
 use wcf\system\cache\CacheHandler;
diff --git a/wcfsetup/install/files/lib/system/cache/builder/ICacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/ICacheBuilder.class.php
index 8b58ecda9d..17e813578f 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/ICacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/ICacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/cache/builder/LabelCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/LabelCacheBuilder.class.php
index ea3deb2a7f..364852874d 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/LabelCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/LabelCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 use wcf\data\label\group\LabelGroupList;
 use wcf\data\label\group\ViewableLabelGroup;
diff --git a/wcfsetup/install/files/lib/system/cache/builder/LanguageCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/LanguageCacheBuilder.class.php
index d778868370..a8bdb8ca81 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/LanguageCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/LanguageCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 use wcf\data\language\category\LanguageCategoryList;
 use wcf\data\language\LanguageList;
diff --git a/wcfsetup/install/files/lib/system/cache/builder/MenuCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/MenuCacheBuilder.class.php
index 1ac292da9e..6742045dc9 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/MenuCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/MenuCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 use wcf\data\menu\item\MenuItemList;
 use wcf\data\menu\MenuList;
diff --git a/wcfsetup/install/files/lib/system/cache/builder/MostActiveMembersCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/MostActiveMembersCacheBuilder.class.php
index e9153fdf37..5b4ea8f013 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/MostActiveMembersCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/MostActiveMembersCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/cache/builder/MostLikedMembersCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/MostLikedMembersCacheBuilder.class.php
index 112b0590ae..e3b668151f 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/MostLikedMembersCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/MostLikedMembersCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/cache/builder/NewestMembersCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/NewestMembersCacheBuilder.class.php
index a93c5f0926..2013e0c13d 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/NewestMembersCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/NewestMembersCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/cache/builder/NoticeCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/NoticeCacheBuilder.class.php
index f0f6d04a30..393da12327 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/NoticeCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/NoticeCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 use wcf\data\notice\NoticeList;
 
diff --git a/wcfsetup/install/files/lib/system/cache/builder/ObjectTypeCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/ObjectTypeCacheBuilder.class.php
index c9fc0310bd..40ef26833a 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/ObjectTypeCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/ObjectTypeCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 use wcf\data\object\type\definition\ObjectTypeDefinition;
 use wcf\data\object\type\ObjectType;
diff --git a/wcfsetup/install/files/lib/system/cache/builder/OptionCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/OptionCacheBuilder.class.php
index 4811645ad1..cb1cbb9642 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/OptionCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/OptionCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 use wcf\data\option\category\OptionCategory;
 use wcf\data\option\Option;
diff --git a/wcfsetup/install/files/lib/system/cache/builder/PackageCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/PackageCacheBuilder.class.php
index b52bb3213e..244293ddee 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/PackageCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/PackageCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 use wcf\data\package\PackageList;
 
diff --git a/wcfsetup/install/files/lib/system/cache/builder/PackageUpdateCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/PackageUpdateCacheBuilder.class.php
index c20d663249..e3c620453e 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/PackageUpdateCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/PackageUpdateCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 use wcf\system\package\PackageUpdateDispatcher;
 
diff --git a/wcfsetup/install/files/lib/system/cache/builder/PageCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/PageCacheBuilder.class.php
index d19996874f..243181dfa8 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/PageCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/PageCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 use wcf\data\page\Page;
 use wcf\data\page\PageList;
diff --git a/wcfsetup/install/files/lib/system/cache/builder/PaidSubscriptionCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/PaidSubscriptionCacheBuilder.class.php
index 13d83633de..c8c653b7ea 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/PaidSubscriptionCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/PaidSubscriptionCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 use wcf\data\paid\subscription\PaidSubscriptionList;
 
diff --git a/wcfsetup/install/files/lib/system/cache/builder/RoutingCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/RoutingCacheBuilder.class.php
index 3b6e0a0994..5cf5f629f1 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/RoutingCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/RoutingCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 use wcf\acp\page\ArticleListPage;
 use wcf\data\application\Application;
diff --git a/wcfsetup/install/files/lib/system/cache/builder/SimpleAclCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/SimpleAclCacheBuilder.class.php
index 49b01d521c..222a62e445 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/SimpleAclCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/SimpleAclCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 use wcf\system\acl\simple\SimpleAclHandler;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/system/cache/builder/SmileyCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/SmileyCacheBuilder.class.php
index e1bb0bd171..9506db46ba 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/SmileyCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/SmileyCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 use wcf\data\smiley\Smiley;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/system/cache/builder/SpiderCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/SpiderCacheBuilder.class.php
index f17dd7f1f7..4d298e4810 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/SpiderCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/SpiderCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 use wcf\data\spider\SpiderList;
 
diff --git a/wcfsetup/install/files/lib/system/cache/builder/StyleCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/StyleCacheBuilder.class.php
index 11d4c1d2b0..c2c4dab137 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/StyleCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/StyleCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 use wcf\data\style\Style;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/system/cache/builder/TagCloudCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/TagCloudCacheBuilder.class.php
index 0ec55c6cda..b0b8907a5c 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/TagCloudCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/TagCloudCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\data\tag\Tag;
diff --git a/wcfsetup/install/files/lib/system/cache/builder/TemplateGroupCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/TemplateGroupCacheBuilder.class.php
index 7f521c6d68..91ebd4f548 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/TemplateGroupCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/TemplateGroupCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 use wcf\data\template\group\TemplateGroupList;
 
diff --git a/wcfsetup/install/files/lib/system/cache/builder/TemplateListenerCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/TemplateListenerCacheBuilder.class.php
index 7c5c055aa2..2c8ebf7411 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/TemplateListenerCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/TemplateListenerCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 use wcf\data\template\listener\TemplateListenerList;
 
diff --git a/wcfsetup/install/files/lib/system/cache/builder/TemplateListenerCodeCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/TemplateListenerCodeCacheBuilder.class.php
index 4a8a17e1b7..56bc46a84a 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/TemplateListenerCodeCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/TemplateListenerCodeCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 use wcf\data\template\listener\TemplateListenerList;
 
diff --git a/wcfsetup/install/files/lib/system/cache/builder/TrophyCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/TrophyCacheBuilder.class.php
index 697988f520..db543fcf29 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/TrophyCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/TrophyCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 use wcf\data\trophy\TrophyList;
 
diff --git a/wcfsetup/install/files/lib/system/cache/builder/TypedTagCloudCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/TypedTagCloudCacheBuilder.class.php
index f27c6ebb48..ffcb15550a 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/TypedTagCloudCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/TypedTagCloudCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/cache/builder/UserBirthdayCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/UserBirthdayCacheBuilder.class.php
index 521db230b3..4eacc9018e 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/UserBirthdayCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/UserBirthdayCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 use wcf\data\user\User;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/system/cache/builder/UserGroupAssignmentCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/UserGroupAssignmentCacheBuilder.class.php
index c853d6914a..fa64c07248 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/UserGroupAssignmentCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/UserGroupAssignmentCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 use wcf\data\user\group\assignment\UserGroupAssignmentList;
 
diff --git a/wcfsetup/install/files/lib/system/cache/builder/UserGroupCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/UserGroupCacheBuilder.class.php
index d75dbfd3c4..0b4672e379 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/UserGroupCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/UserGroupCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 use wcf\data\user\group\UserGroupList;
 
diff --git a/wcfsetup/install/files/lib/system/cache/builder/UserGroupOptionCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/UserGroupOptionCacheBuilder.class.php
index 8ca225b018..71202aeb1c 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/UserGroupOptionCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/UserGroupOptionCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 use wcf\data\user\group\option\UserGroupOption;
 
diff --git a/wcfsetup/install/files/lib/system/cache/builder/UserGroupPermissionCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/UserGroupPermissionCacheBuilder.class.php
index a1a15f21c7..c4517211d9 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/UserGroupPermissionCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/UserGroupPermissionCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 use wcf\data\user\group\option\UserGroupOption;
 use wcf\data\user\group\UserGroup;
diff --git a/wcfsetup/install/files/lib/system/cache/builder/UserMenuCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/UserMenuCacheBuilder.class.php
index 7d8042dd6b..1a9761642d 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/UserMenuCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/UserMenuCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 use wcf\data\user\menu\item\UserMenuItem;
 use wcf\form\SettingsForm;
diff --git a/wcfsetup/install/files/lib/system/cache/builder/UserNotificationEventCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/UserNotificationEventCacheBuilder.class.php
index 05a6511a00..3f5f92216a 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/UserNotificationEventCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/UserNotificationEventCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 use wcf\data\user\notification\event\UserNotificationEvent;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/system/cache/builder/UserOptionCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/UserOptionCacheBuilder.class.php
index d6707b8b6a..ca13731f35 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/UserOptionCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/UserOptionCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 use wcf\data\user\option\UserOption;
 
diff --git a/wcfsetup/install/files/lib/system/cache/builder/UserProfileMenuCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/UserProfileMenuCacheBuilder.class.php
index b3762452a4..d36703f166 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/UserProfileMenuCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/UserProfileMenuCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 use wcf\data\user\profile\menu\item\UserProfileMenuItemList;
 
diff --git a/wcfsetup/install/files/lib/system/cache/builder/UserStatsCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/UserStatsCacheBuilder.class.php
index 8efa197908..91236f56b2 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/UserStatsCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/UserStatsCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 use wcf\data\user\User;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/system/cache/builder/WhoWasOnlineCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/WhoWasOnlineCacheBuilder.class.php
index 16b8e97b2a..d608e25c24 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/WhoWasOnlineCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/WhoWasOnlineCacheBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\builder;
 use wcf\system\WCF;
 
diff --git a/wcfsetup/install/files/lib/system/cache/runtime/AbstractRuntimeCache.class.php b/wcfsetup/install/files/lib/system/cache/runtime/AbstractRuntimeCache.class.php
index 63b367dbc9..4417e1055c 100644
--- a/wcfsetup/install/files/lib/system/cache/runtime/AbstractRuntimeCache.class.php
+++ b/wcfsetup/install/files/lib/system/cache/runtime/AbstractRuntimeCache.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\runtime;
 use wcf\data\DatabaseObject;
 use wcf\data\DatabaseObjectList;
diff --git a/wcfsetup/install/files/lib/system/cache/runtime/CommentResponseRuntimeCache.class.php b/wcfsetup/install/files/lib/system/cache/runtime/CommentResponseRuntimeCache.class.php
index 4a9d11cf2a..09e70db3e1 100644
--- a/wcfsetup/install/files/lib/system/cache/runtime/CommentResponseRuntimeCache.class.php
+++ b/wcfsetup/install/files/lib/system/cache/runtime/CommentResponseRuntimeCache.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\runtime;
 use wcf\data\comment\response\CommentResponse;
 use wcf\data\comment\response\CommentResponseList;
diff --git a/wcfsetup/install/files/lib/system/cache/runtime/CommentRuntimeCache.class.php b/wcfsetup/install/files/lib/system/cache/runtime/CommentRuntimeCache.class.php
index df4efa531d..0e08676529 100644
--- a/wcfsetup/install/files/lib/system/cache/runtime/CommentRuntimeCache.class.php
+++ b/wcfsetup/install/files/lib/system/cache/runtime/CommentRuntimeCache.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\runtime;
 use wcf\data\comment\Comment;
 use wcf\data\comment\CommentList;
diff --git a/wcfsetup/install/files/lib/system/cache/runtime/IRuntimeCache.class.php b/wcfsetup/install/files/lib/system/cache/runtime/IRuntimeCache.class.php
index d5cfa8bd42..8ccd96fe9e 100644
--- a/wcfsetup/install/files/lib/system/cache/runtime/IRuntimeCache.class.php
+++ b/wcfsetup/install/files/lib/system/cache/runtime/IRuntimeCache.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\runtime;
 use wcf\data\DatabaseObject;
 
diff --git a/wcfsetup/install/files/lib/system/cache/runtime/MediaRuntimeCache.class.php b/wcfsetup/install/files/lib/system/cache/runtime/MediaRuntimeCache.class.php
index 49db3426c9..ec722c2be7 100644
--- a/wcfsetup/install/files/lib/system/cache/runtime/MediaRuntimeCache.class.php
+++ b/wcfsetup/install/files/lib/system/cache/runtime/MediaRuntimeCache.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\runtime;
 use wcf\data\media\Media;
 use wcf\data\media\MediaList;
diff --git a/wcfsetup/install/files/lib/system/cache/runtime/UserProfileRuntimeCache.class.php b/wcfsetup/install/files/lib/system/cache/runtime/UserProfileRuntimeCache.class.php
index f83f83d597..07384aea23 100644
--- a/wcfsetup/install/files/lib/system/cache/runtime/UserProfileRuntimeCache.class.php
+++ b/wcfsetup/install/files/lib/system/cache/runtime/UserProfileRuntimeCache.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\runtime;
 use wcf\data\user\UserProfile;
 use wcf\data\user\UserProfileList;
diff --git a/wcfsetup/install/files/lib/system/cache/runtime/UserRuntimeCache.class.php b/wcfsetup/install/files/lib/system/cache/runtime/UserRuntimeCache.class.php
index 7b5d6d7d73..8f8ee0ccc4 100644
--- a/wcfsetup/install/files/lib/system/cache/runtime/UserRuntimeCache.class.php
+++ b/wcfsetup/install/files/lib/system/cache/runtime/UserRuntimeCache.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\runtime;
 use wcf\data\user\User;
 use wcf\data\user\UserList;
diff --git a/wcfsetup/install/files/lib/system/cache/runtime/ViewableArticleRuntimeCache.class.php b/wcfsetup/install/files/lib/system/cache/runtime/ViewableArticleRuntimeCache.class.php
index fe2ac9f24b..4ccd2f1a66 100644
--- a/wcfsetup/install/files/lib/system/cache/runtime/ViewableArticleRuntimeCache.class.php
+++ b/wcfsetup/install/files/lib/system/cache/runtime/ViewableArticleRuntimeCache.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\runtime;
 use wcf\data\article\ViewableArticle;
 use wcf\data\article\ViewableArticleList;
diff --git a/wcfsetup/install/files/lib/system/cache/runtime/ViewableMediaRuntimeCache.class.php b/wcfsetup/install/files/lib/system/cache/runtime/ViewableMediaRuntimeCache.class.php
index 789c2b2604..b3b853ed47 100644
--- a/wcfsetup/install/files/lib/system/cache/runtime/ViewableMediaRuntimeCache.class.php
+++ b/wcfsetup/install/files/lib/system/cache/runtime/ViewableMediaRuntimeCache.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\runtime;
 use wcf\data\media\ViewableMedia;
 use wcf\data\media\ViewableMediaList;
diff --git a/wcfsetup/install/files/lib/system/cache/source/DiskCacheSource.class.php b/wcfsetup/install/files/lib/system/cache/source/DiskCacheSource.class.php
index 345483e05a..1611e39623 100644
--- a/wcfsetup/install/files/lib/system/cache/source/DiskCacheSource.class.php
+++ b/wcfsetup/install/files/lib/system/cache/source/DiskCacheSource.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\source;
 use wcf\system\exception\SystemException;
 use wcf\system\io\AtomicWriter;
diff --git a/wcfsetup/install/files/lib/system/cache/source/ICacheSource.class.php b/wcfsetup/install/files/lib/system/cache/source/ICacheSource.class.php
index d8fbbe7ddd..b3f3b5cf14 100644
--- a/wcfsetup/install/files/lib/system/cache/source/ICacheSource.class.php
+++ b/wcfsetup/install/files/lib/system/cache/source/ICacheSource.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\source;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/cache/source/MemcachedCacheSource.class.php b/wcfsetup/install/files/lib/system/cache/source/MemcachedCacheSource.class.php
index b103e3107f..4d630d35b7 100644
--- a/wcfsetup/install/files/lib/system/cache/source/MemcachedCacheSource.class.php
+++ b/wcfsetup/install/files/lib/system/cache/source/MemcachedCacheSource.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\source;
 use wcf\system\exception\SystemException;
 use wcf\system\Regex;
diff --git a/wcfsetup/install/files/lib/system/cache/source/RedisCacheSource.class.php b/wcfsetup/install/files/lib/system/cache/source/RedisCacheSource.class.php
index 71d318ffdd..964ac3fb0a 100644
--- a/wcfsetup/install/files/lib/system/cache/source/RedisCacheSource.class.php
+++ b/wcfsetup/install/files/lib/system/cache/source/RedisCacheSource.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cache\source;
 use wcf\system\database\Redis;
 use wcf\system\exception\SystemException;
diff --git a/wcfsetup/install/files/lib/system/captcha/CaptchaHandler.class.php b/wcfsetup/install/files/lib/system/captcha/CaptchaHandler.class.php
index cf59a5ab0d..58e0d3aefb 100644
--- a/wcfsetup/install/files/lib/system/captcha/CaptchaHandler.class.php
+++ b/wcfsetup/install/files/lib/system/captcha/CaptchaHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\captcha;
 use wcf\data\object\type\ObjectType;
 use wcf\data\object\type\ObjectTypeCache;
diff --git a/wcfsetup/install/files/lib/system/captcha/CaptchaQuestionHandler.class.php b/wcfsetup/install/files/lib/system/captcha/CaptchaQuestionHandler.class.php
index 1e1f6e2b53..7da72c811a 100644
--- a/wcfsetup/install/files/lib/system/captcha/CaptchaQuestionHandler.class.php
+++ b/wcfsetup/install/files/lib/system/captcha/CaptchaQuestionHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\captcha;
 use wcf\data\captcha\question\CaptchaQuestion;
 use wcf\system\cache\builder\CaptchaQuestionCacheBuilder;
diff --git a/wcfsetup/install/files/lib/system/captcha/ICaptchaHandler.class.php b/wcfsetup/install/files/lib/system/captcha/ICaptchaHandler.class.php
index bdfbd4eb65..c1fd335e72 100644
--- a/wcfsetup/install/files/lib/system/captcha/ICaptchaHandler.class.php
+++ b/wcfsetup/install/files/lib/system/captcha/ICaptchaHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\captcha;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/captcha/RecaptchaHandler.class.php b/wcfsetup/install/files/lib/system/captcha/RecaptchaHandler.class.php
index 11815c026e..6607cbb3ce 100644
--- a/wcfsetup/install/files/lib/system/captcha/RecaptchaHandler.class.php
+++ b/wcfsetup/install/files/lib/system/captcha/RecaptchaHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\captcha;
 use wcf\system\recaptcha\RecaptchaHandlerV2;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/system/category/AbstractCategoryType.class.php b/wcfsetup/install/files/lib/system/category/AbstractCategoryType.class.php
index 889fd52a9f..3c2faf6564 100644
--- a/wcfsetup/install/files/lib/system/category/AbstractCategoryType.class.php
+++ b/wcfsetup/install/files/lib/system/category/AbstractCategoryType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\category;
 use wcf\data\category\CategoryEditor;
 use wcf\system\database\util\PreparedStatementConditionBuilder;
diff --git a/wcfsetup/install/files/lib/system/category/ArticleCategoryType.class.php b/wcfsetup/install/files/lib/system/category/ArticleCategoryType.class.php
index 1e97cf8175..908b92a262 100644
--- a/wcfsetup/install/files/lib/system/category/ArticleCategoryType.class.php
+++ b/wcfsetup/install/files/lib/system/category/ArticleCategoryType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\category;
 use wcf\system\WCF;
 
diff --git a/wcfsetup/install/files/lib/system/category/CategoryHandler.class.php b/wcfsetup/install/files/lib/system/category/CategoryHandler.class.php
index f8ce6a1a8b..c715a248c5 100644
--- a/wcfsetup/install/files/lib/system/category/CategoryHandler.class.php
+++ b/wcfsetup/install/files/lib/system/category/CategoryHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\category;
 use wcf\data\category\Category;
 use wcf\data\object\type\ObjectType;
diff --git a/wcfsetup/install/files/lib/system/category/CategoryPermissionHandler.class.php b/wcfsetup/install/files/lib/system/category/CategoryPermissionHandler.class.php
index 339f96df4c..bcbab58872 100644
--- a/wcfsetup/install/files/lib/system/category/CategoryPermissionHandler.class.php
+++ b/wcfsetup/install/files/lib/system/category/CategoryPermissionHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\category;
 use wcf\data\category\Category;
 use wcf\data\user\User;
diff --git a/wcfsetup/install/files/lib/system/category/ICategoryType.class.php b/wcfsetup/install/files/lib/system/category/ICategoryType.class.php
index 079717425c..f7c6a24853 100644
--- a/wcfsetup/install/files/lib/system/category/ICategoryType.class.php
+++ b/wcfsetup/install/files/lib/system/category/ICategoryType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\category;
 use wcf\data\category\CategoryEditor;
 
diff --git a/wcfsetup/install/files/lib/system/category/MediaCategoryType.class.php b/wcfsetup/install/files/lib/system/category/MediaCategoryType.class.php
index f9542d6691..469cf326c1 100644
--- a/wcfsetup/install/files/lib/system/category/MediaCategoryType.class.php
+++ b/wcfsetup/install/files/lib/system/category/MediaCategoryType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\category;
 use wcf\system\WCF;
 
diff --git a/wcfsetup/install/files/lib/system/category/SmileyCategoryType.class.php b/wcfsetup/install/files/lib/system/category/SmileyCategoryType.class.php
index 149916fdb4..8119072898 100644
--- a/wcfsetup/install/files/lib/system/category/SmileyCategoryType.class.php
+++ b/wcfsetup/install/files/lib/system/category/SmileyCategoryType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\category;
 use wcf\data\category\CategoryEditor;
 use wcf\system\cache\builder\SmileyCacheBuilder;
diff --git a/wcfsetup/install/files/lib/system/category/TrophyCategoryType.class.php b/wcfsetup/install/files/lib/system/category/TrophyCategoryType.class.php
index a23a72b445..d2e451e1a6 100644
--- a/wcfsetup/install/files/lib/system/category/TrophyCategoryType.class.php
+++ b/wcfsetup/install/files/lib/system/category/TrophyCategoryType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\category;
 use wcf\data\category\CategoryEditor;
 use wcf\data\user\trophy\UserTrophyAction;
diff --git a/wcfsetup/install/files/lib/system/cli/DatabaseCLICommandHistory.class.php b/wcfsetup/install/files/lib/system/cli/DatabaseCLICommandHistory.class.php
index 71061d9323..3f0f073b37 100644
--- a/wcfsetup/install/files/lib/system/cli/DatabaseCLICommandHistory.class.php
+++ b/wcfsetup/install/files/lib/system/cli/DatabaseCLICommandHistory.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cli;
 use phpline\console\history\MemoryHistory;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/system/cli/command/CLICommandHandler.class.php b/wcfsetup/install/files/lib/system/cli/command/CLICommandHandler.class.php
index 8b9c4b4728..c94ee6e889 100644
--- a/wcfsetup/install/files/lib/system/cli/command/CLICommandHandler.class.php
+++ b/wcfsetup/install/files/lib/system/cli/command/CLICommandHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cli\command;
 use phpline\internal\Log;
 use wcf\system\exception\IllegalLinkException;
diff --git a/wcfsetup/install/files/lib/system/cli/command/CLICommandNameCompleter.class.php b/wcfsetup/install/files/lib/system/cli/command/CLICommandNameCompleter.class.php
index f8ba63dc67..9abc697b59 100644
--- a/wcfsetup/install/files/lib/system/cli/command/CLICommandNameCompleter.class.php
+++ b/wcfsetup/install/files/lib/system/cli/command/CLICommandNameCompleter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cli\command;
 use phpline\console\completer\Completer;
 
diff --git a/wcfsetup/install/files/lib/system/cli/command/CommandsCLICommand.class.php b/wcfsetup/install/files/lib/system/cli/command/CommandsCLICommand.class.php
index 9401f0807f..e880c5dc97 100644
--- a/wcfsetup/install/files/lib/system/cli/command/CommandsCLICommand.class.php
+++ b/wcfsetup/install/files/lib/system/cli/command/CommandsCLICommand.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cli\command;
 use wcf\system\CLIWCF;
 use wcf\util\CLIUtil;
diff --git a/wcfsetup/install/files/lib/system/cli/command/CronjobCLICommand.class.php b/wcfsetup/install/files/lib/system/cli/command/CronjobCLICommand.class.php
index 15ab5067ea..a4af9b2a28 100644
--- a/wcfsetup/install/files/lib/system/cli/command/CronjobCLICommand.class.php
+++ b/wcfsetup/install/files/lib/system/cli/command/CronjobCLICommand.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cli\command;
 use wcf\data\user\User;
 use wcf\system\cronjob\CronjobScheduler;
diff --git a/wcfsetup/install/files/lib/system/cli/command/ExitCLICommand.class.php b/wcfsetup/install/files/lib/system/cli/command/ExitCLICommand.class.php
index 2e01593df2..d32219411a 100644
--- a/wcfsetup/install/files/lib/system/cli/command/ExitCLICommand.class.php
+++ b/wcfsetup/install/files/lib/system/cli/command/ExitCLICommand.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cli\command;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/cli/command/HelpCLICommand.class.php b/wcfsetup/install/files/lib/system/cli/command/HelpCLICommand.class.php
index 200618599a..72e86899fb 100644
--- a/wcfsetup/install/files/lib/system/cli/command/HelpCLICommand.class.php
+++ b/wcfsetup/install/files/lib/system/cli/command/HelpCLICommand.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cli\command;
 use wcf\system\CLIWCF;
 use Zend\Console\Exception\RuntimeException as ArgvException;
diff --git a/wcfsetup/install/files/lib/system/cli/command/IArgumentedCLICommand.class.php b/wcfsetup/install/files/lib/system/cli/command/IArgumentedCLICommand.class.php
index 0cffcf1bd2..5ddec79034 100644
--- a/wcfsetup/install/files/lib/system/cli/command/IArgumentedCLICommand.class.php
+++ b/wcfsetup/install/files/lib/system/cli/command/IArgumentedCLICommand.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cli\command;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/cli/command/ICLICommand.class.php b/wcfsetup/install/files/lib/system/cli/command/ICLICommand.class.php
index cedf38080d..53fe2637c8 100644
--- a/wcfsetup/install/files/lib/system/cli/command/ICLICommand.class.php
+++ b/wcfsetup/install/files/lib/system/cli/command/ICLICommand.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cli\command;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/cli/command/ImportCLICommand.class.php b/wcfsetup/install/files/lib/system/cli/command/ImportCLICommand.class.php
index 4c09a02d79..0dceafb1fb 100644
--- a/wcfsetup/install/files/lib/system/cli/command/ImportCLICommand.class.php
+++ b/wcfsetup/install/files/lib/system/cli/command/ImportCLICommand.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cli\command;
 use wcf\data\object\type\ObjectType;
 use wcf\data\object\type\ObjectTypeCache;
diff --git a/wcfsetup/install/files/lib/system/cli/command/PackageCLICommand.class.php b/wcfsetup/install/files/lib/system/cli/command/PackageCLICommand.class.php
index 2e52a83eaf..4a6e6a2383 100644
--- a/wcfsetup/install/files/lib/system/cli/command/PackageCLICommand.class.php
+++ b/wcfsetup/install/files/lib/system/cli/command/PackageCLICommand.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cli\command;
 use phpline\internal\Log;
 use wcf\data\package\installation\queue\PackageInstallationQueue;
diff --git a/wcfsetup/install/files/lib/system/cli/command/WorkerCLICommand.class.php b/wcfsetup/install/files/lib/system/cli/command/WorkerCLICommand.class.php
index 00903a52b6..847d6d713f 100644
--- a/wcfsetup/install/files/lib/system/cli/command/WorkerCLICommand.class.php
+++ b/wcfsetup/install/files/lib/system/cli/command/WorkerCLICommand.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cli\command;
 use phpline\internal\Log;
 use wcf\system\worker\IWorker;
diff --git a/wcfsetup/install/files/lib/system/clipboard/ClipboardEditorItem.class.php b/wcfsetup/install/files/lib/system/clipboard/ClipboardEditorItem.class.php
index 90d7ada464..4f0e5c3d57 100644
--- a/wcfsetup/install/files/lib/system/clipboard/ClipboardEditorItem.class.php
+++ b/wcfsetup/install/files/lib/system/clipboard/ClipboardEditorItem.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\clipboard;
 use wcf\system\exception\SystemException;
 
diff --git a/wcfsetup/install/files/lib/system/clipboard/ClipboardHandler.class.php b/wcfsetup/install/files/lib/system/clipboard/ClipboardHandler.class.php
index a3a9b52cfe..c77e4e616f 100644
--- a/wcfsetup/install/files/lib/system/clipboard/ClipboardHandler.class.php
+++ b/wcfsetup/install/files/lib/system/clipboard/ClipboardHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\clipboard;
 use wcf\data\object\type\ObjectType;
 use wcf\data\object\type\ObjectTypeCache;
diff --git a/wcfsetup/install/files/lib/system/clipboard/action/AbstractClipboardAction.class.php b/wcfsetup/install/files/lib/system/clipboard/action/AbstractClipboardAction.class.php
index 1aa4c3a962..68d994d3d2 100644
--- a/wcfsetup/install/files/lib/system/clipboard/action/AbstractClipboardAction.class.php
+++ b/wcfsetup/install/files/lib/system/clipboard/action/AbstractClipboardAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\clipboard\action;
 use wcf\data\clipboard\action\ClipboardAction;
 use wcf\data\DatabaseObject;
diff --git a/wcfsetup/install/files/lib/system/clipboard/action/ArticleClipboardAction.class.php b/wcfsetup/install/files/lib/system/clipboard/action/ArticleClipboardAction.class.php
index ccb184582e..1518d54776 100644
--- a/wcfsetup/install/files/lib/system/clipboard/action/ArticleClipboardAction.class.php
+++ b/wcfsetup/install/files/lib/system/clipboard/action/ArticleClipboardAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\clipboard\action;
 use wcf\data\article\Article;
 use wcf\data\article\ArticleAction;
diff --git a/wcfsetup/install/files/lib/system/clipboard/action/IClipboardAction.class.php b/wcfsetup/install/files/lib/system/clipboard/action/IClipboardAction.class.php
index 417e229432..7ba99c3d70 100644
--- a/wcfsetup/install/files/lib/system/clipboard/action/IClipboardAction.class.php
+++ b/wcfsetup/install/files/lib/system/clipboard/action/IClipboardAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\clipboard\action;
 use wcf\data\clipboard\action\ClipboardAction;
 use wcf\data\DatabaseObject;
diff --git a/wcfsetup/install/files/lib/system/clipboard/action/MediaClipboardAction.class.php b/wcfsetup/install/files/lib/system/clipboard/action/MediaClipboardAction.class.php
index b2ceeda803..66312c8c8a 100644
--- a/wcfsetup/install/files/lib/system/clipboard/action/MediaClipboardAction.class.php
+++ b/wcfsetup/install/files/lib/system/clipboard/action/MediaClipboardAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\clipboard\action;
 use wcf\data\clipboard\action\ClipboardAction;
 use wcf\data\media\MediaAction;
diff --git a/wcfsetup/install/files/lib/system/clipboard/action/TagClipboardAction.class.php b/wcfsetup/install/files/lib/system/clipboard/action/TagClipboardAction.class.php
index 807f34f58f..f7959add64 100644
--- a/wcfsetup/install/files/lib/system/clipboard/action/TagClipboardAction.class.php
+++ b/wcfsetup/install/files/lib/system/clipboard/action/TagClipboardAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\clipboard\action;
 use wcf\data\clipboard\action\ClipboardAction;
 use wcf\data\tag\TagAction;
diff --git a/wcfsetup/install/files/lib/system/clipboard/action/UserClipboardAction.class.php b/wcfsetup/install/files/lib/system/clipboard/action/UserClipboardAction.class.php
index 09f7d6a67f..e943e581d0 100644
--- a/wcfsetup/install/files/lib/system/clipboard/action/UserClipboardAction.class.php
+++ b/wcfsetup/install/files/lib/system/clipboard/action/UserClipboardAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\clipboard\action;
 use wcf\data\clipboard\action\ClipboardAction;
 use wcf\data\user\group\UserGroup;
diff --git a/wcfsetup/install/files/lib/system/clipboard/action/UserContentClipboardAction.class.php b/wcfsetup/install/files/lib/system/clipboard/action/UserContentClipboardAction.class.php
index 5e9651493a..8688171812 100644
--- a/wcfsetup/install/files/lib/system/clipboard/action/UserContentClipboardAction.class.php
+++ b/wcfsetup/install/files/lib/system/clipboard/action/UserContentClipboardAction.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\clipboard\action;
 use wcf\data\clipboard\action\ClipboardAction;
 use wcf\data\user\UserContentAction;
diff --git a/wcfsetup/install/files/lib/system/comment/CommentDataHandler.class.php b/wcfsetup/install/files/lib/system/comment/CommentDataHandler.class.php
index 3f119d7e4f..1f1d685ab8 100644
--- a/wcfsetup/install/files/lib/system/comment/CommentDataHandler.class.php
+++ b/wcfsetup/install/files/lib/system/comment/CommentDataHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\comment;
 use wcf\system\cache\runtime\CommentRuntimeCache;
 use wcf\system\cache\runtime\UserProfileRuntimeCache;
diff --git a/wcfsetup/install/files/lib/system/comment/CommentHandler.class.php b/wcfsetup/install/files/lib/system/comment/CommentHandler.class.php
index 73ef229146..402738fdf0 100644
--- a/wcfsetup/install/files/lib/system/comment/CommentHandler.class.php
+++ b/wcfsetup/install/files/lib/system/comment/CommentHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\comment;
 use wcf\data\comment\response\CommentResponseList;
 use wcf\data\comment\CommentEditor;
diff --git a/wcfsetup/install/files/lib/system/comment/manager/AbstractCommentManager.class.php b/wcfsetup/install/files/lib/system/comment/manager/AbstractCommentManager.class.php
index 223ab30a72..5a89e506aa 100644
--- a/wcfsetup/install/files/lib/system/comment/manager/AbstractCommentManager.class.php
+++ b/wcfsetup/install/files/lib/system/comment/manager/AbstractCommentManager.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\comment\manager;
 use wcf\data\comment\response\CommentResponse;
 use wcf\data\comment\Comment;
diff --git a/wcfsetup/install/files/lib/system/comment/manager/ArticleCommentManager.class.php b/wcfsetup/install/files/lib/system/comment/manager/ArticleCommentManager.class.php
index 482fd3e9f4..e546cd9d0c 100644
--- a/wcfsetup/install/files/lib/system/comment/manager/ArticleCommentManager.class.php
+++ b/wcfsetup/install/files/lib/system/comment/manager/ArticleCommentManager.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\comment\manager;
 use wcf\data\article\content\ArticleContent;
 use wcf\data\article\content\ArticleContentList;
diff --git a/wcfsetup/install/files/lib/system/comment/manager/ICommentManager.class.php b/wcfsetup/install/files/lib/system/comment/manager/ICommentManager.class.php
index 004369bd01..01b06521f1 100644
--- a/wcfsetup/install/files/lib/system/comment/manager/ICommentManager.class.php
+++ b/wcfsetup/install/files/lib/system/comment/manager/ICommentManager.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\comment\manager;
 use wcf\data\comment\response\CommentResponse;
 use wcf\data\comment\Comment;
diff --git a/wcfsetup/install/files/lib/system/comment/manager/ModerationQueueCommentManager.class.php b/wcfsetup/install/files/lib/system/comment/manager/ModerationQueueCommentManager.class.php
index 0f3f7a4380..590785bc0e 100644
--- a/wcfsetup/install/files/lib/system/comment/manager/ModerationQueueCommentManager.class.php
+++ b/wcfsetup/install/files/lib/system/comment/manager/ModerationQueueCommentManager.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\comment\manager;
 use wcf\data\moderation\queue\ModerationQueue;
 use wcf\data\moderation\queue\ModerationQueueEditor;
diff --git a/wcfsetup/install/files/lib/system/comment/manager/PageCommentManager.class.php b/wcfsetup/install/files/lib/system/comment/manager/PageCommentManager.class.php
index 29e369b458..d90102aab5 100644
--- a/wcfsetup/install/files/lib/system/comment/manager/PageCommentManager.class.php
+++ b/wcfsetup/install/files/lib/system/comment/manager/PageCommentManager.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\comment\manager;
 use wcf\data\comment\response\CommentResponseList;
 use wcf\data\comment\CommentList;
diff --git a/wcfsetup/install/files/lib/system/comment/manager/UserProfileCommentManager.class.php b/wcfsetup/install/files/lib/system/comment/manager/UserProfileCommentManager.class.php
index 7377f38c36..8389b80ba3 100644
--- a/wcfsetup/install/files/lib/system/comment/manager/UserProfileCommentManager.class.php
+++ b/wcfsetup/install/files/lib/system/comment/manager/UserProfileCommentManager.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\comment\manager;
 use wcf\data\comment\response\CommentResponse;
 use wcf\data\comment\response\CommentResponseList;
diff --git a/wcfsetup/install/files/lib/system/condition/AbstractCheckboxCondition.class.php b/wcfsetup/install/files/lib/system/condition/AbstractCheckboxCondition.class.php
index 7758810221..74ba41c276 100644
--- a/wcfsetup/install/files/lib/system/condition/AbstractCheckboxCondition.class.php
+++ b/wcfsetup/install/files/lib/system/condition/AbstractCheckboxCondition.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\condition;
 use wcf\data\condition\Condition;
 use wcf\data\DatabaseObject;
diff --git a/wcfsetup/install/files/lib/system/condition/AbstractCondition.class.php b/wcfsetup/install/files/lib/system/condition/AbstractCondition.class.php
index 531d87c0a9..d51d43b836 100644
--- a/wcfsetup/install/files/lib/system/condition/AbstractCondition.class.php
+++ b/wcfsetup/install/files/lib/system/condition/AbstractCondition.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\condition;
 use wcf\data\object\type\AbstractObjectTypeProcessor;
 
diff --git a/wcfsetup/install/files/lib/system/condition/AbstractIntegerCondition.class.php b/wcfsetup/install/files/lib/system/condition/AbstractIntegerCondition.class.php
index 30047d9f1c..cfe8855e2f 100644
--- a/wcfsetup/install/files/lib/system/condition/AbstractIntegerCondition.class.php
+++ b/wcfsetup/install/files/lib/system/condition/AbstractIntegerCondition.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\condition;
 use wcf\data\condition\Condition;
 use wcf\system\exception\UserInputException;
diff --git a/wcfsetup/install/files/lib/system/condition/AbstractMultiCategoryCondition.class.php b/wcfsetup/install/files/lib/system/condition/AbstractMultiCategoryCondition.class.php
index da3a7e1dc8..d8df5c2067 100644
--- a/wcfsetup/install/files/lib/system/condition/AbstractMultiCategoryCondition.class.php
+++ b/wcfsetup/install/files/lib/system/condition/AbstractMultiCategoryCondition.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\condition;
 use wcf\data\category\CategoryNode;
 use wcf\data\category\CategoryNodeTree;
diff --git a/wcfsetup/install/files/lib/system/condition/AbstractMultiSelectCondition.class.php b/wcfsetup/install/files/lib/system/condition/AbstractMultiSelectCondition.class.php
index 5212713fef..cf7ad2ecea 100644
--- a/wcfsetup/install/files/lib/system/condition/AbstractMultiSelectCondition.class.php
+++ b/wcfsetup/install/files/lib/system/condition/AbstractMultiSelectCondition.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\condition;
 use wcf\system\exception\UserInputException;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/system/condition/AbstractMultipleFieldsCondition.class.php b/wcfsetup/install/files/lib/system/condition/AbstractMultipleFieldsCondition.class.php
index 28a42d07a6..a62b385d5b 100644
--- a/wcfsetup/install/files/lib/system/condition/AbstractMultipleFieldsCondition.class.php
+++ b/wcfsetup/install/files/lib/system/condition/AbstractMultipleFieldsCondition.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\condition;
 use wcf\system\WCF;
 
diff --git a/wcfsetup/install/files/lib/system/condition/AbstractObjectTextPropertyCondition.class.php b/wcfsetup/install/files/lib/system/condition/AbstractObjectTextPropertyCondition.class.php
index 40ad3617ee..76b71a2635 100644
--- a/wcfsetup/install/files/lib/system/condition/AbstractObjectTextPropertyCondition.class.php
+++ b/wcfsetup/install/files/lib/system/condition/AbstractObjectTextPropertyCondition.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\condition;
 use wcf\data\condition\Condition;
 use wcf\data\DatabaseObject;
diff --git a/wcfsetup/install/files/lib/system/condition/AbstractSelectCondition.class.php b/wcfsetup/install/files/lib/system/condition/AbstractSelectCondition.class.php
index ca678f7384..d04eb0c8a6 100644
--- a/wcfsetup/install/files/lib/system/condition/AbstractSelectCondition.class.php
+++ b/wcfsetup/install/files/lib/system/condition/AbstractSelectCondition.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\condition;
 use wcf\data\condition\Condition;
 use wcf\system\exception\UserInputException;
diff --git a/wcfsetup/install/files/lib/system/condition/AbstractSingleFieldCondition.class.php b/wcfsetup/install/files/lib/system/condition/AbstractSingleFieldCondition.class.php
index af4da144da..11099f1f9c 100644
--- a/wcfsetup/install/files/lib/system/condition/AbstractSingleFieldCondition.class.php
+++ b/wcfsetup/install/files/lib/system/condition/AbstractSingleFieldCondition.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\condition;
 use wcf\system\WCF;
 
diff --git a/wcfsetup/install/files/lib/system/condition/AbstractTextCondition.class.php b/wcfsetup/install/files/lib/system/condition/AbstractTextCondition.class.php
index 809b83e80b..e09d5ce74d 100644
--- a/wcfsetup/install/files/lib/system/condition/AbstractTextCondition.class.php
+++ b/wcfsetup/install/files/lib/system/condition/AbstractTextCondition.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\condition;
 use wcf\data\condition\Condition;
 use wcf\util\StringUtil;
diff --git a/wcfsetup/install/files/lib/system/condition/AbstractTimestampCondition.class.php b/wcfsetup/install/files/lib/system/condition/AbstractTimestampCondition.class.php
index 718552342e..b36ba221f8 100644
--- a/wcfsetup/install/files/lib/system/condition/AbstractTimestampCondition.class.php
+++ b/wcfsetup/install/files/lib/system/condition/AbstractTimestampCondition.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\condition;
 use wcf\data\condition\Condition;
 use wcf\data\DatabaseObject;
diff --git a/wcfsetup/install/files/lib/system/condition/ConditionHandler.class.php b/wcfsetup/install/files/lib/system/condition/ConditionHandler.class.php
index b513cfce21..88b7cee50b 100644
--- a/wcfsetup/install/files/lib/system/condition/ConditionHandler.class.php
+++ b/wcfsetup/install/files/lib/system/condition/ConditionHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\condition;
 use wcf\data\condition\Condition;
 use wcf\data\condition\ConditionAction;
diff --git a/wcfsetup/install/files/lib/system/condition/DaysOfWeekCondition.class.php b/wcfsetup/install/files/lib/system/condition/DaysOfWeekCondition.class.php
index 58db1eb3f6..5733c3b49e 100644
--- a/wcfsetup/install/files/lib/system/condition/DaysOfWeekCondition.class.php
+++ b/wcfsetup/install/files/lib/system/condition/DaysOfWeekCondition.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\condition;
 use wcf\data\condition\Condition;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/system/condition/ICondition.class.php b/wcfsetup/install/files/lib/system/condition/ICondition.class.php
index ce81299feb..b4004a1a26 100644
--- a/wcfsetup/install/files/lib/system/condition/ICondition.class.php
+++ b/wcfsetup/install/files/lib/system/condition/ICondition.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\condition;
 use wcf\data\condition\Condition;
 use wcf\data\IDatabaseObjectProcessor;
diff --git a/wcfsetup/install/files/lib/system/condition/IContentCondition.class.php b/wcfsetup/install/files/lib/system/condition/IContentCondition.class.php
index cf070bb455..16c3c6ca68 100644
--- a/wcfsetup/install/files/lib/system/condition/IContentCondition.class.php
+++ b/wcfsetup/install/files/lib/system/condition/IContentCondition.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\condition;
 use wcf\data\condition\Condition;
 
diff --git a/wcfsetup/install/files/lib/system/condition/IObjectCondition.class.php b/wcfsetup/install/files/lib/system/condition/IObjectCondition.class.php
index 94d90115e4..7bdc1d73fd 100644
--- a/wcfsetup/install/files/lib/system/condition/IObjectCondition.class.php
+++ b/wcfsetup/install/files/lib/system/condition/IObjectCondition.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\condition;
 use wcf\data\DatabaseObject;
 
diff --git a/wcfsetup/install/files/lib/system/condition/IObjectListCondition.class.php b/wcfsetup/install/files/lib/system/condition/IObjectListCondition.class.php
index 2dbb8fe52e..66ad014836 100644
--- a/wcfsetup/install/files/lib/system/condition/IObjectListCondition.class.php
+++ b/wcfsetup/install/files/lib/system/condition/IObjectListCondition.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\condition;
 use wcf\data\DatabaseObjectList;
 
diff --git a/wcfsetup/install/files/lib/system/condition/IUserCondition.class.php b/wcfsetup/install/files/lib/system/condition/IUserCondition.class.php
index a1328f29cb..5ee794628c 100644
--- a/wcfsetup/install/files/lib/system/condition/IUserCondition.class.php
+++ b/wcfsetup/install/files/lib/system/condition/IUserCondition.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\condition;
 use wcf\data\condition\Condition;
 use wcf\data\user\User;
diff --git a/wcfsetup/install/files/lib/system/condition/MultiPageControllerCondition.class.php b/wcfsetup/install/files/lib/system/condition/MultiPageControllerCondition.class.php
index 8a6bd4fec8..0e6bd2f2d3 100644
--- a/wcfsetup/install/files/lib/system/condition/MultiPageControllerCondition.class.php
+++ b/wcfsetup/install/files/lib/system/condition/MultiPageControllerCondition.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\condition;
 use wcf\data\condition\Condition;
 
diff --git a/wcfsetup/install/files/lib/system/condition/TObjectListUserCondition.class.php b/wcfsetup/install/files/lib/system/condition/TObjectListUserCondition.class.php
index 8e97b27ed7..dfa1b37339 100644
--- a/wcfsetup/install/files/lib/system/condition/TObjectListUserCondition.class.php
+++ b/wcfsetup/install/files/lib/system/condition/TObjectListUserCondition.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\condition;
 use wcf\data\condition\Condition;
 use wcf\data\user\UserList;
diff --git a/wcfsetup/install/files/lib/system/condition/TObjectUserCondition.class.php b/wcfsetup/install/files/lib/system/condition/TObjectUserCondition.class.php
index 331f54837e..bdc2e1b9fd 100644
--- a/wcfsetup/install/files/lib/system/condition/TObjectUserCondition.class.php
+++ b/wcfsetup/install/files/lib/system/condition/TObjectUserCondition.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\condition;
 use wcf\data\condition\Condition;
 use wcf\data\user\User;
diff --git a/wcfsetup/install/files/lib/system/condition/TimeCondition.class.php b/wcfsetup/install/files/lib/system/condition/TimeCondition.class.php
index 58376d3948..3d37a3d334 100644
--- a/wcfsetup/install/files/lib/system/condition/TimeCondition.class.php
+++ b/wcfsetup/install/files/lib/system/condition/TimeCondition.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\condition;
 use wcf\data\condition\Condition;
 use wcf\system\exception\UserInputException;
diff --git a/wcfsetup/install/files/lib/system/condition/UserAvatarCondition.class.php b/wcfsetup/install/files/lib/system/condition/UserAvatarCondition.class.php
index a2c129fd9c..b8b59f4bd8 100644
--- a/wcfsetup/install/files/lib/system/condition/UserAvatarCondition.class.php
+++ b/wcfsetup/install/files/lib/system/condition/UserAvatarCondition.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\condition;
 use wcf\data\condition\Condition;
 use wcf\data\user\User;
diff --git a/wcfsetup/install/files/lib/system/condition/UserBirthdayCondition.class.php b/wcfsetup/install/files/lib/system/condition/UserBirthdayCondition.class.php
index b9a81b9bc8..3847bc644a 100644
--- a/wcfsetup/install/files/lib/system/condition/UserBirthdayCondition.class.php
+++ b/wcfsetup/install/files/lib/system/condition/UserBirthdayCondition.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\condition;
 use wcf\data\condition\Condition;
 use wcf\system\user\UserBirthdayCache;
diff --git a/wcfsetup/install/files/lib/system/condition/UserEmailCondition.class.php b/wcfsetup/install/files/lib/system/condition/UserEmailCondition.class.php
index 19c61407f1..305109a8eb 100644
--- a/wcfsetup/install/files/lib/system/condition/UserEmailCondition.class.php
+++ b/wcfsetup/install/files/lib/system/condition/UserEmailCondition.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\condition;
 use wcf\data\condition\Condition;
 use wcf\data\user\User;
diff --git a/wcfsetup/install/files/lib/system/condition/UserGroupCondition.class.php b/wcfsetup/install/files/lib/system/condition/UserGroupCondition.class.php
index 8851120163..5f391e8a48 100644
--- a/wcfsetup/install/files/lib/system/condition/UserGroupCondition.class.php
+++ b/wcfsetup/install/files/lib/system/condition/UserGroupCondition.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\condition;
 use wcf\data\condition\Condition;
 use wcf\data\user\group\UserGroup;
diff --git a/wcfsetup/install/files/lib/system/condition/UserIntegerPropertyCondition.class.php b/wcfsetup/install/files/lib/system/condition/UserIntegerPropertyCondition.class.php
index 16db516589..b89c642fef 100644
--- a/wcfsetup/install/files/lib/system/condition/UserIntegerPropertyCondition.class.php
+++ b/wcfsetup/install/files/lib/system/condition/UserIntegerPropertyCondition.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\condition;
 use wcf\data\condition\Condition;
 use wcf\data\user\User;
diff --git a/wcfsetup/install/files/lib/system/condition/UserLanguageCondition.class.php b/wcfsetup/install/files/lib/system/condition/UserLanguageCondition.class.php
index f59a74fda7..f81192b16e 100644
--- a/wcfsetup/install/files/lib/system/condition/UserLanguageCondition.class.php
+++ b/wcfsetup/install/files/lib/system/condition/UserLanguageCondition.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\condition;
 use wcf\data\condition\Condition;
 use wcf\data\user\User;
diff --git a/wcfsetup/install/files/lib/system/condition/UserMobileBrowserCondition.class.php b/wcfsetup/install/files/lib/system/condition/UserMobileBrowserCondition.class.php
index e9a51d1a76..431e4a52ae 100644
--- a/wcfsetup/install/files/lib/system/condition/UserMobileBrowserCondition.class.php
+++ b/wcfsetup/install/files/lib/system/condition/UserMobileBrowserCondition.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\condition;
 use wcf\data\condition\Condition;
 use wcf\system\exception\UserInputException;
diff --git a/wcfsetup/install/files/lib/system/condition/UserOptionsCondition.class.php b/wcfsetup/install/files/lib/system/condition/UserOptionsCondition.class.php
index 67b18e84a3..a9de9d5ffb 100644
--- a/wcfsetup/install/files/lib/system/condition/UserOptionsCondition.class.php
+++ b/wcfsetup/install/files/lib/system/condition/UserOptionsCondition.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\condition;
 use wcf\data\condition\Condition;
 use wcf\data\user\User;
diff --git a/wcfsetup/install/files/lib/system/condition/UserRegistrationDateCondition.class.php b/wcfsetup/install/files/lib/system/condition/UserRegistrationDateCondition.class.php
index 3af97ae097..ac85ea71d6 100644
--- a/wcfsetup/install/files/lib/system/condition/UserRegistrationDateCondition.class.php
+++ b/wcfsetup/install/files/lib/system/condition/UserRegistrationDateCondition.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\condition;
 use wcf\data\condition\Condition;
 use wcf\data\user\User;
diff --git a/wcfsetup/install/files/lib/system/condition/UserRegistrationDateIntervalCondition.class.php b/wcfsetup/install/files/lib/system/condition/UserRegistrationDateIntervalCondition.class.php
index ed0977b743..1cc188c387 100644
--- a/wcfsetup/install/files/lib/system/condition/UserRegistrationDateIntervalCondition.class.php
+++ b/wcfsetup/install/files/lib/system/condition/UserRegistrationDateIntervalCondition.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\condition;
 use wcf\data\condition\Condition;
 use wcf\data\user\User;
diff --git a/wcfsetup/install/files/lib/system/condition/UserStateCondition.class.php b/wcfsetup/install/files/lib/system/condition/UserStateCondition.class.php
index 1159b15325..2cd2691b99 100644
--- a/wcfsetup/install/files/lib/system/condition/UserStateCondition.class.php
+++ b/wcfsetup/install/files/lib/system/condition/UserStateCondition.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\condition;
 use wcf\data\condition\Condition;
 use wcf\data\user\User;
diff --git a/wcfsetup/install/files/lib/system/condition/UserTimestampPropertyCondition.class.php b/wcfsetup/install/files/lib/system/condition/UserTimestampPropertyCondition.class.php
index 29c4619aae..787475cb9e 100644
--- a/wcfsetup/install/files/lib/system/condition/UserTimestampPropertyCondition.class.php
+++ b/wcfsetup/install/files/lib/system/condition/UserTimestampPropertyCondition.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\condition;
 use wcf\data\condition\Condition;
 use wcf\data\user\User;
diff --git a/wcfsetup/install/files/lib/system/condition/UserTrophyCondition.class.php b/wcfsetup/install/files/lib/system/condition/UserTrophyCondition.class.php
index 1d2a3b6ce3..5ecd615a81 100644
--- a/wcfsetup/install/files/lib/system/condition/UserTrophyCondition.class.php
+++ b/wcfsetup/install/files/lib/system/condition/UserTrophyCondition.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\condition;
 use wcf\data\condition\Condition;
 use wcf\data\trophy\Trophy;
diff --git a/wcfsetup/install/files/lib/system/condition/UserUsernameCondition.class.php b/wcfsetup/install/files/lib/system/condition/UserUsernameCondition.class.php
index aedc51794a..e4899b4519 100644
--- a/wcfsetup/install/files/lib/system/condition/UserUsernameCondition.class.php
+++ b/wcfsetup/install/files/lib/system/condition/UserUsernameCondition.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\condition;
 use wcf\data\condition\Condition;
 use wcf\data\user\User;
diff --git a/wcfsetup/install/files/lib/system/condition/article/ArticleCategoryCondition.class.php b/wcfsetup/install/files/lib/system/condition/article/ArticleCategoryCondition.class.php
index 6fe955289a..0c76a5fe06 100644
--- a/wcfsetup/install/files/lib/system/condition/article/ArticleCategoryCondition.class.php
+++ b/wcfsetup/install/files/lib/system/condition/article/ArticleCategoryCondition.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\condition\article;
 use wcf\data\article\ArticleList;
 use wcf\data\DatabaseObjectList;
diff --git a/wcfsetup/install/files/lib/system/condition/page/MultiPageCondition.class.php b/wcfsetup/install/files/lib/system/condition/page/MultiPageCondition.class.php
index eec7b13c61..ef352bd5ff 100644
--- a/wcfsetup/install/files/lib/system/condition/page/MultiPageCondition.class.php
+++ b/wcfsetup/install/files/lib/system/condition/page/MultiPageCondition.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\condition\page;
 use wcf\data\condition\Condition;
 use wcf\data\page\PageCache;
diff --git a/wcfsetup/install/files/lib/system/condition/user/activity/event/UserActivityEventExcludedObjectTypeCondition.class.php b/wcfsetup/install/files/lib/system/condition/user/activity/event/UserActivityEventExcludedObjectTypeCondition.class.php
index 7db43e482d..5a3a8ab3d4 100644
--- a/wcfsetup/install/files/lib/system/condition/user/activity/event/UserActivityEventExcludedObjectTypeCondition.class.php
+++ b/wcfsetup/install/files/lib/system/condition/user/activity/event/UserActivityEventExcludedObjectTypeCondition.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\condition\user\activity\event;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\data\user\activity\event\UserActivityEventList;
diff --git a/wcfsetup/install/files/lib/system/condition/user/trophy/UserTrophyExcludedTrophiesCondition.class.php b/wcfsetup/install/files/lib/system/condition/user/trophy/UserTrophyExcludedTrophiesCondition.class.php
index 9c8e493c42..bc2887ede0 100644
--- a/wcfsetup/install/files/lib/system/condition/user/trophy/UserTrophyExcludedTrophiesCondition.class.php
+++ b/wcfsetup/install/files/lib/system/condition/user/trophy/UserTrophyExcludedTrophiesCondition.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\condition\user\trophy;
 use wcf\data\trophy\TrophyCache;
 use wcf\data\user\trophy\UserTrophyList;
diff --git a/wcfsetup/install/files/lib/system/condition/user/trophy/UserTrophyExcludedTrophyCategoriesCondition.class.php b/wcfsetup/install/files/lib/system/condition/user/trophy/UserTrophyExcludedTrophyCategoriesCondition.class.php
index f04539ccc4..58207dfb2e 100644
--- a/wcfsetup/install/files/lib/system/condition/user/trophy/UserTrophyExcludedTrophyCategoriesCondition.class.php
+++ b/wcfsetup/install/files/lib/system/condition/user/trophy/UserTrophyExcludedTrophyCategoriesCondition.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\condition\user\trophy;
 use wcf\data\trophy\category\TrophyCategoryCache;
 use wcf\data\user\trophy\UserTrophyList;
diff --git a/wcfsetup/install/files/lib/system/cronjob/AbstractCronjob.class.php b/wcfsetup/install/files/lib/system/cronjob/AbstractCronjob.class.php
index 63b5e9c0c4..6f1e960ccd 100644
--- a/wcfsetup/install/files/lib/system/cronjob/AbstractCronjob.class.php
+++ b/wcfsetup/install/files/lib/system/cronjob/AbstractCronjob.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cronjob;
 use wcf\data\cronjob\Cronjob;
 use wcf\system\event\EventHandler;
diff --git a/wcfsetup/install/files/lib/system/cronjob/ArticlePublicationCronjob.class.php b/wcfsetup/install/files/lib/system/cronjob/ArticlePublicationCronjob.class.php
index b1fdb20c08..4d445e3c46 100644
--- a/wcfsetup/install/files/lib/system/cronjob/ArticlePublicationCronjob.class.php
+++ b/wcfsetup/install/files/lib/system/cronjob/ArticlePublicationCronjob.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cronjob;
 use wcf\data\article\Article;
 use wcf\data\article\ArticleAction;
diff --git a/wcfsetup/install/files/lib/system/cronjob/AssignTrophiesCronjob.class.php b/wcfsetup/install/files/lib/system/cronjob/AssignTrophiesCronjob.class.php
index 9c70872714..93031400db 100644
--- a/wcfsetup/install/files/lib/system/cronjob/AssignTrophiesCronjob.class.php
+++ b/wcfsetup/install/files/lib/system/cronjob/AssignTrophiesCronjob.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cronjob;
 use wcf\data\cronjob\Cronjob;
 use wcf\system\trophy\condition\TrophyConditionHandler;
diff --git a/wcfsetup/install/files/lib/system/cronjob/AttachmentCleanUpCronjob.class.php b/wcfsetup/install/files/lib/system/cronjob/AttachmentCleanUpCronjob.class.php
index bab8abcfb9..d2f55f5c63 100644
--- a/wcfsetup/install/files/lib/system/cronjob/AttachmentCleanUpCronjob.class.php
+++ b/wcfsetup/install/files/lib/system/cronjob/AttachmentCleanUpCronjob.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cronjob;
 use wcf\data\attachment\AttachmentEditor;
 use wcf\data\cronjob\Cronjob;
diff --git a/wcfsetup/install/files/lib/system/cronjob/BackgroundQueueCleanUpCronjob.class.php b/wcfsetup/install/files/lib/system/cronjob/BackgroundQueueCleanUpCronjob.class.php
index 2319c43c88..61ffe11b0e 100644
--- a/wcfsetup/install/files/lib/system/cronjob/BackgroundQueueCleanUpCronjob.class.php
+++ b/wcfsetup/install/files/lib/system/cronjob/BackgroundQueueCleanUpCronjob.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cronjob;
 use wcf\data\cronjob\Cronjob;
 use wcf\system\background\BackgroundQueueHandler;
diff --git a/wcfsetup/install/files/lib/system/cronjob/CronjobScheduler.class.php b/wcfsetup/install/files/lib/system/cronjob/CronjobScheduler.class.php
index e64505179f..a29eaffb28 100644
--- a/wcfsetup/install/files/lib/system/cronjob/CronjobScheduler.class.php
+++ b/wcfsetup/install/files/lib/system/cronjob/CronjobScheduler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cronjob;
 use wcf\data\cronjob\log\CronjobLogEditor;
 use wcf\data\cronjob\Cronjob;
diff --git a/wcfsetup/install/files/lib/system/cronjob/DailyCleanUpCronjob.class.php b/wcfsetup/install/files/lib/system/cronjob/DailyCleanUpCronjob.class.php
index 3cd0179e42..b0733869a7 100644
--- a/wcfsetup/install/files/lib/system/cronjob/DailyCleanUpCronjob.class.php
+++ b/wcfsetup/install/files/lib/system/cronjob/DailyCleanUpCronjob.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cronjob;
 use wcf\data\cronjob\Cronjob;
 use wcf\data\object\type\ObjectTypeCache;
diff --git a/wcfsetup/install/files/lib/system/cronjob/DailyMailNotificationCronjob.class.php b/wcfsetup/install/files/lib/system/cronjob/DailyMailNotificationCronjob.class.php
index 3c5048b5e3..b9262bfd89 100644
--- a/wcfsetup/install/files/lib/system/cronjob/DailyMailNotificationCronjob.class.php
+++ b/wcfsetup/install/files/lib/system/cronjob/DailyMailNotificationCronjob.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cronjob;
 use wcf\data\cronjob\Cronjob;
 use wcf\data\user\notification\event\UserNotificationEventList;
diff --git a/wcfsetup/install/files/lib/system/cronjob/ExpiringPaidSubscriptionUserCronjob.class.php b/wcfsetup/install/files/lib/system/cronjob/ExpiringPaidSubscriptionUserCronjob.class.php
index 6810237df7..84c49bd835 100644
--- a/wcfsetup/install/files/lib/system/cronjob/ExpiringPaidSubscriptionUserCronjob.class.php
+++ b/wcfsetup/install/files/lib/system/cronjob/ExpiringPaidSubscriptionUserCronjob.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cronjob;
 use wcf\data\cronjob\Cronjob;
 use wcf\data\paid\subscription\user\PaidSubscriptionUserEditor;
diff --git a/wcfsetup/install/files/lib/system/cronjob/GetUpdateInfoCronjob.class.php b/wcfsetup/install/files/lib/system/cronjob/GetUpdateInfoCronjob.class.php
index 6294090bcf..aaddc74023 100644
--- a/wcfsetup/install/files/lib/system/cronjob/GetUpdateInfoCronjob.class.php
+++ b/wcfsetup/install/files/lib/system/cronjob/GetUpdateInfoCronjob.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cronjob;
 use wcf\data\cronjob\Cronjob;
 use wcf\system\package\PackageUpdateDispatcher;
diff --git a/wcfsetup/install/files/lib/system/cronjob/HourlyCleanUpCronjob.class.php b/wcfsetup/install/files/lib/system/cronjob/HourlyCleanUpCronjob.class.php
index 4472f70ff3..80912d87fc 100644
--- a/wcfsetup/install/files/lib/system/cronjob/HourlyCleanUpCronjob.class.php
+++ b/wcfsetup/install/files/lib/system/cronjob/HourlyCleanUpCronjob.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cronjob;
 use wcf\data\cronjob\Cronjob;
 use wcf\data\paid\subscription\user\PaidSubscriptionUserAction;
diff --git a/wcfsetup/install/files/lib/system/cronjob/ICronjob.class.php b/wcfsetup/install/files/lib/system/cronjob/ICronjob.class.php
index b1843ad551..4ceb9c016b 100644
--- a/wcfsetup/install/files/lib/system/cronjob/ICronjob.class.php
+++ b/wcfsetup/install/files/lib/system/cronjob/ICronjob.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cronjob;
 use wcf\data\cronjob\Cronjob;
 
diff --git a/wcfsetup/install/files/lib/system/cronjob/LastActivityCronjob.class.php b/wcfsetup/install/files/lib/system/cronjob/LastActivityCronjob.class.php
index 41f337853f..6abc17be54 100644
--- a/wcfsetup/install/files/lib/system/cronjob/LastActivityCronjob.class.php
+++ b/wcfsetup/install/files/lib/system/cronjob/LastActivityCronjob.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cronjob;
 use wcf\data\cronjob\Cronjob;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/system/cronjob/ModerationQueueCronjob.class.php b/wcfsetup/install/files/lib/system/cronjob/ModerationQueueCronjob.class.php
index e97c84efb7..3f73f20544 100644
--- a/wcfsetup/install/files/lib/system/cronjob/ModerationQueueCronjob.class.php
+++ b/wcfsetup/install/files/lib/system/cronjob/ModerationQueueCronjob.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cronjob;
 use wcf\data\cronjob\Cronjob;
 use wcf\data\moderation\queue\ModerationQueue;
diff --git a/wcfsetup/install/files/lib/system/cronjob/RebuildSitemapCronjob.class.php b/wcfsetup/install/files/lib/system/cronjob/RebuildSitemapCronjob.class.php
index 1bb8a65f4f..d2a6ee1888 100755
--- a/wcfsetup/install/files/lib/system/cronjob/RebuildSitemapCronjob.class.php
+++ b/wcfsetup/install/files/lib/system/cronjob/RebuildSitemapCronjob.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cronjob;
 use wcf\data\cronjob\Cronjob;
 use wcf\system\worker\SitemapRebuildWorker;
diff --git a/wcfsetup/install/files/lib/system/cronjob/RefreshSearchRobotsCronjob.class.php b/wcfsetup/install/files/lib/system/cronjob/RefreshSearchRobotsCronjob.class.php
index a2751c22d4..a151273feb 100644
--- a/wcfsetup/install/files/lib/system/cronjob/RefreshSearchRobotsCronjob.class.php
+++ b/wcfsetup/install/files/lib/system/cronjob/RefreshSearchRobotsCronjob.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cronjob;
 use wcf\data\cronjob\Cronjob;
 use wcf\system\cache\builder\SpiderCacheBuilder;
diff --git a/wcfsetup/install/files/lib/system/cronjob/SessionCleanUpCronjob.class.php b/wcfsetup/install/files/lib/system/cronjob/SessionCleanUpCronjob.class.php
index bb2681411d..eafb4a1f5f 100644
--- a/wcfsetup/install/files/lib/system/cronjob/SessionCleanUpCronjob.class.php
+++ b/wcfsetup/install/files/lib/system/cronjob/SessionCleanUpCronjob.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cronjob;
 use wcf\data\acp\session\virtual\ACPSessionVirtualEditor;
 use wcf\data\acp\session\ACPSessionEditor;
diff --git a/wcfsetup/install/files/lib/system/cronjob/StatDailyBuilderCronjob.class.php b/wcfsetup/install/files/lib/system/cronjob/StatDailyBuilderCronjob.class.php
index 5158a4963e..5e50d5d3c6 100644
--- a/wcfsetup/install/files/lib/system/cronjob/StatDailyBuilderCronjob.class.php
+++ b/wcfsetup/install/files/lib/system/cronjob/StatDailyBuilderCronjob.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cronjob;
 use wcf\data\cronjob\Cronjob;
 use wcf\data\object\type\ObjectTypeCache;
diff --git a/wcfsetup/install/files/lib/system/cronjob/UserBanCronjob.class.php b/wcfsetup/install/files/lib/system/cronjob/UserBanCronjob.class.php
index 0b82ddf242..fa954b4157 100644
--- a/wcfsetup/install/files/lib/system/cronjob/UserBanCronjob.class.php
+++ b/wcfsetup/install/files/lib/system/cronjob/UserBanCronjob.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cronjob;
 use wcf\data\cronjob\Cronjob;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/system/cronjob/UserGroupAssignmentCronjob.class.php b/wcfsetup/install/files/lib/system/cronjob/UserGroupAssignmentCronjob.class.php
index 237fdc8fa2..9f70578f80 100644
--- a/wcfsetup/install/files/lib/system/cronjob/UserGroupAssignmentCronjob.class.php
+++ b/wcfsetup/install/files/lib/system/cronjob/UserGroupAssignmentCronjob.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cronjob;
 use wcf\data\cronjob\Cronjob;
 use wcf\data\user\UserAction;
diff --git a/wcfsetup/install/files/lib/system/cronjob/UserQuitCronjob.class.php b/wcfsetup/install/files/lib/system/cronjob/UserQuitCronjob.class.php
index de032ae182..d4866bfccb 100644
--- a/wcfsetup/install/files/lib/system/cronjob/UserQuitCronjob.class.php
+++ b/wcfsetup/install/files/lib/system/cronjob/UserQuitCronjob.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\cronjob;
 use wcf\data\cronjob\Cronjob;
 use wcf\data\user\UserAction;
diff --git a/wcfsetup/install/files/lib/system/database/Database.class.php b/wcfsetup/install/files/lib/system/database/Database.class.php
index 8cf312e901..ae412051bc 100644
--- a/wcfsetup/install/files/lib/system/database/Database.class.php
+++ b/wcfsetup/install/files/lib/system/database/Database.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\database;
 use wcf\system\benchmark\Benchmark;
 use wcf\system\database\editor\DatabaseEditor;
diff --git a/wcfsetup/install/files/lib/system/database/DatabaseException.class.php b/wcfsetup/install/files/lib/system/database/DatabaseException.class.php
index 0b3a398ed9..5d5b4c7c9b 100644
--- a/wcfsetup/install/files/lib/system/database/DatabaseException.class.php
+++ b/wcfsetup/install/files/lib/system/database/DatabaseException.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\database;
 use wcf\system\database\statement\PreparedStatement;
 use wcf\system\exception\SystemException;
diff --git a/wcfsetup/install/files/lib/system/database/MySQLDatabase.class.php b/wcfsetup/install/files/lib/system/database/MySQLDatabase.class.php
index c4b7350ec4..5cc07591e3 100644
--- a/wcfsetup/install/files/lib/system/database/MySQLDatabase.class.php
+++ b/wcfsetup/install/files/lib/system/database/MySQLDatabase.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\database;
 use wcf\system\database\editor\MySQLDatabaseEditor;
 use wcf\system\database\exception\DatabaseException as GenericDatabaseException;
diff --git a/wcfsetup/install/files/lib/system/database/Redis.class.php b/wcfsetup/install/files/lib/system/database/Redis.class.php
index 46f1147714..1408b52927 100644
--- a/wcfsetup/install/files/lib/system/database/Redis.class.php
+++ b/wcfsetup/install/files/lib/system/database/Redis.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\database;
 use wcf\system\Regex;
 use wcf\util\StringUtil;
diff --git a/wcfsetup/install/files/lib/system/database/editor/DatabaseEditor.class.php b/wcfsetup/install/files/lib/system/database/editor/DatabaseEditor.class.php
index 32adf3af0d..0502793658 100644
--- a/wcfsetup/install/files/lib/system/database/editor/DatabaseEditor.class.php
+++ b/wcfsetup/install/files/lib/system/database/editor/DatabaseEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\database\editor;
 use wcf\system\database\Database;
 
diff --git a/wcfsetup/install/files/lib/system/database/editor/MySQLDatabaseEditor.class.php b/wcfsetup/install/files/lib/system/database/editor/MySQLDatabaseEditor.class.php
index defbf1e32c..6ecd5548dc 100644
--- a/wcfsetup/install/files/lib/system/database/editor/MySQLDatabaseEditor.class.php
+++ b/wcfsetup/install/files/lib/system/database/editor/MySQLDatabaseEditor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\database\editor;
 use wcf\system\Regex;
 
diff --git a/wcfsetup/install/files/lib/system/database/exception/DatabaseException.class.php b/wcfsetup/install/files/lib/system/database/exception/DatabaseException.class.php
index cc879413a6..75e9f4b3bd 100644
--- a/wcfsetup/install/files/lib/system/database/exception/DatabaseException.class.php
+++ b/wcfsetup/install/files/lib/system/database/exception/DatabaseException.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\database\exception;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/database/exception/DatabaseQueryException.class.php b/wcfsetup/install/files/lib/system/database/exception/DatabaseQueryException.class.php
index 3a3abd32c6..747d3cf4e2 100644
--- a/wcfsetup/install/files/lib/system/database/exception/DatabaseQueryException.class.php
+++ b/wcfsetup/install/files/lib/system/database/exception/DatabaseQueryException.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\database\exception;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/database/exception/DatabaseQueryExecutionException.class.php b/wcfsetup/install/files/lib/system/database/exception/DatabaseQueryExecutionException.class.php
index ba6e50ccab..48803550b4 100644
--- a/wcfsetup/install/files/lib/system/database/exception/DatabaseQueryExecutionException.class.php
+++ b/wcfsetup/install/files/lib/system/database/exception/DatabaseQueryExecutionException.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\database\exception;
 use wcf\system\exception\IExtraInformationException;
 use wcf\util\StringUtil;
diff --git a/wcfsetup/install/files/lib/system/database/exception/DatabaseTransactionException.class.php b/wcfsetup/install/files/lib/system/database/exception/DatabaseTransactionException.class.php
index ef06a8523d..1d03eb93d4 100644
--- a/wcfsetup/install/files/lib/system/database/exception/DatabaseTransactionException.class.php
+++ b/wcfsetup/install/files/lib/system/database/exception/DatabaseTransactionException.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\database\exception;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/database/statement/PreparedStatement.class.php b/wcfsetup/install/files/lib/system/database/statement/PreparedStatement.class.php
index bab5ae7fb3..a5570b3e84 100644
--- a/wcfsetup/install/files/lib/system/database/statement/PreparedStatement.class.php
+++ b/wcfsetup/install/files/lib/system/database/statement/PreparedStatement.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\database\statement;
 use wcf\data\DatabaseObject;
 use wcf\system\benchmark\Benchmark;
diff --git a/wcfsetup/install/files/lib/system/database/util/ConditionBuilder.class.php b/wcfsetup/install/files/lib/system/database/util/ConditionBuilder.class.php
index 845ddf3e1f..74d82d024a 100644
--- a/wcfsetup/install/files/lib/system/database/util/ConditionBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/database/util/ConditionBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\database\util;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/database/util/PreparedStatementConditionBuilder.class.php b/wcfsetup/install/files/lib/system/database/util/PreparedStatementConditionBuilder.class.php
index cf630a031f..e3cbe578b8 100644
--- a/wcfsetup/install/files/lib/system/database/util/PreparedStatementConditionBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/database/util/PreparedStatementConditionBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\database\util;
 use wcf\system\exception\SystemException;
 
diff --git a/wcfsetup/install/files/lib/system/database/util/SQLParser.class.php b/wcfsetup/install/files/lib/system/database/util/SQLParser.class.php
index 8fd5a46588..92703cde42 100644
--- a/wcfsetup/install/files/lib/system/database/util/SQLParser.class.php
+++ b/wcfsetup/install/files/lib/system/database/util/SQLParser.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\database\util;
 use wcf\system\exception\SystemException;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/system/devtools/DevtoolsSetup.class.php b/wcfsetup/install/files/lib/system/devtools/DevtoolsSetup.class.php
index 836666ece7..cbef84d596 100644
--- a/wcfsetup/install/files/lib/system/devtools/DevtoolsSetup.class.php
+++ b/wcfsetup/install/files/lib/system/devtools/DevtoolsSetup.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\devtools;
 use wcf\system\SingletonFactory;
 use wcf\util\FileUtil;
diff --git a/wcfsetup/install/files/lib/system/devtools/package/DevtoolsInstaller.class.php b/wcfsetup/install/files/lib/system/devtools/package/DevtoolsInstaller.class.php
index 3f621594fc..d3b65d25bd 100644
--- a/wcfsetup/install/files/lib/system/devtools/package/DevtoolsInstaller.class.php
+++ b/wcfsetup/install/files/lib/system/devtools/package/DevtoolsInstaller.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\devtools\package;
 use wcf\data\devtools\project\DevtoolsProject;
 use wcf\system\setup\Installer;
diff --git a/wcfsetup/install/files/lib/system/devtools/package/DevtoolsPackageArchive.class.php b/wcfsetup/install/files/lib/system/devtools/package/DevtoolsPackageArchive.class.php
index b3624f0af9..4f49ec94ce 100644
--- a/wcfsetup/install/files/lib/system/devtools/package/DevtoolsPackageArchive.class.php
+++ b/wcfsetup/install/files/lib/system/devtools/package/DevtoolsPackageArchive.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\devtools\package;
 use wcf\system\package\PackageArchive;
 
diff --git a/wcfsetup/install/files/lib/system/devtools/package/DevtoolsTar.class.php b/wcfsetup/install/files/lib/system/devtools/package/DevtoolsTar.class.php
index ea32dfaba4..781713ec8f 100644
--- a/wcfsetup/install/files/lib/system/devtools/package/DevtoolsTar.class.php
+++ b/wcfsetup/install/files/lib/system/devtools/package/DevtoolsTar.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\devtools\package;
 use wcf\system\io\Tar;
 
diff --git a/wcfsetup/install/files/lib/system/devtools/pip/DevtoolsPackageInstallationDispatcher.class.php b/wcfsetup/install/files/lib/system/devtools/pip/DevtoolsPackageInstallationDispatcher.class.php
index 5f541b77be..d6b59a5744 100644
--- a/wcfsetup/install/files/lib/system/devtools/pip/DevtoolsPackageInstallationDispatcher.class.php
+++ b/wcfsetup/install/files/lib/system/devtools/pip/DevtoolsPackageInstallationDispatcher.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\devtools\pip;
 use wcf\data\devtools\project\DevtoolsProject;
 use wcf\system\devtools\package\DevtoolsInstaller;
diff --git a/wcfsetup/install/files/lib/system/devtools/pip/DevtoolsPackageInstallationQueue.class.php b/wcfsetup/install/files/lib/system/devtools/pip/DevtoolsPackageInstallationQueue.class.php
index 357c29a919..ba8357e159 100644
--- a/wcfsetup/install/files/lib/system/devtools/pip/DevtoolsPackageInstallationQueue.class.php
+++ b/wcfsetup/install/files/lib/system/devtools/pip/DevtoolsPackageInstallationQueue.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\devtools\pip;
 use wcf\data\devtools\project\DevtoolsProject;
 use wcf\data\package\installation\queue\PackageInstallationQueue;
diff --git a/wcfsetup/install/files/lib/system/devtools/pip/DevtoolsPip.class.php b/wcfsetup/install/files/lib/system/devtools/pip/DevtoolsPip.class.php
index 71e7a8f0d9..3b72a871ab 100644
--- a/wcfsetup/install/files/lib/system/devtools/pip/DevtoolsPip.class.php
+++ b/wcfsetup/install/files/lib/system/devtools/pip/DevtoolsPip.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\devtools\pip;
 use wcf\data\devtools\project\DevtoolsProject;
 use wcf\data\package\installation\plugin\PackageInstallationPlugin;
diff --git a/wcfsetup/install/files/lib/system/devtools/pip/IIdempotentPackageInstallationPlugin.class.php b/wcfsetup/install/files/lib/system/devtools/pip/IIdempotentPackageInstallationPlugin.class.php
index c2089e875b..9a2d9fb6f8 100644
--- a/wcfsetup/install/files/lib/system/devtools/pip/IIdempotentPackageInstallationPlugin.class.php
+++ b/wcfsetup/install/files/lib/system/devtools/pip/IIdempotentPackageInstallationPlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\devtools\pip;
 use wcf\system\package\plugin\IPackageInstallationPlugin;
 
diff --git a/wcfsetup/install/files/lib/system/edit/EditHistoryManager.class.php b/wcfsetup/install/files/lib/system/edit/EditHistoryManager.class.php
index 08e0e20598..ed2df76239 100644
--- a/wcfsetup/install/files/lib/system/edit/EditHistoryManager.class.php
+++ b/wcfsetup/install/files/lib/system/edit/EditHistoryManager.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\edit;
 use wcf\data\edit\history\entry\EditHistoryEntryList;
 use wcf\data\object\type\ObjectTypeCache;
diff --git a/wcfsetup/install/files/lib/system/edit/IHistorySavingObject.class.php b/wcfsetup/install/files/lib/system/edit/IHistorySavingObject.class.php
index 9a6effb4a9..90798c2fac 100644
--- a/wcfsetup/install/files/lib/system/edit/IHistorySavingObject.class.php
+++ b/wcfsetup/install/files/lib/system/edit/IHistorySavingObject.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\edit;
 use wcf\data\edit\history\entry\EditHistoryEntry;
 use wcf\data\IDatabaseObjectProcessor;
diff --git a/wcfsetup/install/files/lib/system/edit/IHistorySavingObjectTypeProvider.class.php b/wcfsetup/install/files/lib/system/edit/IHistorySavingObjectTypeProvider.class.php
index 0ad7bfb49d..978ff9f2f6 100644
--- a/wcfsetup/install/files/lib/system/edit/IHistorySavingObjectTypeProvider.class.php
+++ b/wcfsetup/install/files/lib/system/edit/IHistorySavingObjectTypeProvider.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\edit;
 use wcf\data\object\type\IObjectTypeProvider;
 use wcf\system\exception\PermissionDeniedException;
diff --git a/wcfsetup/install/files/lib/system/email/Email.class.php b/wcfsetup/install/files/lib/system/email/Email.class.php
index 3ea6284c5b..ff733c7204 100644
--- a/wcfsetup/install/files/lib/system/email/Email.class.php
+++ b/wcfsetup/install/files/lib/system/email/Email.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\email;
 use wcf\system\application\ApplicationHandler;
 use wcf\system\background\job\AbstractBackgroundJob;
diff --git a/wcfsetup/install/files/lib/system/email/EmailGrammar.class.php b/wcfsetup/install/files/lib/system/email/EmailGrammar.class.php
index ed3d8a00cb..a96ebbf126 100644
--- a/wcfsetup/install/files/lib/system/email/EmailGrammar.class.php
+++ b/wcfsetup/install/files/lib/system/email/EmailGrammar.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\email;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/email/Mailbox.class.php b/wcfsetup/install/files/lib/system/email/Mailbox.class.php
index f246dce227..f512a74543 100644
--- a/wcfsetup/install/files/lib/system/email/Mailbox.class.php
+++ b/wcfsetup/install/files/lib/system/email/Mailbox.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\email;
 use TrueBV\Punycode;
 use wcf\data\language\Language;
diff --git a/wcfsetup/install/files/lib/system/email/SimpleEmail.class.php b/wcfsetup/install/files/lib/system/email/SimpleEmail.class.php
index b9830c70ab..cc9c6c5229 100644
--- a/wcfsetup/install/files/lib/system/email/SimpleEmail.class.php
+++ b/wcfsetup/install/files/lib/system/email/SimpleEmail.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\email;
 use wcf\data\user\User;
 use wcf\system\email\mime\HtmlTextMimePart;
diff --git a/wcfsetup/install/files/lib/system/email/UserMailbox.class.php b/wcfsetup/install/files/lib/system/email/UserMailbox.class.php
index 305d6a9289..bce4ebd2c5 100644
--- a/wcfsetup/install/files/lib/system/email/UserMailbox.class.php
+++ b/wcfsetup/install/files/lib/system/email/UserMailbox.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\email;
 use wcf\data\user\User;
 
diff --git a/wcfsetup/install/files/lib/system/email/mime/AbstractMimePart.class.php b/wcfsetup/install/files/lib/system/email/mime/AbstractMimePart.class.php
index 0850e4bfb2..fc3b0a472f 100644
--- a/wcfsetup/install/files/lib/system/email/mime/AbstractMimePart.class.php
+++ b/wcfsetup/install/files/lib/system/email/mime/AbstractMimePart.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\email\mime;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/email/mime/AbstractMultipartMimePart.class.php b/wcfsetup/install/files/lib/system/email/mime/AbstractMultipartMimePart.class.php
index 801ce5882a..b8f0423660 100644
--- a/wcfsetup/install/files/lib/system/email/mime/AbstractMultipartMimePart.class.php
+++ b/wcfsetup/install/files/lib/system/email/mime/AbstractMultipartMimePart.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\email\mime;
 use wcf\system\email\Mailbox;
 use wcf\util\StringUtil;
diff --git a/wcfsetup/install/files/lib/system/email/mime/AttachmentMimePart.class.php b/wcfsetup/install/files/lib/system/email/mime/AttachmentMimePart.class.php
index 187ef813a1..ffbcd9676a 100644
--- a/wcfsetup/install/files/lib/system/email/mime/AttachmentMimePart.class.php
+++ b/wcfsetup/install/files/lib/system/email/mime/AttachmentMimePart.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\email\mime;
 use wcf\util\FileUtil;
 use wcf\util\StringUtil;
diff --git a/wcfsetup/install/files/lib/system/email/mime/HtmlTextMimePart.class.php b/wcfsetup/install/files/lib/system/email/mime/HtmlTextMimePart.class.php
index 9cb4857fca..be0ba04cd5 100644
--- a/wcfsetup/install/files/lib/system/email/mime/HtmlTextMimePart.class.php
+++ b/wcfsetup/install/files/lib/system/email/mime/HtmlTextMimePart.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\email\mime;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/email/mime/IRecipientAwareMimePart.class.php b/wcfsetup/install/files/lib/system/email/mime/IRecipientAwareMimePart.class.php
index 48fa1cc5bd..750b3fde93 100644
--- a/wcfsetup/install/files/lib/system/email/mime/IRecipientAwareMimePart.class.php
+++ b/wcfsetup/install/files/lib/system/email/mime/IRecipientAwareMimePart.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\email\mime;
 use wcf\system\email\Mailbox;
 
diff --git a/wcfsetup/install/files/lib/system/email/mime/MimePartFacade.class.php b/wcfsetup/install/files/lib/system/email/mime/MimePartFacade.class.php
index 10e519dae5..5f8edf25ae 100644
--- a/wcfsetup/install/files/lib/system/email/mime/MimePartFacade.class.php
+++ b/wcfsetup/install/files/lib/system/email/mime/MimePartFacade.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\email\mime;
 use wcf\system\email\Mailbox;
 
diff --git a/wcfsetup/install/files/lib/system/email/mime/MultipartAlternativeMimePart.class.php b/wcfsetup/install/files/lib/system/email/mime/MultipartAlternativeMimePart.class.php
index 3543463d88..6de2217dfb 100644
--- a/wcfsetup/install/files/lib/system/email/mime/MultipartAlternativeMimePart.class.php
+++ b/wcfsetup/install/files/lib/system/email/mime/MultipartAlternativeMimePart.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\email\mime;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/email/mime/MultipartMixedMimePart.class.php b/wcfsetup/install/files/lib/system/email/mime/MultipartMixedMimePart.class.php
index 513908e71e..2ecf8adbba 100644
--- a/wcfsetup/install/files/lib/system/email/mime/MultipartMixedMimePart.class.php
+++ b/wcfsetup/install/files/lib/system/email/mime/MultipartMixedMimePart.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\email\mime;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/email/mime/PlainTextMimePart.class.php b/wcfsetup/install/files/lib/system/email/mime/PlainTextMimePart.class.php
index a5922ec855..dbb0740888 100644
--- a/wcfsetup/install/files/lib/system/email/mime/PlainTextMimePart.class.php
+++ b/wcfsetup/install/files/lib/system/email/mime/PlainTextMimePart.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\email\mime;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/email/mime/RecipientAwareTextMimePart.class.php b/wcfsetup/install/files/lib/system/email/mime/RecipientAwareTextMimePart.class.php
index 556b84aca8..a448c4016d 100644
--- a/wcfsetup/install/files/lib/system/email/mime/RecipientAwareTextMimePart.class.php
+++ b/wcfsetup/install/files/lib/system/email/mime/RecipientAwareTextMimePart.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\email\mime;
 use Pelago\Emogrifier;
 use wcf\data\style\ActiveStyle;
diff --git a/wcfsetup/install/files/lib/system/email/mime/TextMimePart.class.php b/wcfsetup/install/files/lib/system/email/mime/TextMimePart.class.php
index 9960bd9cf2..dfcb3c2c03 100644
--- a/wcfsetup/install/files/lib/system/email/mime/TextMimePart.class.php
+++ b/wcfsetup/install/files/lib/system/email/mime/TextMimePart.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\email\mime;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/email/transport/DebugEmailTransport.class.php b/wcfsetup/install/files/lib/system/email/transport/DebugEmailTransport.class.php
index 71ec6ba58a..09c804e737 100644
--- a/wcfsetup/install/files/lib/system/email/transport/DebugEmailTransport.class.php
+++ b/wcfsetup/install/files/lib/system/email/transport/DebugEmailTransport.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\email\transport;
 use wcf\system\email\Email;
 use wcf\system\email\Mailbox;
diff --git a/wcfsetup/install/files/lib/system/email/transport/IEmailTransport.class.php b/wcfsetup/install/files/lib/system/email/transport/IEmailTransport.class.php
index 54a7393f4e..9b55ab8e3f 100644
--- a/wcfsetup/install/files/lib/system/email/transport/IEmailTransport.class.php
+++ b/wcfsetup/install/files/lib/system/email/transport/IEmailTransport.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\email\transport;
 use wcf\system\email\Email;
 use wcf\system\email\Mailbox;
diff --git a/wcfsetup/install/files/lib/system/email/transport/PhpEmailTransport.class.php b/wcfsetup/install/files/lib/system/email/transport/PhpEmailTransport.class.php
index c465ff6fcb..528d78f575 100644
--- a/wcfsetup/install/files/lib/system/email/transport/PhpEmailTransport.class.php
+++ b/wcfsetup/install/files/lib/system/email/transport/PhpEmailTransport.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\email\transport;
 use wcf\system\email\transport\exception\TransientFailure;
 use wcf\system\email\Email;
diff --git a/wcfsetup/install/files/lib/system/email/transport/SmtpEmailTransport.class.php b/wcfsetup/install/files/lib/system/email/transport/SmtpEmailTransport.class.php
index b11c1549a3..793d775b4c 100644
--- a/wcfsetup/install/files/lib/system/email/transport/SmtpEmailTransport.class.php
+++ b/wcfsetup/install/files/lib/system/email/transport/SmtpEmailTransport.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\email\transport;
 use wcf\system\email\transport\exception\PermanentFailure;
 use wcf\system\email\transport\exception\TransientFailure;
diff --git a/wcfsetup/install/files/lib/system/email/transport/exception/PermanentFailure.class.php b/wcfsetup/install/files/lib/system/email/transport/exception/PermanentFailure.class.php
index 2f793e9cfb..0cd6cc1c16 100644
--- a/wcfsetup/install/files/lib/system/email/transport/exception/PermanentFailure.class.php
+++ b/wcfsetup/install/files/lib/system/email/transport/exception/PermanentFailure.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\email\transport\exception;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/email/transport/exception/TransientFailure.class.php b/wcfsetup/install/files/lib/system/email/transport/exception/TransientFailure.class.php
index 0bcff4a3d3..2e8307902e 100644
--- a/wcfsetup/install/files/lib/system/email/transport/exception/TransientFailure.class.php
+++ b/wcfsetup/install/files/lib/system/email/transport/exception/TransientFailure.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\email\transport\exception;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/event/EventHandler.class.php b/wcfsetup/install/files/lib/system/event/EventHandler.class.php
index 926bdbffb2..63add6e186 100644
--- a/wcfsetup/install/files/lib/system/event/EventHandler.class.php
+++ b/wcfsetup/install/files/lib/system/event/EventHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\event;
 use wcf\data\event\listener\EventListener;
 use wcf\system\cache\builder\EventListenerCacheBuilder;
diff --git a/wcfsetup/install/files/lib/system/event/IEventListener.class.php b/wcfsetup/install/files/lib/system/event/IEventListener.class.php
index ce30d99a89..47e514048a 100644
--- a/wcfsetup/install/files/lib/system/event/IEventListener.class.php
+++ b/wcfsetup/install/files/lib/system/event/IEventListener.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\event;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/event/listener/AbstractHtmlInputNodeProcessorListener.class.php b/wcfsetup/install/files/lib/system/event/listener/AbstractHtmlInputNodeProcessorListener.class.php
index 3bbb4c181d..81d28407a9 100644
--- a/wcfsetup/install/files/lib/system/event/listener/AbstractHtmlInputNodeProcessorListener.class.php
+++ b/wcfsetup/install/files/lib/system/event/listener/AbstractHtmlInputNodeProcessorListener.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\event\listener;
 use wcf\data\DatabaseObjectDecorator;
 use wcf\data\ITitledObject;
diff --git a/wcfsetup/install/files/lib/system/event/listener/AbstractUserActionRenameListener.class.php b/wcfsetup/install/files/lib/system/event/listener/AbstractUserActionRenameListener.class.php
index 1879cd2865..5ee01f2421 100644
--- a/wcfsetup/install/files/lib/system/event/listener/AbstractUserActionRenameListener.class.php
+++ b/wcfsetup/install/files/lib/system/event/listener/AbstractUserActionRenameListener.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\event\listener;
 use wcf\data\user\UserAction;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/system/event/listener/AbstractUserMergeListener.class.php b/wcfsetup/install/files/lib/system/event/listener/AbstractUserMergeListener.class.php
index f310087b7b..252f57a29e 100644
--- a/wcfsetup/install/files/lib/system/event/listener/AbstractUserMergeListener.class.php
+++ b/wcfsetup/install/files/lib/system/event/listener/AbstractUserMergeListener.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\event\listener;
 use wcf\acp\form\UserMergeForm;
 use wcf\system\database\util\PreparedStatementConditionBuilder;
diff --git a/wcfsetup/install/files/lib/system/event/listener/ArticleLinkHtmlInputNodeProcessorListener.class.php b/wcfsetup/install/files/lib/system/event/listener/ArticleLinkHtmlInputNodeProcessorListener.class.php
index c7e677b2ca..694fd8860b 100644
--- a/wcfsetup/install/files/lib/system/event/listener/ArticleLinkHtmlInputNodeProcessorListener.class.php
+++ b/wcfsetup/install/files/lib/system/event/listener/ArticleLinkHtmlInputNodeProcessorListener.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\event\listener;
 use wcf\data\article\content\ArticleContentList;
 use wcf\data\article\AccessibleArticleList;
diff --git a/wcfsetup/install/files/lib/system/event/listener/IParameterizedEventListener.class.php b/wcfsetup/install/files/lib/system/event/listener/IParameterizedEventListener.class.php
index 70b806dd8e..8f99c33250 100644
--- a/wcfsetup/install/files/lib/system/event/listener/IParameterizedEventListener.class.php
+++ b/wcfsetup/install/files/lib/system/event/listener/IParameterizedEventListener.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\event\listener;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/event/listener/SessionAccessLogListener.class.php b/wcfsetup/install/files/lib/system/event/listener/SessionAccessLogListener.class.php
index 5411201d6d..8f911ba3aa 100644
--- a/wcfsetup/install/files/lib/system/event/listener/SessionAccessLogListener.class.php
+++ b/wcfsetup/install/files/lib/system/event/listener/SessionAccessLogListener.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\event\listener;
 use wcf\data\acp\session\access\log\ACPSessionAccessLogEditor;
 use wcf\data\acp\session\log\ACPSessionLog;
diff --git a/wcfsetup/install/files/lib/system/exception/AJAXException.class.php b/wcfsetup/install/files/lib/system/exception/AJAXException.class.php
index dd9e0fde54..04fd78ad8d 100644
--- a/wcfsetup/install/files/lib/system/exception/AJAXException.class.php
+++ b/wcfsetup/install/files/lib/system/exception/AJAXException.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\exception;
 use wcf\system\WCF;
 use wcf\util\JSON;
diff --git a/wcfsetup/install/files/lib/system/exception/ErrorException.class.php b/wcfsetup/install/files/lib/system/exception/ErrorException.class.php
index fe5e820eec..c4b97c61bc 100644
--- a/wcfsetup/install/files/lib/system/exception/ErrorException.class.php
+++ b/wcfsetup/install/files/lib/system/exception/ErrorException.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\exception;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/exception/HTTPNotFoundException.class.php b/wcfsetup/install/files/lib/system/exception/HTTPNotFoundException.class.php
index e836b8626e..b9ecdb5046 100644
--- a/wcfsetup/install/files/lib/system/exception/HTTPNotFoundException.class.php
+++ b/wcfsetup/install/files/lib/system/exception/HTTPNotFoundException.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\exception;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/exception/HTTPServerErrorException.class.php b/wcfsetup/install/files/lib/system/exception/HTTPServerErrorException.class.php
index d0fccc7a1d..78c868059b 100644
--- a/wcfsetup/install/files/lib/system/exception/HTTPServerErrorException.class.php
+++ b/wcfsetup/install/files/lib/system/exception/HTTPServerErrorException.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\exception;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/exception/HTTPUnauthorizedException.class.php b/wcfsetup/install/files/lib/system/exception/HTTPUnauthorizedException.class.php
index 51fa215f23..d310fd147b 100644
--- a/wcfsetup/install/files/lib/system/exception/HTTPUnauthorizedException.class.php
+++ b/wcfsetup/install/files/lib/system/exception/HTTPUnauthorizedException.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\exception;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/exception/IExtraInformationException.class.php b/wcfsetup/install/files/lib/system/exception/IExtraInformationException.class.php
index a2e8fdb6fb..d3c8e15b23 100644
--- a/wcfsetup/install/files/lib/system/exception/IExtraInformationException.class.php
+++ b/wcfsetup/install/files/lib/system/exception/IExtraInformationException.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\exception;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/exception/IPrintableException.class.php b/wcfsetup/install/files/lib/system/exception/IPrintableException.class.php
index ecdea9a999..ec342d6c7a 100644
--- a/wcfsetup/install/files/lib/system/exception/IPrintableException.class.php
+++ b/wcfsetup/install/files/lib/system/exception/IPrintableException.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\exception;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/exception/IllegalLinkException.class.php b/wcfsetup/install/files/lib/system/exception/IllegalLinkException.class.php
index 740d574df3..3594db18ed 100644
--- a/wcfsetup/install/files/lib/system/exception/IllegalLinkException.class.php
+++ b/wcfsetup/install/files/lib/system/exception/IllegalLinkException.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\exception;
 use wcf\system\WCF;
 
diff --git a/wcfsetup/install/files/lib/system/exception/ImplementationException.class.php b/wcfsetup/install/files/lib/system/exception/ImplementationException.class.php
index 3c22d57cfa..f5891b1d46 100644
--- a/wcfsetup/install/files/lib/system/exception/ImplementationException.class.php
+++ b/wcfsetup/install/files/lib/system/exception/ImplementationException.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\exception;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/exception/InvalidObjectTypeException.class.php b/wcfsetup/install/files/lib/system/exception/InvalidObjectTypeException.class.php
index 76bf32d6e7..7a524577a1 100644
--- a/wcfsetup/install/files/lib/system/exception/InvalidObjectTypeException.class.php
+++ b/wcfsetup/install/files/lib/system/exception/InvalidObjectTypeException.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\exception;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/exception/InvalidSecurityTokenException.class.php b/wcfsetup/install/files/lib/system/exception/InvalidSecurityTokenException.class.php
index 9fe2eed78a..23b459c785 100644
--- a/wcfsetup/install/files/lib/system/exception/InvalidSecurityTokenException.class.php
+++ b/wcfsetup/install/files/lib/system/exception/InvalidSecurityTokenException.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\exception;
 use wcf\system\WCF;
 
diff --git a/wcfsetup/install/files/lib/system/exception/LoggedException.class.php b/wcfsetup/install/files/lib/system/exception/LoggedException.class.php
index 55f5d995c0..17ac63e52a 100644
--- a/wcfsetup/install/files/lib/system/exception/LoggedException.class.php
+++ b/wcfsetup/install/files/lib/system/exception/LoggedException.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\exception;
 // @codingStandardsIgnoreFile
 
diff --git a/wcfsetup/install/files/lib/system/exception/NamedUserException.class.php b/wcfsetup/install/files/lib/system/exception/NamedUserException.class.php
index e7bedc4e87..c35bd566ee 100644
--- a/wcfsetup/install/files/lib/system/exception/NamedUserException.class.php
+++ b/wcfsetup/install/files/lib/system/exception/NamedUserException.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\exception;
 use wcf\system\box\BoxHandler;
 use wcf\system\session\SessionHandler;
diff --git a/wcfsetup/install/files/lib/system/exception/NotImplementedException.class.php b/wcfsetup/install/files/lib/system/exception/NotImplementedException.class.php
index 8a3083edbe..12051a60b4 100644
--- a/wcfsetup/install/files/lib/system/exception/NotImplementedException.class.php
+++ b/wcfsetup/install/files/lib/system/exception/NotImplementedException.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\exception;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/exception/ParentClassException.class.php b/wcfsetup/install/files/lib/system/exception/ParentClassException.class.php
index cdce6f1b07..5ab8790bf2 100644
--- a/wcfsetup/install/files/lib/system/exception/ParentClassException.class.php
+++ b/wcfsetup/install/files/lib/system/exception/ParentClassException.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\exception;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/exception/PermissionDeniedException.class.php b/wcfsetup/install/files/lib/system/exception/PermissionDeniedException.class.php
index ab3965b135..97a34963df 100644
--- a/wcfsetup/install/files/lib/system/exception/PermissionDeniedException.class.php
+++ b/wcfsetup/install/files/lib/system/exception/PermissionDeniedException.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\exception;
 use wcf\system\box\BoxHandler;
 use wcf\system\notice\NoticeHandler;
diff --git a/wcfsetup/install/files/lib/system/exception/SystemException.class.php b/wcfsetup/install/files/lib/system/exception/SystemException.class.php
index 5b2d6a4968..5477bb9ffb 100644
--- a/wcfsetup/install/files/lib/system/exception/SystemException.class.php
+++ b/wcfsetup/install/files/lib/system/exception/SystemException.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\exception;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/exception/UserException.class.php b/wcfsetup/install/files/lib/system/exception/UserException.class.php
index e618d739ae..f42f37e29f 100644
--- a/wcfsetup/install/files/lib/system/exception/UserException.class.php
+++ b/wcfsetup/install/files/lib/system/exception/UserException.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\exception;
 use wcf\system\WCF;
 
diff --git a/wcfsetup/install/files/lib/system/exception/UserInputException.class.php b/wcfsetup/install/files/lib/system/exception/UserInputException.class.php
index 3acec85b9b..d4ce4d1e89 100644
--- a/wcfsetup/install/files/lib/system/exception/UserInputException.class.php
+++ b/wcfsetup/install/files/lib/system/exception/UserInputException.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\exception;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/exception/ValidateActionException.class.php b/wcfsetup/install/files/lib/system/exception/ValidateActionException.class.php
index 016ca073e5..809e0847c3 100644
--- a/wcfsetup/install/files/lib/system/exception/ValidateActionException.class.php
+++ b/wcfsetup/install/files/lib/system/exception/ValidateActionException.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\exception;
 use wcf\system\WCF;
 
diff --git a/wcfsetup/install/files/lib/system/exporter/AbstractExporter.class.php b/wcfsetup/install/files/lib/system/exporter/AbstractExporter.class.php
index 5d8ad18dad..f5a7323a9d 100644
--- a/wcfsetup/install/files/lib/system/exporter/AbstractExporter.class.php
+++ b/wcfsetup/install/files/lib/system/exporter/AbstractExporter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\exporter;
 use wcf\system\database\MySQLDatabase;
 use wcf\system\exception\SystemException;
diff --git a/wcfsetup/install/files/lib/system/exporter/IExporter.class.php b/wcfsetup/install/files/lib/system/exporter/IExporter.class.php
index 178c05c484..e8ed6029ba 100644
--- a/wcfsetup/install/files/lib/system/exporter/IExporter.class.php
+++ b/wcfsetup/install/files/lib/system/exporter/IExporter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\exporter;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/feed/enclosure/FeedEnclosure.class.php b/wcfsetup/install/files/lib/system/feed/enclosure/FeedEnclosure.class.php
index 176b6d95d9..a15c564cf9 100644
--- a/wcfsetup/install/files/lib/system/feed/enclosure/FeedEnclosure.class.php
+++ b/wcfsetup/install/files/lib/system/feed/enclosure/FeedEnclosure.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\feed\enclosure;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/form/FormDocument.class.php b/wcfsetup/install/files/lib/system/form/FormDocument.class.php
index 25e6ecef33..158fbf00de 100644
--- a/wcfsetup/install/files/lib/system/form/FormDocument.class.php
+++ b/wcfsetup/install/files/lib/system/form/FormDocument.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\form;
 use wcf\util\StringUtil;
 
diff --git a/wcfsetup/install/files/lib/system/form/IFormElement.class.php b/wcfsetup/install/files/lib/system/form/IFormElement.class.php
index 16f1b3c1c1..17192865c2 100644
--- a/wcfsetup/install/files/lib/system/form/IFormElement.class.php
+++ b/wcfsetup/install/files/lib/system/form/IFormElement.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\form;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/form/IFormElementContainer.class.php b/wcfsetup/install/files/lib/system/form/IFormElementContainer.class.php
index c63254e320..bf08f994cd 100644
--- a/wcfsetup/install/files/lib/system/form/IFormElementContainer.class.php
+++ b/wcfsetup/install/files/lib/system/form/IFormElementContainer.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\form;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/form/container/AbstractFormElementContainer.class.php b/wcfsetup/install/files/lib/system/form/container/AbstractFormElementContainer.class.php
index 6c90bf8440..4dbff33e57 100644
--- a/wcfsetup/install/files/lib/system/form/container/AbstractFormElementContainer.class.php
+++ b/wcfsetup/install/files/lib/system/form/container/AbstractFormElementContainer.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\form\container;
 use wcf\system\form\element\AbstractNamedFormElement;
 use wcf\system\form\IFormElement;
diff --git a/wcfsetup/install/files/lib/system/form/container/GroupFormElementContainer.class.php b/wcfsetup/install/files/lib/system/form/container/GroupFormElementContainer.class.php
index 03d0eee627..9786dd666a 100644
--- a/wcfsetup/install/files/lib/system/form/container/GroupFormElementContainer.class.php
+++ b/wcfsetup/install/files/lib/system/form/container/GroupFormElementContainer.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\form\container;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/form/container/MultipleSelectionFormElementContainer.class.php b/wcfsetup/install/files/lib/system/form/container/MultipleSelectionFormElementContainer.class.php
index e652a75a93..3184adc3ad 100644
--- a/wcfsetup/install/files/lib/system/form/container/MultipleSelectionFormElementContainer.class.php
+++ b/wcfsetup/install/files/lib/system/form/container/MultipleSelectionFormElementContainer.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\form\container;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/form/container/SelectionFormElementContainer.class.php b/wcfsetup/install/files/lib/system/form/container/SelectionFormElementContainer.class.php
index 46e3a6f475..72d867bc8e 100644
--- a/wcfsetup/install/files/lib/system/form/container/SelectionFormElementContainer.class.php
+++ b/wcfsetup/install/files/lib/system/form/container/SelectionFormElementContainer.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\form\container;
 use wcf\util\StringUtil;
 
diff --git a/wcfsetup/install/files/lib/system/form/container/SingleSelectionFormElementContainer.class.php b/wcfsetup/install/files/lib/system/form/container/SingleSelectionFormElementContainer.class.php
index 9efdd954d9..f29ab3ddd3 100644
--- a/wcfsetup/install/files/lib/system/form/container/SingleSelectionFormElementContainer.class.php
+++ b/wcfsetup/install/files/lib/system/form/container/SingleSelectionFormElementContainer.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\form\container;
 use wcf\util\StringUtil;
 
diff --git a/wcfsetup/install/files/lib/system/form/element/AbstractFormElement.class.php b/wcfsetup/install/files/lib/system/form/element/AbstractFormElement.class.php
index c65369d388..775f3a3cd9 100644
--- a/wcfsetup/install/files/lib/system/form/element/AbstractFormElement.class.php
+++ b/wcfsetup/install/files/lib/system/form/element/AbstractFormElement.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\form\element;
 use wcf\system\form\IFormElement;
 use wcf\system\form\IFormElementContainer;
diff --git a/wcfsetup/install/files/lib/system/form/element/AbstractNamedFormElement.class.php b/wcfsetup/install/files/lib/system/form/element/AbstractNamedFormElement.class.php
index b0815d3fe2..434149a148 100644
--- a/wcfsetup/install/files/lib/system/form/element/AbstractNamedFormElement.class.php
+++ b/wcfsetup/install/files/lib/system/form/element/AbstractNamedFormElement.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\form\element;
 use wcf\util\StringUtil;
 
diff --git a/wcfsetup/install/files/lib/system/form/element/LabelFormElement.class.php b/wcfsetup/install/files/lib/system/form/element/LabelFormElement.class.php
index 282cdaa9a3..233b87e36f 100644
--- a/wcfsetup/install/files/lib/system/form/element/LabelFormElement.class.php
+++ b/wcfsetup/install/files/lib/system/form/element/LabelFormElement.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\form\element;
 use wcf\util\StringUtil;
 
diff --git a/wcfsetup/install/files/lib/system/form/element/MultipleSelectionFormElement.class.php b/wcfsetup/install/files/lib/system/form/element/MultipleSelectionFormElement.class.php
index 4e94f7519d..6f1cf0c2da 100644
--- a/wcfsetup/install/files/lib/system/form/element/MultipleSelectionFormElement.class.php
+++ b/wcfsetup/install/files/lib/system/form/element/MultipleSelectionFormElement.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\form\element;
 use wcf\system\form\container\MultipleSelectionFormElementContainer;
 use wcf\util\StringUtil;
diff --git a/wcfsetup/install/files/lib/system/form/element/PasswordInputFormElement.class.php b/wcfsetup/install/files/lib/system/form/element/PasswordInputFormElement.class.php
index 01ad056fc0..0396f69769 100644
--- a/wcfsetup/install/files/lib/system/form/element/PasswordInputFormElement.class.php
+++ b/wcfsetup/install/files/lib/system/form/element/PasswordInputFormElement.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\form\element;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/form/element/SingleSelectionFormElement.class.php b/wcfsetup/install/files/lib/system/form/element/SingleSelectionFormElement.class.php
index a90b0f5b7e..dd48316ce9 100644
--- a/wcfsetup/install/files/lib/system/form/element/SingleSelectionFormElement.class.php
+++ b/wcfsetup/install/files/lib/system/form/element/SingleSelectionFormElement.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\form\element;
 use wcf\system\form\container\SingleSelectionFormElementContainer;
 
diff --git a/wcfsetup/install/files/lib/system/form/element/TextInputFormElement.class.php b/wcfsetup/install/files/lib/system/form/element/TextInputFormElement.class.php
index d318c0398e..d386914864 100644
--- a/wcfsetup/install/files/lib/system/form/element/TextInputFormElement.class.php
+++ b/wcfsetup/install/files/lib/system/form/element/TextInputFormElement.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\form\element;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/html/AbstractHtmlProcessor.class.php b/wcfsetup/install/files/lib/system/html/AbstractHtmlProcessor.class.php
index 3e8824298a..3fb28e7100 100644
--- a/wcfsetup/install/files/lib/system/html/AbstractHtmlProcessor.class.php
+++ b/wcfsetup/install/files/lib/system/html/AbstractHtmlProcessor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\html;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\system\exception\InvalidObjectTypeException;
diff --git a/wcfsetup/install/files/lib/system/html/IHtmlProcessor.class.php b/wcfsetup/install/files/lib/system/html/IHtmlProcessor.class.php
index 47994c5cab..4c60290e85 100644
--- a/wcfsetup/install/files/lib/system/html/IHtmlProcessor.class.php
+++ b/wcfsetup/install/files/lib/system/html/IHtmlProcessor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\html;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/html/input/HtmlInputProcessor.class.php b/wcfsetup/install/files/lib/system/html/input/HtmlInputProcessor.class.php
index 5a4acc3d4c..67afbef57b 100644
--- a/wcfsetup/install/files/lib/system/html/input/HtmlInputProcessor.class.php
+++ b/wcfsetup/install/files/lib/system/html/input/HtmlInputProcessor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\html\input;
 use wcf\system\bbcode\HtmlBBCodeParser;
 use wcf\system\html\input\filter\IHtmlInputFilter;
diff --git a/wcfsetup/install/files/lib/system/html/input/filter/HTMLPurifier_URIScheme_ts3server.php b/wcfsetup/install/files/lib/system/html/input/filter/HTMLPurifier_URIScheme_ts3server.php
index d93112810e..6f0d1fa844 100644
--- a/wcfsetup/install/files/lib/system/html/input/filter/HTMLPurifier_URIScheme_ts3server.php
+++ b/wcfsetup/install/files/lib/system/html/input/filter/HTMLPurifier_URIScheme_ts3server.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 // @codingStandardsIgnoreFile
 /**
  * Teamspeak 3 direct join protocol
diff --git a/wcfsetup/install/files/lib/system/html/input/filter/IHtmlInputFilter.class.php b/wcfsetup/install/files/lib/system/html/input/filter/IHtmlInputFilter.class.php
index c5807dd632..26fdcf7098 100644
--- a/wcfsetup/install/files/lib/system/html/input/filter/IHtmlInputFilter.class.php
+++ b/wcfsetup/install/files/lib/system/html/input/filter/IHtmlInputFilter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\html\input\filter;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/html/input/filter/MessageHtmlInputFilter.class.php b/wcfsetup/install/files/lib/system/html/input/filter/MessageHtmlInputFilter.class.php
index 89c5642d98..3d5bdcf516 100644
--- a/wcfsetup/install/files/lib/system/html/input/filter/MessageHtmlInputFilter.class.php
+++ b/wcfsetup/install/files/lib/system/html/input/filter/MessageHtmlInputFilter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\html\input\filter;
 use wcf\system\event\EventHandler;
 
diff --git a/wcfsetup/install/files/lib/system/html/input/node/AbstractHtmlInputNode.class.php b/wcfsetup/install/files/lib/system/html/input/node/AbstractHtmlInputNode.class.php
index 33a98c8d7f..b69fdaa313 100644
--- a/wcfsetup/install/files/lib/system/html/input/node/AbstractHtmlInputNode.class.php
+++ b/wcfsetup/install/files/lib/system/html/input/node/AbstractHtmlInputNode.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\html\input\node;
 use wcf\system\html\node\AbstractHtmlNode;
 
diff --git a/wcfsetup/install/files/lib/system/html/input/node/HtmlInputNodeImg.class.php b/wcfsetup/install/files/lib/system/html/input/node/HtmlInputNodeImg.class.php
index ba7cdcdffd..49e59e9a3a 100644
--- a/wcfsetup/install/files/lib/system/html/input/node/HtmlInputNodeImg.class.php
+++ b/wcfsetup/install/files/lib/system/html/input/node/HtmlInputNodeImg.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\html\input\node;
 use wcf\data\smiley\Smiley;
 use wcf\data\smiley\SmileyCache;
diff --git a/wcfsetup/install/files/lib/system/html/input/node/HtmlInputNodeKbd.class.php b/wcfsetup/install/files/lib/system/html/input/node/HtmlInputNodeKbd.class.php
index 6e6e90bcf5..ec78f908d5 100644
--- a/wcfsetup/install/files/lib/system/html/input/node/HtmlInputNodeKbd.class.php
+++ b/wcfsetup/install/files/lib/system/html/input/node/HtmlInputNodeKbd.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\html\input\node;
 use wcf\system\html\node\AbstractHtmlNodeProcessor;
 use wcf\util\DOMUtil;
diff --git a/wcfsetup/install/files/lib/system/html/input/node/HtmlInputNodeProcessor.class.php b/wcfsetup/install/files/lib/system/html/input/node/HtmlInputNodeProcessor.class.php
index 3397485f40..238cef856b 100644
--- a/wcfsetup/install/files/lib/system/html/input/node/HtmlInputNodeProcessor.class.php
+++ b/wcfsetup/install/files/lib/system/html/input/node/HtmlInputNodeProcessor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\html\input\node;
 use wcf\system\bbcode\BBCodeHandler;
 use wcf\system\event\EventHandler;
diff --git a/wcfsetup/install/files/lib/system/html/input/node/HtmlInputNodeSpan.class.php b/wcfsetup/install/files/lib/system/html/input/node/HtmlInputNodeSpan.class.php
index 9ffc152806..654c860ca8 100644
--- a/wcfsetup/install/files/lib/system/html/input/node/HtmlInputNodeSpan.class.php
+++ b/wcfsetup/install/files/lib/system/html/input/node/HtmlInputNodeSpan.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\html\input\node;
 use wcf\system\html\node\AbstractHtmlNodeProcessor;
 
diff --git a/wcfsetup/install/files/lib/system/html/input/node/HtmlInputNodeTable.class.php b/wcfsetup/install/files/lib/system/html/input/node/HtmlInputNodeTable.class.php
index d2a7831a8d..a6e51149a2 100644
--- a/wcfsetup/install/files/lib/system/html/input/node/HtmlInputNodeTable.class.php
+++ b/wcfsetup/install/files/lib/system/html/input/node/HtmlInputNodeTable.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\html\input\node;
 use wcf\system\html\node\AbstractHtmlNodeProcessor;
 use wcf\util\DOMUtil;
diff --git a/wcfsetup/install/files/lib/system/html/input/node/HtmlInputNodeTextParser.class.php b/wcfsetup/install/files/lib/system/html/input/node/HtmlInputNodeTextParser.class.php
index 67d313e0b4..6259bd2e94 100644
--- a/wcfsetup/install/files/lib/system/html/input/node/HtmlInputNodeTextParser.class.php
+++ b/wcfsetup/install/files/lib/system/html/input/node/HtmlInputNodeTextParser.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\html\input\node;
 use wcf\data\bbcode\media\provider\BBCodeMediaProvider;
 use wcf\data\smiley\Smiley;
diff --git a/wcfsetup/install/files/lib/system/html/input/node/HtmlInputNodeWoltlabMetacode.class.php b/wcfsetup/install/files/lib/system/html/input/node/HtmlInputNodeWoltlabMetacode.class.php
index 6881010ebc..fd3ab410c0 100644
--- a/wcfsetup/install/files/lib/system/html/input/node/HtmlInputNodeWoltlabMetacode.class.php
+++ b/wcfsetup/install/files/lib/system/html/input/node/HtmlInputNodeWoltlabMetacode.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\html\input\node;
 use wcf\data\bbcode\BBCodeCache;
 use wcf\system\bbcode\BBCodeHandler;
diff --git a/wcfsetup/install/files/lib/system/html/input/node/HtmlInputNodeWoltlabMetacodeMarker.class.php b/wcfsetup/install/files/lib/system/html/input/node/HtmlInputNodeWoltlabMetacodeMarker.class.php
index 699fc4ba28..5e365e5134 100644
--- a/wcfsetup/install/files/lib/system/html/input/node/HtmlInputNodeWoltlabMetacodeMarker.class.php
+++ b/wcfsetup/install/files/lib/system/html/input/node/HtmlInputNodeWoltlabMetacodeMarker.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\html\input\node;
 use wcf\system\bbcode\BBCodeHandler;
 use wcf\system\bbcode\HtmlBBCodeParser;
diff --git a/wcfsetup/install/files/lib/system/html/input/node/IHtmlInputNode.class.php b/wcfsetup/install/files/lib/system/html/input/node/IHtmlInputNode.class.php
index d3b3fca24c..20a6171834 100644
--- a/wcfsetup/install/files/lib/system/html/input/node/IHtmlInputNode.class.php
+++ b/wcfsetup/install/files/lib/system/html/input/node/IHtmlInputNode.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\html\input\node;
 use wcf\system\html\node\IHtmlNode;
 
diff --git a/wcfsetup/install/files/lib/system/html/metacode/converter/AbstractMetacodeConverter.class.php b/wcfsetup/install/files/lib/system/html/metacode/converter/AbstractMetacodeConverter.class.php
index 3c6d9560b6..b165ce5b44 100644
--- a/wcfsetup/install/files/lib/system/html/metacode/converter/AbstractMetacodeConverter.class.php
+++ b/wcfsetup/install/files/lib/system/html/metacode/converter/AbstractMetacodeConverter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\html\metacode\converter;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/html/metacode/converter/CodeMetacodeConverter.class.php b/wcfsetup/install/files/lib/system/html/metacode/converter/CodeMetacodeConverter.class.php
index a365f6bccb..bfd3204e7d 100644
--- a/wcfsetup/install/files/lib/system/html/metacode/converter/CodeMetacodeConverter.class.php
+++ b/wcfsetup/install/files/lib/system/html/metacode/converter/CodeMetacodeConverter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\html\metacode\converter;
 use wcf\util\DOMUtil;
 use wcf\util\StringUtil;
diff --git a/wcfsetup/install/files/lib/system/html/metacode/converter/ColorMetacodeConverter.class.php b/wcfsetup/install/files/lib/system/html/metacode/converter/ColorMetacodeConverter.class.php
index 7604246e4b..0e865775a0 100644
--- a/wcfsetup/install/files/lib/system/html/metacode/converter/ColorMetacodeConverter.class.php
+++ b/wcfsetup/install/files/lib/system/html/metacode/converter/ColorMetacodeConverter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\html\metacode\converter;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/html/metacode/converter/FontMetacodeConverter.class.php b/wcfsetup/install/files/lib/system/html/metacode/converter/FontMetacodeConverter.class.php
index e502180173..28c0105d6c 100644
--- a/wcfsetup/install/files/lib/system/html/metacode/converter/FontMetacodeConverter.class.php
+++ b/wcfsetup/install/files/lib/system/html/metacode/converter/FontMetacodeConverter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\html\metacode\converter;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/html/metacode/converter/HtmlMetacodeConverter.class.php b/wcfsetup/install/files/lib/system/html/metacode/converter/HtmlMetacodeConverter.class.php
index aef88d2518..77f01ac28f 100644
--- a/wcfsetup/install/files/lib/system/html/metacode/converter/HtmlMetacodeConverter.class.php
+++ b/wcfsetup/install/files/lib/system/html/metacode/converter/HtmlMetacodeConverter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\html\metacode\converter;
 use wcf\util\DOMUtil;
 use wcf\util\StringUtil;
diff --git a/wcfsetup/install/files/lib/system/html/metacode/converter/IMetacodeConverter.class.php b/wcfsetup/install/files/lib/system/html/metacode/converter/IMetacodeConverter.class.php
index 24f5d4f849..b77de22040 100644
--- a/wcfsetup/install/files/lib/system/html/metacode/converter/IMetacodeConverter.class.php
+++ b/wcfsetup/install/files/lib/system/html/metacode/converter/IMetacodeConverter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\html\metacode\converter;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/html/metacode/converter/ImgMetacodeConverter.class.php b/wcfsetup/install/files/lib/system/html/metacode/converter/ImgMetacodeConverter.class.php
index 782d7ff7a4..7750aeee69 100644
--- a/wcfsetup/install/files/lib/system/html/metacode/converter/ImgMetacodeConverter.class.php
+++ b/wcfsetup/install/files/lib/system/html/metacode/converter/ImgMetacodeConverter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\html\metacode\converter;
 use wcf\util\StringUtil;
 
diff --git a/wcfsetup/install/files/lib/system/html/metacode/converter/ListMetacodeConverter.class.php b/wcfsetup/install/files/lib/system/html/metacode/converter/ListMetacodeConverter.class.php
index cb73977302..a5e7d50a3a 100644
--- a/wcfsetup/install/files/lib/system/html/metacode/converter/ListMetacodeConverter.class.php
+++ b/wcfsetup/install/files/lib/system/html/metacode/converter/ListMetacodeConverter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\html\metacode\converter;
 use wcf\util\DOMUtil;
 use wcf\util\StringUtil;
diff --git a/wcfsetup/install/files/lib/system/html/metacode/converter/QuoteMetacodeConverter.class.php b/wcfsetup/install/files/lib/system/html/metacode/converter/QuoteMetacodeConverter.class.php
index 857123ecaa..d84fc98163 100644
--- a/wcfsetup/install/files/lib/system/html/metacode/converter/QuoteMetacodeConverter.class.php
+++ b/wcfsetup/install/files/lib/system/html/metacode/converter/QuoteMetacodeConverter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\html\metacode\converter;
 use wcf\util\StringUtil;
 
diff --git a/wcfsetup/install/files/lib/system/html/metacode/converter/SizeMetacodeConverter.class.php b/wcfsetup/install/files/lib/system/html/metacode/converter/SizeMetacodeConverter.class.php
index d9b014797f..25d303b267 100644
--- a/wcfsetup/install/files/lib/system/html/metacode/converter/SizeMetacodeConverter.class.php
+++ b/wcfsetup/install/files/lib/system/html/metacode/converter/SizeMetacodeConverter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\html\metacode\converter;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/html/metacode/converter/SpoilerMetacodeConverter.class.php b/wcfsetup/install/files/lib/system/html/metacode/converter/SpoilerMetacodeConverter.class.php
index 8fa902f7ea..a366544607 100644
--- a/wcfsetup/install/files/lib/system/html/metacode/converter/SpoilerMetacodeConverter.class.php
+++ b/wcfsetup/install/files/lib/system/html/metacode/converter/SpoilerMetacodeConverter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\html\metacode\converter;
 use wcf\util\StringUtil;
 
diff --git a/wcfsetup/install/files/lib/system/html/metacode/converter/TableMetacodeConverter.class.php b/wcfsetup/install/files/lib/system/html/metacode/converter/TableMetacodeConverter.class.php
index 2dc83cd359..08853b2628 100644
--- a/wcfsetup/install/files/lib/system/html/metacode/converter/TableMetacodeConverter.class.php
+++ b/wcfsetup/install/files/lib/system/html/metacode/converter/TableMetacodeConverter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\html\metacode\converter;
 use wcf\util\DOMUtil;
 use wcf\util\StringUtil;
diff --git a/wcfsetup/install/files/lib/system/html/metacode/converter/UrlMetacodeConverter.class.php b/wcfsetup/install/files/lib/system/html/metacode/converter/UrlMetacodeConverter.class.php
index a6cac83491..029894b7f5 100644
--- a/wcfsetup/install/files/lib/system/html/metacode/converter/UrlMetacodeConverter.class.php
+++ b/wcfsetup/install/files/lib/system/html/metacode/converter/UrlMetacodeConverter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\html\metacode\converter;
 use wcf\util\StringUtil;
 
diff --git a/wcfsetup/install/files/lib/system/html/node/AbstractHtmlNode.class.php b/wcfsetup/install/files/lib/system/html/node/AbstractHtmlNode.class.php
index 42c7adeb8e..88bb496516 100644
--- a/wcfsetup/install/files/lib/system/html/node/AbstractHtmlNode.class.php
+++ b/wcfsetup/install/files/lib/system/html/node/AbstractHtmlNode.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\html\node;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/html/node/AbstractHtmlNodeProcessor.class.php b/wcfsetup/install/files/lib/system/html/node/AbstractHtmlNodeProcessor.class.php
index bd1be47501..3947a06e1c 100644
--- a/wcfsetup/install/files/lib/system/html/node/AbstractHtmlNodeProcessor.class.php
+++ b/wcfsetup/install/files/lib/system/html/node/AbstractHtmlNodeProcessor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\html\node;
 use wcf\system\exception\SystemException;
 use wcf\system\html\IHtmlProcessor;
diff --git a/wcfsetup/install/files/lib/system/html/node/IHtmlNode.class.php b/wcfsetup/install/files/lib/system/html/node/IHtmlNode.class.php
index e753a593b0..8c4ece7a2c 100644
--- a/wcfsetup/install/files/lib/system/html/node/IHtmlNode.class.php
+++ b/wcfsetup/install/files/lib/system/html/node/IHtmlNode.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\html\node;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/html/node/IHtmlNodeProcessor.class.php b/wcfsetup/install/files/lib/system/html/node/IHtmlNodeProcessor.class.php
index 6bd5168341..3ff21ea032 100644
--- a/wcfsetup/install/files/lib/system/html/node/IHtmlNodeProcessor.class.php
+++ b/wcfsetup/install/files/lib/system/html/node/IHtmlNodeProcessor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\html\node;
 use wcf\system\html\IHtmlProcessor;
 
diff --git a/wcfsetup/install/files/lib/system/html/output/AmpHtmlOutputProcessor.class.php b/wcfsetup/install/files/lib/system/html/output/AmpHtmlOutputProcessor.class.php
index f996b66f70..9270360b12 100644
--- a/wcfsetup/install/files/lib/system/html/output/AmpHtmlOutputProcessor.class.php
+++ b/wcfsetup/install/files/lib/system/html/output/AmpHtmlOutputProcessor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\html\output;
 use wcf\system\bbcode\HtmlBBCodeParser;
 use wcf\util\DOMUtil;
diff --git a/wcfsetup/install/files/lib/system/html/output/HtmlOutputProcessor.class.php b/wcfsetup/install/files/lib/system/html/output/HtmlOutputProcessor.class.php
index 7bf37b15b5..d2a28ac487 100644
--- a/wcfsetup/install/files/lib/system/html/output/HtmlOutputProcessor.class.php
+++ b/wcfsetup/install/files/lib/system/html/output/HtmlOutputProcessor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\html\output;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\system\html\output\node\HtmlOutputNodeProcessor;
diff --git a/wcfsetup/install/files/lib/system/html/output/node/AbstractHtmlOutputNode.class.php b/wcfsetup/install/files/lib/system/html/output/node/AbstractHtmlOutputNode.class.php
index 93f3f0b761..1d3457b7ff 100644
--- a/wcfsetup/install/files/lib/system/html/output/node/AbstractHtmlOutputNode.class.php
+++ b/wcfsetup/install/files/lib/system/html/output/node/AbstractHtmlOutputNode.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\html\output\node;
 use wcf\system\html\node\AbstractHtmlNode;
 use wcf\system\html\node\AbstractHtmlNodeProcessor;
diff --git a/wcfsetup/install/files/lib/system/html/output/node/HtmlOutputNodeA.class.php b/wcfsetup/install/files/lib/system/html/output/node/HtmlOutputNodeA.class.php
index bfc7cc7172..4d03b03d4e 100644
--- a/wcfsetup/install/files/lib/system/html/output/node/HtmlOutputNodeA.class.php
+++ b/wcfsetup/install/files/lib/system/html/output/node/HtmlOutputNodeA.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\html\output\node;
 use wcf\system\application\ApplicationHandler;
 use wcf\system\html\node\AbstractHtmlNodeProcessor;
diff --git a/wcfsetup/install/files/lib/system/html/output/node/HtmlOutputNodeImg.class.php b/wcfsetup/install/files/lib/system/html/output/node/HtmlOutputNodeImg.class.php
index 76e2f2e5a9..b4148ed8c3 100644
--- a/wcfsetup/install/files/lib/system/html/output/node/HtmlOutputNodeImg.class.php
+++ b/wcfsetup/install/files/lib/system/html/output/node/HtmlOutputNodeImg.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\html\output\node;
 use wcf\data\smiley\Smiley;
 use wcf\data\smiley\SmileyCache;
diff --git a/wcfsetup/install/files/lib/system/html/output/node/HtmlOutputNodePre.class.php b/wcfsetup/install/files/lib/system/html/output/node/HtmlOutputNodePre.class.php
index 0f2f31bac6..acd44e4700 100644
--- a/wcfsetup/install/files/lib/system/html/output/node/HtmlOutputNodePre.class.php
+++ b/wcfsetup/install/files/lib/system/html/output/node/HtmlOutputNodePre.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\html\output\node;
 use wcf\system\bbcode\highlighter\BashHighlighter;
 use wcf\system\bbcode\highlighter\CHighlighter;
diff --git a/wcfsetup/install/files/lib/system/html/output/node/HtmlOutputNodeProcessor.class.php b/wcfsetup/install/files/lib/system/html/output/node/HtmlOutputNodeProcessor.class.php
index 759a30c8c3..dc3a6dada1 100644
--- a/wcfsetup/install/files/lib/system/html/output/node/HtmlOutputNodeProcessor.class.php
+++ b/wcfsetup/install/files/lib/system/html/output/node/HtmlOutputNodeProcessor.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\html\output\node;
 use wcf\system\bbcode\HtmlBBCodeParser;
 use wcf\system\bbcode\KeywordHighlighter;
diff --git a/wcfsetup/install/files/lib/system/html/output/node/HtmlOutputNodeTable.class.php b/wcfsetup/install/files/lib/system/html/output/node/HtmlOutputNodeTable.class.php
index 8a9aa9d908..59a8097c38 100644
--- a/wcfsetup/install/files/lib/system/html/output/node/HtmlOutputNodeTable.class.php
+++ b/wcfsetup/install/files/lib/system/html/output/node/HtmlOutputNodeTable.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\html\output\node;
 use wcf\system\html\node\AbstractHtmlNodeProcessor;
 
diff --git a/wcfsetup/install/files/lib/system/html/output/node/HtmlOutputNodeWoltlabMetacode.class.php b/wcfsetup/install/files/lib/system/html/output/node/HtmlOutputNodeWoltlabMetacode.class.php
index 35d114cc8f..011e6b0627 100644
--- a/wcfsetup/install/files/lib/system/html/output/node/HtmlOutputNodeWoltlabMetacode.class.php
+++ b/wcfsetup/install/files/lib/system/html/output/node/HtmlOutputNodeWoltlabMetacode.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\html\output\node;
 use wcf\system\bbcode\HtmlBBCodeParser;
 use wcf\system\html\node\AbstractHtmlNodeProcessor;
diff --git a/wcfsetup/install/files/lib/system/html/output/node/HtmlOutputNodeWoltlabQuote.class.php b/wcfsetup/install/files/lib/system/html/output/node/HtmlOutputNodeWoltlabQuote.class.php
index cb13819929..6f8e08d289 100644
--- a/wcfsetup/install/files/lib/system/html/output/node/HtmlOutputNodeWoltlabQuote.class.php
+++ b/wcfsetup/install/files/lib/system/html/output/node/HtmlOutputNodeWoltlabQuote.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\html\output\node;
 use wcf\system\application\ApplicationHandler;
 use wcf\system\html\node\AbstractHtmlNodeProcessor;
diff --git a/wcfsetup/install/files/lib/system/html/output/node/HtmlOutputNodeWoltlabSpoiler.class.php b/wcfsetup/install/files/lib/system/html/output/node/HtmlOutputNodeWoltlabSpoiler.class.php
index 1e29d69e2d..8719be69b9 100644
--- a/wcfsetup/install/files/lib/system/html/output/node/HtmlOutputNodeWoltlabSpoiler.class.php
+++ b/wcfsetup/install/files/lib/system/html/output/node/HtmlOutputNodeWoltlabSpoiler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\html\output\node;
 use wcf\system\bbcode\HtmlBBCodeParser;
 use wcf\system\html\node\AbstractHtmlNodeProcessor;
diff --git a/wcfsetup/install/files/lib/system/html/output/node/IHtmlOutputNode.class.php b/wcfsetup/install/files/lib/system/html/output/node/IHtmlOutputNode.class.php
index bdf5385e49..148aa17aea 100644
--- a/wcfsetup/install/files/lib/system/html/output/node/IHtmlOutputNode.class.php
+++ b/wcfsetup/install/files/lib/system/html/output/node/IHtmlOutputNode.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\html\output\node;
 use wcf\system\html\node\IHtmlNode;
 
diff --git a/wcfsetup/install/files/lib/system/html/simple/HtmlSimpleParser.class.php b/wcfsetup/install/files/lib/system/html/simple/HtmlSimpleParser.class.php
index d0960d9633..101fa08279 100644
--- a/wcfsetup/install/files/lib/system/html/simple/HtmlSimpleParser.class.php
+++ b/wcfsetup/install/files/lib/system/html/simple/HtmlSimpleParser.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\html\simple;
 use wcf\system\message\embedded\object\ISimpleMessageEmbeddedObjectHandler;
 use wcf\system\message\embedded\object\MessageEmbeddedObjectManager;
diff --git a/wcfsetup/install/files/lib/system/image/ImageHandler.class.php b/wcfsetup/install/files/lib/system/image/ImageHandler.class.php
index eab06a52b3..d3ca4274bb 100644
--- a/wcfsetup/install/files/lib/system/image/ImageHandler.class.php
+++ b/wcfsetup/install/files/lib/system/image/ImageHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\image;
 use wcf\system\exception\SystemException;
 use wcf\system\image\adapter\GDImageAdapter;
diff --git a/wcfsetup/install/files/lib/system/image/adapter/GDImageAdapter.class.php b/wcfsetup/install/files/lib/system/image/adapter/GDImageAdapter.class.php
index 1777e0f052..1d35a3fc67 100644
--- a/wcfsetup/install/files/lib/system/image/adapter/GDImageAdapter.class.php
+++ b/wcfsetup/install/files/lib/system/image/adapter/GDImageAdapter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\image\adapter;
 use wcf\system\exception\SystemException;
 use wcf\util\StringUtil;
diff --git a/wcfsetup/install/files/lib/system/image/adapter/IImageAdapter.class.php b/wcfsetup/install/files/lib/system/image/adapter/IImageAdapter.class.php
index 72879f665b..59730862d1 100644
--- a/wcfsetup/install/files/lib/system/image/adapter/IImageAdapter.class.php
+++ b/wcfsetup/install/files/lib/system/image/adapter/IImageAdapter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\image\adapter;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/image/adapter/ImageAdapter.class.php b/wcfsetup/install/files/lib/system/image/adapter/ImageAdapter.class.php
index 0a1e9a49f2..18bc11dbe4 100644
--- a/wcfsetup/install/files/lib/system/image/adapter/ImageAdapter.class.php
+++ b/wcfsetup/install/files/lib/system/image/adapter/ImageAdapter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\image\adapter;
 use wcf\system\exception\SystemException;
 
diff --git a/wcfsetup/install/files/lib/system/image/adapter/ImagickImageAdapter.class.php b/wcfsetup/install/files/lib/system/image/adapter/ImagickImageAdapter.class.php
index a14659ef01..22dca0c877 100644
--- a/wcfsetup/install/files/lib/system/image/adapter/ImagickImageAdapter.class.php
+++ b/wcfsetup/install/files/lib/system/image/adapter/ImagickImageAdapter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\image\adapter;
 use wcf\system\exception\SystemException;
 
diff --git a/wcfsetup/install/files/lib/system/importer/AbstractACLImporter.class.php b/wcfsetup/install/files/lib/system/importer/AbstractACLImporter.class.php
index d51410d780..a40f8283a7 100644
--- a/wcfsetup/install/files/lib/system/importer/AbstractACLImporter.class.php
+++ b/wcfsetup/install/files/lib/system/importer/AbstractACLImporter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\importer;
 use wcf\system\WCF;
 
diff --git a/wcfsetup/install/files/lib/system/importer/AbstractAttachmentImporter.class.php b/wcfsetup/install/files/lib/system/importer/AbstractAttachmentImporter.class.php
index 1ee2315929..50b059545c 100644
--- a/wcfsetup/install/files/lib/system/importer/AbstractAttachmentImporter.class.php
+++ b/wcfsetup/install/files/lib/system/importer/AbstractAttachmentImporter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\importer;
 use wcf\data\attachment\Attachment;
 use wcf\data\attachment\AttachmentEditor;
diff --git a/wcfsetup/install/files/lib/system/importer/AbstractCategoryImporter.class.php b/wcfsetup/install/files/lib/system/importer/AbstractCategoryImporter.class.php
index 21a614656c..04b4e2360d 100644
--- a/wcfsetup/install/files/lib/system/importer/AbstractCategoryImporter.class.php
+++ b/wcfsetup/install/files/lib/system/importer/AbstractCategoryImporter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\importer;
 use wcf\data\category\Category;
 use wcf\data\category\CategoryEditor;
diff --git a/wcfsetup/install/files/lib/system/importer/AbstractCommentImporter.class.php b/wcfsetup/install/files/lib/system/importer/AbstractCommentImporter.class.php
index 889884aeea..9350d0c1b1 100644
--- a/wcfsetup/install/files/lib/system/importer/AbstractCommentImporter.class.php
+++ b/wcfsetup/install/files/lib/system/importer/AbstractCommentImporter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\importer;
 use wcf\data\comment\Comment;
 use wcf\data\comment\CommentEditor;
diff --git a/wcfsetup/install/files/lib/system/importer/AbstractCommentResponseImporter.class.php b/wcfsetup/install/files/lib/system/importer/AbstractCommentResponseImporter.class.php
index 8da0fed368..f18143bfd1 100644
--- a/wcfsetup/install/files/lib/system/importer/AbstractCommentResponseImporter.class.php
+++ b/wcfsetup/install/files/lib/system/importer/AbstractCommentResponseImporter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\importer;
 use wcf\data\comment\response\CommentResponse;
 use wcf\data\comment\response\CommentResponseEditor;
diff --git a/wcfsetup/install/files/lib/system/importer/AbstractImporter.class.php b/wcfsetup/install/files/lib/system/importer/AbstractImporter.class.php
index 7270fad777..12477d418d 100644
--- a/wcfsetup/install/files/lib/system/importer/AbstractImporter.class.php
+++ b/wcfsetup/install/files/lib/system/importer/AbstractImporter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\importer;
 use wcf\data\package\PackageCache;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/system/importer/AbstractLikeImporter.class.php b/wcfsetup/install/files/lib/system/importer/AbstractLikeImporter.class.php
index 5013fa65a9..3a70332592 100644
--- a/wcfsetup/install/files/lib/system/importer/AbstractLikeImporter.class.php
+++ b/wcfsetup/install/files/lib/system/importer/AbstractLikeImporter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\importer;
 use wcf\data\like\Like;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/system/importer/AbstractPollImporter.class.php b/wcfsetup/install/files/lib/system/importer/AbstractPollImporter.class.php
index e14c89e44b..f89e0519ae 100644
--- a/wcfsetup/install/files/lib/system/importer/AbstractPollImporter.class.php
+++ b/wcfsetup/install/files/lib/system/importer/AbstractPollImporter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\importer;
 use wcf\data\poll\Poll;
 use wcf\data\poll\PollEditor;
diff --git a/wcfsetup/install/files/lib/system/importer/AbstractPollOptionImporter.class.php b/wcfsetup/install/files/lib/system/importer/AbstractPollOptionImporter.class.php
index b1bb3c8729..4bf8e64211 100644
--- a/wcfsetup/install/files/lib/system/importer/AbstractPollOptionImporter.class.php
+++ b/wcfsetup/install/files/lib/system/importer/AbstractPollOptionImporter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\importer;
 use wcf\data\poll\option\PollOption;
 use wcf\data\poll\option\PollOptionEditor;
diff --git a/wcfsetup/install/files/lib/system/importer/AbstractPollOptionVoteImporter.class.php b/wcfsetup/install/files/lib/system/importer/AbstractPollOptionVoteImporter.class.php
index 744d4841ec..ac776f4546 100644
--- a/wcfsetup/install/files/lib/system/importer/AbstractPollOptionVoteImporter.class.php
+++ b/wcfsetup/install/files/lib/system/importer/AbstractPollOptionVoteImporter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\importer;
 use wcf\system\WCF;
 
diff --git a/wcfsetup/install/files/lib/system/importer/AbstractWatchedObjectImporter.class.php b/wcfsetup/install/files/lib/system/importer/AbstractWatchedObjectImporter.class.php
index 83df7d1f87..798d9cca8e 100644
--- a/wcfsetup/install/files/lib/system/importer/AbstractWatchedObjectImporter.class.php
+++ b/wcfsetup/install/files/lib/system/importer/AbstractWatchedObjectImporter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\importer;
 use wcf\data\user\object\watch\UserObjectWatch;
 use wcf\data\user\object\watch\UserObjectWatchEditor;
diff --git a/wcfsetup/install/files/lib/system/importer/ArticleCategoryImporter.class.php b/wcfsetup/install/files/lib/system/importer/ArticleCategoryImporter.class.php
index 923203707d..578d3250a9 100644
--- a/wcfsetup/install/files/lib/system/importer/ArticleCategoryImporter.class.php
+++ b/wcfsetup/install/files/lib/system/importer/ArticleCategoryImporter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\importer;
 use wcf\data\object\type\ObjectTypeCache;
 
diff --git a/wcfsetup/install/files/lib/system/importer/ArticleCommentImporter.class.php b/wcfsetup/install/files/lib/system/importer/ArticleCommentImporter.class.php
index c379141fc0..c228deb6f3 100644
--- a/wcfsetup/install/files/lib/system/importer/ArticleCommentImporter.class.php
+++ b/wcfsetup/install/files/lib/system/importer/ArticleCommentImporter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\importer;
 use wcf\data\article\Article;
 use wcf\data\object\type\ObjectTypeCache;
diff --git a/wcfsetup/install/files/lib/system/importer/ArticleCommentResponseImporter.class.php b/wcfsetup/install/files/lib/system/importer/ArticleCommentResponseImporter.class.php
index e1e9f80260..c45a73adbc 100644
--- a/wcfsetup/install/files/lib/system/importer/ArticleCommentResponseImporter.class.php
+++ b/wcfsetup/install/files/lib/system/importer/ArticleCommentResponseImporter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\importer;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/importer/ArticleImporter.class.php b/wcfsetup/install/files/lib/system/importer/ArticleImporter.class.php
index 3c591a3ff4..c6578f65e1 100644
--- a/wcfsetup/install/files/lib/system/importer/ArticleImporter.class.php
+++ b/wcfsetup/install/files/lib/system/importer/ArticleImporter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\importer;
 use wcf\data\article\content\ArticleContentEditor;
 use wcf\data\article\Article;
diff --git a/wcfsetup/install/files/lib/system/importer/IImporter.class.php b/wcfsetup/install/files/lib/system/importer/IImporter.class.php
index 2cd956b5a0..ad8a4e3f7e 100644
--- a/wcfsetup/install/files/lib/system/importer/IImporter.class.php
+++ b/wcfsetup/install/files/lib/system/importer/IImporter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\importer;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/importer/ImportHandler.class.php b/wcfsetup/install/files/lib/system/importer/ImportHandler.class.php
index 8402d8cd1c..79354547a7 100644
--- a/wcfsetup/install/files/lib/system/importer/ImportHandler.class.php
+++ b/wcfsetup/install/files/lib/system/importer/ImportHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\importer;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\system\cache\CacheHandler;
diff --git a/wcfsetup/install/files/lib/system/importer/LabelGroupImporter.class.php b/wcfsetup/install/files/lib/system/importer/LabelGroupImporter.class.php
index 4b7d7d946e..e74edc698f 100644
--- a/wcfsetup/install/files/lib/system/importer/LabelGroupImporter.class.php
+++ b/wcfsetup/install/files/lib/system/importer/LabelGroupImporter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\importer;
 use wcf\data\label\group\LabelGroup;
 use wcf\data\label\group\LabelGroupEditor;
diff --git a/wcfsetup/install/files/lib/system/importer/LabelImporter.class.php b/wcfsetup/install/files/lib/system/importer/LabelImporter.class.php
index 2e8506f8e4..2b93e74eb1 100644
--- a/wcfsetup/install/files/lib/system/importer/LabelImporter.class.php
+++ b/wcfsetup/install/files/lib/system/importer/LabelImporter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\importer;
 use wcf\data\label\Label;
 use wcf\data\label\LabelEditor;
diff --git a/wcfsetup/install/files/lib/system/importer/MediaImporter.class.php b/wcfsetup/install/files/lib/system/importer/MediaImporter.class.php
index 9c0f914f12..2017fc1d2c 100644
--- a/wcfsetup/install/files/lib/system/importer/MediaImporter.class.php
+++ b/wcfsetup/install/files/lib/system/importer/MediaImporter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\importer;
 use wcf\data\media\Media;
 use wcf\data\media\MediaAction;
diff --git a/wcfsetup/install/files/lib/system/importer/SmileyCategoryImporter.class.php b/wcfsetup/install/files/lib/system/importer/SmileyCategoryImporter.class.php
index 6e4297666d..7c89a59475 100644
--- a/wcfsetup/install/files/lib/system/importer/SmileyCategoryImporter.class.php
+++ b/wcfsetup/install/files/lib/system/importer/SmileyCategoryImporter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\importer;
 use wcf\data\object\type\ObjectTypeCache;
 
diff --git a/wcfsetup/install/files/lib/system/importer/SmileyImporter.class.php b/wcfsetup/install/files/lib/system/importer/SmileyImporter.class.php
index 96c3b2153b..51984ea4fd 100644
--- a/wcfsetup/install/files/lib/system/importer/SmileyImporter.class.php
+++ b/wcfsetup/install/files/lib/system/importer/SmileyImporter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\importer;
 use wcf\data\smiley\Smiley;
 use wcf\data\smiley\SmileyEditor;
diff --git a/wcfsetup/install/files/lib/system/importer/TrophyCategoryImporter.class.php b/wcfsetup/install/files/lib/system/importer/TrophyCategoryImporter.class.php
index 8755712309..8ad49548ff 100644
--- a/wcfsetup/install/files/lib/system/importer/TrophyCategoryImporter.class.php
+++ b/wcfsetup/install/files/lib/system/importer/TrophyCategoryImporter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\importer;
 use wcf\data\object\type\ObjectTypeCache;
 
diff --git a/wcfsetup/install/files/lib/system/importer/TrophyImporter.class.php b/wcfsetup/install/files/lib/system/importer/TrophyImporter.class.php
index 79263268c2..cc532f2b11 100644
--- a/wcfsetup/install/files/lib/system/importer/TrophyImporter.class.php
+++ b/wcfsetup/install/files/lib/system/importer/TrophyImporter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\importer;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\data\trophy\Trophy;
diff --git a/wcfsetup/install/files/lib/system/importer/UserAvatarImporter.class.php b/wcfsetup/install/files/lib/system/importer/UserAvatarImporter.class.php
index d753e4a20c..cfdb3400fd 100644
--- a/wcfsetup/install/files/lib/system/importer/UserAvatarImporter.class.php
+++ b/wcfsetup/install/files/lib/system/importer/UserAvatarImporter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\importer;
 use wcf\data\user\avatar\UserAvatar;
 use wcf\data\user\avatar\UserAvatarEditor;
diff --git a/wcfsetup/install/files/lib/system/importer/UserCommentImporter.class.php b/wcfsetup/install/files/lib/system/importer/UserCommentImporter.class.php
index e65758993b..7ce5e75c10 100644
--- a/wcfsetup/install/files/lib/system/importer/UserCommentImporter.class.php
+++ b/wcfsetup/install/files/lib/system/importer/UserCommentImporter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\importer;
 use wcf\data\object\type\ObjectTypeCache;
 
diff --git a/wcfsetup/install/files/lib/system/importer/UserCommentResponseImporter.class.php b/wcfsetup/install/files/lib/system/importer/UserCommentResponseImporter.class.php
index 59ce0066a7..af08deb28f 100644
--- a/wcfsetup/install/files/lib/system/importer/UserCommentResponseImporter.class.php
+++ b/wcfsetup/install/files/lib/system/importer/UserCommentResponseImporter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\importer;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/importer/UserFollowerImporter.class.php b/wcfsetup/install/files/lib/system/importer/UserFollowerImporter.class.php
index 35f6ccd13a..3f30f1951b 100644
--- a/wcfsetup/install/files/lib/system/importer/UserFollowerImporter.class.php
+++ b/wcfsetup/install/files/lib/system/importer/UserFollowerImporter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\importer;
 use wcf\data\user\follow\UserFollow;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/system/importer/UserGroupImporter.class.php b/wcfsetup/install/files/lib/system/importer/UserGroupImporter.class.php
index 0c609fe675..929649f206 100644
--- a/wcfsetup/install/files/lib/system/importer/UserGroupImporter.class.php
+++ b/wcfsetup/install/files/lib/system/importer/UserGroupImporter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\importer;
 use wcf\data\user\group\UserGroup;
 use wcf\data\user\group\UserGroupAction;
diff --git a/wcfsetup/install/files/lib/system/importer/UserImporter.class.php b/wcfsetup/install/files/lib/system/importer/UserImporter.class.php
index 491d2e1ec2..1d1c8cdee3 100644
--- a/wcfsetup/install/files/lib/system/importer/UserImporter.class.php
+++ b/wcfsetup/install/files/lib/system/importer/UserImporter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\importer;
 use wcf\data\user\group\UserGroup;
 use wcf\data\user\option\UserOption;
diff --git a/wcfsetup/install/files/lib/system/importer/UserOptionImporter.class.php b/wcfsetup/install/files/lib/system/importer/UserOptionImporter.class.php
index 66dbf81903..a361161bcd 100644
--- a/wcfsetup/install/files/lib/system/importer/UserOptionImporter.class.php
+++ b/wcfsetup/install/files/lib/system/importer/UserOptionImporter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\importer;
 use wcf\data\user\option\category\UserOptionCategoryEditor;
 use wcf\data\user\option\category\UserOptionCategoryList;
diff --git a/wcfsetup/install/files/lib/system/importer/UserRankImporter.class.php b/wcfsetup/install/files/lib/system/importer/UserRankImporter.class.php
index e1af5740c5..5480069a4d 100644
--- a/wcfsetup/install/files/lib/system/importer/UserRankImporter.class.php
+++ b/wcfsetup/install/files/lib/system/importer/UserRankImporter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\importer;
 use wcf\data\user\group\UserGroup;
 use wcf\data\user\rank\UserRank;
diff --git a/wcfsetup/install/files/lib/system/importer/UserTrophyImporter.class.php b/wcfsetup/install/files/lib/system/importer/UserTrophyImporter.class.php
index 86bc2ac5b7..51478acd0d 100644
--- a/wcfsetup/install/files/lib/system/importer/UserTrophyImporter.class.php
+++ b/wcfsetup/install/files/lib/system/importer/UserTrophyImporter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\importer;
 use wcf\data\user\trophy\UserTrophy;
 use wcf\data\user\trophy\UserTrophyEditor;
diff --git a/wcfsetup/install/files/lib/system/io/AtomicWriter.class.php b/wcfsetup/install/files/lib/system/io/AtomicWriter.class.php
index 366590a63b..cc8a46b88b 100644
--- a/wcfsetup/install/files/lib/system/io/AtomicWriter.class.php
+++ b/wcfsetup/install/files/lib/system/io/AtomicWriter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\io;
 use wcf\system\exception\SystemException;
 use wcf\util\FileUtil;
diff --git a/wcfsetup/install/files/lib/system/io/FTP.class.php b/wcfsetup/install/files/lib/system/io/FTP.class.php
index d5cb5faa55..89e57253f4 100644
--- a/wcfsetup/install/files/lib/system/io/FTP.class.php
+++ b/wcfsetup/install/files/lib/system/io/FTP.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\io;
 use wcf\system\exception\SystemException;
 
diff --git a/wcfsetup/install/files/lib/system/io/File.class.php b/wcfsetup/install/files/lib/system/io/File.class.php
index 1a29e07267..5033ba1a21 100644
--- a/wcfsetup/install/files/lib/system/io/File.class.php
+++ b/wcfsetup/install/files/lib/system/io/File.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\io;
 use wcf\system\exception\SystemException;
 
diff --git a/wcfsetup/install/files/lib/system/io/GZipFile.class.php b/wcfsetup/install/files/lib/system/io/GZipFile.class.php
index 7e40e4f6d1..5d9d313283 100644
--- a/wcfsetup/install/files/lib/system/io/GZipFile.class.php
+++ b/wcfsetup/install/files/lib/system/io/GZipFile.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\io;
 use wcf\system\exception\SystemException;
 
diff --git a/wcfsetup/install/files/lib/system/io/IArchive.class.php b/wcfsetup/install/files/lib/system/io/IArchive.class.php
index 353a845b66..04cf3c7a9b 100644
--- a/wcfsetup/install/files/lib/system/io/IArchive.class.php
+++ b/wcfsetup/install/files/lib/system/io/IArchive.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\io;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/io/RemoteFile.class.php b/wcfsetup/install/files/lib/system/io/RemoteFile.class.php
index 2e8acc33b1..76efc016a0 100644
--- a/wcfsetup/install/files/lib/system/io/RemoteFile.class.php
+++ b/wcfsetup/install/files/lib/system/io/RemoteFile.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\io;
 use wcf\system\exception\SystemException;
 
diff --git a/wcfsetup/install/files/lib/system/io/Tar.class.php b/wcfsetup/install/files/lib/system/io/Tar.class.php
index dfa03f0700..1cb2bf3bbc 100644
--- a/wcfsetup/install/files/lib/system/io/Tar.class.php
+++ b/wcfsetup/install/files/lib/system/io/Tar.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\io;
 use wcf\system\exception\SystemException;
 use wcf\util\FileUtil;
diff --git a/wcfsetup/install/files/lib/system/io/TarWriter.class.php b/wcfsetup/install/files/lib/system/io/TarWriter.class.php
index 9663be75d6..5e20c5e38f 100644
--- a/wcfsetup/install/files/lib/system/io/TarWriter.class.php
+++ b/wcfsetup/install/files/lib/system/io/TarWriter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\io;
 use wcf\system\exception\SystemException;
 use wcf\util\FileUtil;
diff --git a/wcfsetup/install/files/lib/system/io/Zip.class.php b/wcfsetup/install/files/lib/system/io/Zip.class.php
index 84f47ec2de..02a39e32cd 100644
--- a/wcfsetup/install/files/lib/system/io/Zip.class.php
+++ b/wcfsetup/install/files/lib/system/io/Zip.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\io;
 use wcf\system\exception\SystemException;
 use wcf\util\FileUtil;
diff --git a/wcfsetup/install/files/lib/system/io/ZipWriter.class.php b/wcfsetup/install/files/lib/system/io/ZipWriter.class.php
index 792f84f761..dec6195137 100644
--- a/wcfsetup/install/files/lib/system/io/ZipWriter.class.php
+++ b/wcfsetup/install/files/lib/system/io/ZipWriter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\io;
 use wcf\util\FileUtil;
 use wcf\util\StringUtil;
diff --git a/wcfsetup/install/files/lib/system/label/LabelHandler.class.php b/wcfsetup/install/files/lib/system/label/LabelHandler.class.php
index 74022b1cc0..00276fc0b8 100644
--- a/wcfsetup/install/files/lib/system/label/LabelHandler.class.php
+++ b/wcfsetup/install/files/lib/system/label/LabelHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\label;
 use wcf\data\label\group\LabelGroup;
 use wcf\data\label\group\ViewableLabelGroup;
diff --git a/wcfsetup/install/files/lib/system/label/object/AbstractLabelObjectHandler.class.php b/wcfsetup/install/files/lib/system/label/object/AbstractLabelObjectHandler.class.php
index eb13ce7c46..99840f5fe1 100644
--- a/wcfsetup/install/files/lib/system/label/object/AbstractLabelObjectHandler.class.php
+++ b/wcfsetup/install/files/lib/system/label/object/AbstractLabelObjectHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\label\object;
 use wcf\data\label\group\LabelGroup;
 use wcf\data\label\group\ViewableLabelGroup;
diff --git a/wcfsetup/install/files/lib/system/label/object/ArticleLabelObjectHandler.class.php b/wcfsetup/install/files/lib/system/label/object/ArticleLabelObjectHandler.class.php
index 5bccda12c4..97d2cc7883 100644
--- a/wcfsetup/install/files/lib/system/label/object/ArticleLabelObjectHandler.class.php
+++ b/wcfsetup/install/files/lib/system/label/object/ArticleLabelObjectHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\label\object;
 use wcf\system\cache\builder\ArticleCategoryLabelCacheBuilder;
 use wcf\system\label\LabelHandler;
diff --git a/wcfsetup/install/files/lib/system/label/object/ILabelObjectHandler.class.php b/wcfsetup/install/files/lib/system/label/object/ILabelObjectHandler.class.php
index bc339347f1..982a6d8fca 100644
--- a/wcfsetup/install/files/lib/system/label/object/ILabelObjectHandler.class.php
+++ b/wcfsetup/install/files/lib/system/label/object/ILabelObjectHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\label\object;
 use wcf\data\label\group\ViewableLabelGroup;
 use wcf\data\label\Label;
diff --git a/wcfsetup/install/files/lib/system/label/object/type/AbstractLabelObjectTypeHandler.class.php b/wcfsetup/install/files/lib/system/label/object/type/AbstractLabelObjectTypeHandler.class.php
index f1258677f6..ba2f436935 100644
--- a/wcfsetup/install/files/lib/system/label/object/type/AbstractLabelObjectTypeHandler.class.php
+++ b/wcfsetup/install/files/lib/system/label/object/type/AbstractLabelObjectTypeHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\label\object\type;
 use wcf\system\SingletonFactory;
 
diff --git a/wcfsetup/install/files/lib/system/label/object/type/ArticleCategoryLabelObjectTypeHandler.class.php b/wcfsetup/install/files/lib/system/label/object/type/ArticleCategoryLabelObjectTypeHandler.class.php
index 8ed3e2a295..5ca239a94e 100644
--- a/wcfsetup/install/files/lib/system/label/object/type/ArticleCategoryLabelObjectTypeHandler.class.php
+++ b/wcfsetup/install/files/lib/system/label/object/type/ArticleCategoryLabelObjectTypeHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\label\object\type;
 use wcf\data\article\category\ArticleCategoryNode;
 use wcf\data\article\category\ArticleCategoryNodeTree;
diff --git a/wcfsetup/install/files/lib/system/label/object/type/ILabelObjectTypeHandler.class.php b/wcfsetup/install/files/lib/system/label/object/type/ILabelObjectTypeHandler.class.php
index fd6f5f3de2..769ea12922 100644
--- a/wcfsetup/install/files/lib/system/label/object/type/ILabelObjectTypeHandler.class.php
+++ b/wcfsetup/install/files/lib/system/label/object/type/ILabelObjectTypeHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\label\object\type;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/label/object/type/LabelObjectType.class.php b/wcfsetup/install/files/lib/system/label/object/type/LabelObjectType.class.php
index 5520932942..f96010885f 100644
--- a/wcfsetup/install/files/lib/system/label/object/type/LabelObjectType.class.php
+++ b/wcfsetup/install/files/lib/system/label/object/type/LabelObjectType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\label\object\type;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/label/object/type/LabelObjectTypeContainer.class.php b/wcfsetup/install/files/lib/system/label/object/type/LabelObjectTypeContainer.class.php
index cb04dd1ca8..ca2e76cf91 100644
--- a/wcfsetup/install/files/lib/system/label/object/type/LabelObjectTypeContainer.class.php
+++ b/wcfsetup/install/files/lib/system/label/object/type/LabelObjectTypeContainer.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\label\object\type;
 use wcf\data\object\type\ObjectTypeCache;
 
diff --git a/wcfsetup/install/files/lib/system/language/I18nHandler.class.php b/wcfsetup/install/files/lib/system/language/I18nHandler.class.php
index 185f7b1ee6..3db849e485 100644
--- a/wcfsetup/install/files/lib/system/language/I18nHandler.class.php
+++ b/wcfsetup/install/files/lib/system/language/I18nHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\language;
 use wcf\data\language\Language;
 use wcf\system\database\util\PreparedStatementConditionBuilder;
diff --git a/wcfsetup/install/files/lib/system/language/I18nValue.class.php b/wcfsetup/install/files/lib/system/language/I18nValue.class.php
index 16c975e41f..9235e303bd 100644
--- a/wcfsetup/install/files/lib/system/language/I18nValue.class.php
+++ b/wcfsetup/install/files/lib/system/language/I18nValue.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\language;
 use wcf\data\package\PackageCache;
 
diff --git a/wcfsetup/install/files/lib/system/language/LanguageFactory.class.php b/wcfsetup/install/files/lib/system/language/LanguageFactory.class.php
index 33306daf8b..e3ebc1db5a 100644
--- a/wcfsetup/install/files/lib/system/language/LanguageFactory.class.php
+++ b/wcfsetup/install/files/lib/system/language/LanguageFactory.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\language;
 use wcf\data\language\category\LanguageCategory;
 use wcf\data\language\Language;
diff --git a/wcfsetup/install/files/lib/system/like/IViewableLikeProvider.class.php b/wcfsetup/install/files/lib/system/like/IViewableLikeProvider.class.php
index 2bbf77c5a6..c36aa6506f 100644
--- a/wcfsetup/install/files/lib/system/like/IViewableLikeProvider.class.php
+++ b/wcfsetup/install/files/lib/system/like/IViewableLikeProvider.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\like;
 use wcf\data\like\ViewableLike;
 
diff --git a/wcfsetup/install/files/lib/system/like/LikeHandler.class.php b/wcfsetup/install/files/lib/system/like/LikeHandler.class.php
index a7466c811a..1e0d90ab1d 100644
--- a/wcfsetup/install/files/lib/system/like/LikeHandler.class.php
+++ b/wcfsetup/install/files/lib/system/like/LikeHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\like;
 use wcf\data\like\object\ILikeObject;
 use wcf\data\like\object\LikeObject;
diff --git a/wcfsetup/install/files/lib/system/log/modification/AbstractModificationLogHandler.class.php b/wcfsetup/install/files/lib/system/log/modification/AbstractModificationLogHandler.class.php
index a7bc4ab13a..ff103380da 100644
--- a/wcfsetup/install/files/lib/system/log/modification/AbstractModificationLogHandler.class.php
+++ b/wcfsetup/install/files/lib/system/log/modification/AbstractModificationLogHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\log\modification;
 use wcf\data\modification\log\ModificationLog;
 use wcf\data\modification\log\ModificationLogAction;
diff --git a/wcfsetup/install/files/lib/system/log/modification/ModificationLogHandler.class.php b/wcfsetup/install/files/lib/system/log/modification/ModificationLogHandler.class.php
index d511f50161..aecea48bd3 100644
--- a/wcfsetup/install/files/lib/system/log/modification/ModificationLogHandler.class.php
+++ b/wcfsetup/install/files/lib/system/log/modification/ModificationLogHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\log\modification;
 use wcf\data\modification\log\ModificationLog;
 use wcf\data\modification\log\ModificationLogAction;
diff --git a/wcfsetup/install/files/lib/system/mail/DebugMailSender.class.php b/wcfsetup/install/files/lib/system/mail/DebugMailSender.class.php
index a9a25bf236..e2cf92371b 100644
--- a/wcfsetup/install/files/lib/system/mail/DebugMailSender.class.php
+++ b/wcfsetup/install/files/lib/system/mail/DebugMailSender.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\mail;
 use wcf\system\io\File;
 
diff --git a/wcfsetup/install/files/lib/system/mail/Mail.class.php b/wcfsetup/install/files/lib/system/mail/Mail.class.php
index 2003c0b5f0..585c0df29c 100644
--- a/wcfsetup/install/files/lib/system/mail/Mail.class.php
+++ b/wcfsetup/install/files/lib/system/mail/Mail.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\mail;
 use wcf\data\language\Language;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/system/mail/MailSender.class.php b/wcfsetup/install/files/lib/system/mail/MailSender.class.php
index 7294a6d5e6..9a8fa5dac7 100644
--- a/wcfsetup/install/files/lib/system/mail/MailSender.class.php
+++ b/wcfsetup/install/files/lib/system/mail/MailSender.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\mail;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/mail/PHPMailSender.class.php b/wcfsetup/install/files/lib/system/mail/PHPMailSender.class.php
index e99133f4f8..77597b3c3f 100644
--- a/wcfsetup/install/files/lib/system/mail/PHPMailSender.class.php
+++ b/wcfsetup/install/files/lib/system/mail/PHPMailSender.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\mail;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/mail/SMTPMailSender.class.php b/wcfsetup/install/files/lib/system/mail/SMTPMailSender.class.php
index ca8ce6ccae..e87b15bb7f 100644
--- a/wcfsetup/install/files/lib/system/mail/SMTPMailSender.class.php
+++ b/wcfsetup/install/files/lib/system/mail/SMTPMailSender.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\mail;
 use wcf\system\exception\SystemException;
 use wcf\system\io\RemoteFile;
diff --git a/wcfsetup/install/files/lib/system/menu/ITreeMenuItem.class.php b/wcfsetup/install/files/lib/system/menu/ITreeMenuItem.class.php
index 7c4f1cb51b..9f3f87a9ba 100644
--- a/wcfsetup/install/files/lib/system/menu/ITreeMenuItem.class.php
+++ b/wcfsetup/install/files/lib/system/menu/ITreeMenuItem.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\menu;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/menu/TreeMenu.class.php b/wcfsetup/install/files/lib/system/menu/TreeMenu.class.php
index 9426a1d8ba..dbd5582aa6 100644
--- a/wcfsetup/install/files/lib/system/menu/TreeMenu.class.php
+++ b/wcfsetup/install/files/lib/system/menu/TreeMenu.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\menu;
 use wcf\system\event\EventHandler;
 use wcf\system\SingletonFactory;
diff --git a/wcfsetup/install/files/lib/system/menu/acp/ACPMenu.class.php b/wcfsetup/install/files/lib/system/menu/acp/ACPMenu.class.php
index 83bbe663ad..e660c11402 100644
--- a/wcfsetup/install/files/lib/system/menu/acp/ACPMenu.class.php
+++ b/wcfsetup/install/files/lib/system/menu/acp/ACPMenu.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\menu\acp;
 use wcf\system\cache\builder\ACPMenuCacheBuilder;
 use wcf\system\menu\TreeMenu;
diff --git a/wcfsetup/install/files/lib/system/menu/user/DefaultUserMenuItemProvider.class.php b/wcfsetup/install/files/lib/system/menu/user/DefaultUserMenuItemProvider.class.php
index b7fa5d87e6..6a05804dd9 100644
--- a/wcfsetup/install/files/lib/system/menu/user/DefaultUserMenuItemProvider.class.php
+++ b/wcfsetup/install/files/lib/system/menu/user/DefaultUserMenuItemProvider.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\menu\user;
 use wcf\data\user\menu\item\UserMenuItem;
 use wcf\data\DatabaseObjectDecorator;
diff --git a/wcfsetup/install/files/lib/system/menu/user/IUserMenuItemProvider.class.php b/wcfsetup/install/files/lib/system/menu/user/IUserMenuItemProvider.class.php
index 7a2e1ab8c2..7c81a69f96 100644
--- a/wcfsetup/install/files/lib/system/menu/user/IUserMenuItemProvider.class.php
+++ b/wcfsetup/install/files/lib/system/menu/user/IUserMenuItemProvider.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\menu\user;
 use wcf\data\IDatabaseObjectProcessor;
 
diff --git a/wcfsetup/install/files/lib/system/menu/user/UserMenu.class.php b/wcfsetup/install/files/lib/system/menu/user/UserMenu.class.php
index 86ef66d31c..e1854174c5 100644
--- a/wcfsetup/install/files/lib/system/menu/user/UserMenu.class.php
+++ b/wcfsetup/install/files/lib/system/menu/user/UserMenu.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\menu\user;
 use wcf\data\user\menu\item\UserMenuItem;
 use wcf\system\cache\builder\UserMenuCacheBuilder;
diff --git a/wcfsetup/install/files/lib/system/menu/user/profile/UserProfileMenu.class.php b/wcfsetup/install/files/lib/system/menu/user/profile/UserProfileMenu.class.php
index 49ba803bbc..d2361a1d76 100644
--- a/wcfsetup/install/files/lib/system/menu/user/profile/UserProfileMenu.class.php
+++ b/wcfsetup/install/files/lib/system/menu/user/profile/UserProfileMenu.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\menu\user\profile;
 use wcf\data\user\profile\menu\item\UserProfileMenuItem;
 use wcf\system\cache\builder\UserProfileMenuCacheBuilder;
diff --git a/wcfsetup/install/files/lib/system/menu/user/profile/content/AboutUserProfileMenuContent.class.php b/wcfsetup/install/files/lib/system/menu/user/profile/content/AboutUserProfileMenuContent.class.php
index 3e6e55f560..60f88b5547 100644
--- a/wcfsetup/install/files/lib/system/menu/user/profile/content/AboutUserProfileMenuContent.class.php
+++ b/wcfsetup/install/files/lib/system/menu/user/profile/content/AboutUserProfileMenuContent.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\menu\user\profile\content;
 use wcf\data\user\User;
 use wcf\system\option\user\UserOptionHandler;
diff --git a/wcfsetup/install/files/lib/system/menu/user/profile/content/CommentUserProfileMenuContent.class.php b/wcfsetup/install/files/lib/system/menu/user/profile/content/CommentUserProfileMenuContent.class.php
index 763793456c..fb4e1023e8 100644
--- a/wcfsetup/install/files/lib/system/menu/user/profile/content/CommentUserProfileMenuContent.class.php
+++ b/wcfsetup/install/files/lib/system/menu/user/profile/content/CommentUserProfileMenuContent.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\menu\user\profile\content;
 use wcf\system\comment\CommentHandler;
 use wcf\system\SingletonFactory;
diff --git a/wcfsetup/install/files/lib/system/menu/user/profile/content/IUserProfileMenuContent.class.php b/wcfsetup/install/files/lib/system/menu/user/profile/content/IUserProfileMenuContent.class.php
index 5046bf2969..8c585d332d 100644
--- a/wcfsetup/install/files/lib/system/menu/user/profile/content/IUserProfileMenuContent.class.php
+++ b/wcfsetup/install/files/lib/system/menu/user/profile/content/IUserProfileMenuContent.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\menu\user\profile\content;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/menu/user/profile/content/LikesUserProfileMenuContent.class.php b/wcfsetup/install/files/lib/system/menu/user/profile/content/LikesUserProfileMenuContent.class.php
index 5b4013b575..2c9b2427e2 100644
--- a/wcfsetup/install/files/lib/system/menu/user/profile/content/LikesUserProfileMenuContent.class.php
+++ b/wcfsetup/install/files/lib/system/menu/user/profile/content/LikesUserProfileMenuContent.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\menu\user\profile\content;
 use wcf\data\like\Like;
 use wcf\data\like\ViewableLikeList;
diff --git a/wcfsetup/install/files/lib/system/menu/user/profile/content/RecentActivityUserProfileMenuContent.class.php b/wcfsetup/install/files/lib/system/menu/user/profile/content/RecentActivityUserProfileMenuContent.class.php
index 415b390a61..28f62a53a0 100644
--- a/wcfsetup/install/files/lib/system/menu/user/profile/content/RecentActivityUserProfileMenuContent.class.php
+++ b/wcfsetup/install/files/lib/system/menu/user/profile/content/RecentActivityUserProfileMenuContent.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\menu\user\profile\content;
 use wcf\data\user\activity\event\ViewableUserActivityEventList;
 use wcf\system\user\activity\event\UserActivityEventHandler;
diff --git a/wcfsetup/install/files/lib/system/message/QuickReplyManager.class.php b/wcfsetup/install/files/lib/system/message/QuickReplyManager.class.php
index af028773db..e503a47610 100644
--- a/wcfsetup/install/files/lib/system/message/QuickReplyManager.class.php
+++ b/wcfsetup/install/files/lib/system/message/QuickReplyManager.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\message;
 use wcf\data\DatabaseObjectDecorator;
 use wcf\data\IAttachmentMessageQuickReplyAction;
diff --git a/wcfsetup/install/files/lib/system/message/censorship/Censorship.class.php b/wcfsetup/install/files/lib/system/message/censorship/Censorship.class.php
index d79a590ab1..4cba79bcdc 100644
--- a/wcfsetup/install/files/lib/system/message/censorship/Censorship.class.php
+++ b/wcfsetup/install/files/lib/system/message/censorship/Censorship.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\message\censorship;
 use wcf\system\SingletonFactory;
 use wcf\util\StringUtil;
diff --git a/wcfsetup/install/files/lib/system/message/embedded/object/AbstractMessageEmbeddedObjectHandler.class.php b/wcfsetup/install/files/lib/system/message/embedded/object/AbstractMessageEmbeddedObjectHandler.class.php
index 12b8b1ffb7..c645018cf6 100644
--- a/wcfsetup/install/files/lib/system/message/embedded/object/AbstractMessageEmbeddedObjectHandler.class.php
+++ b/wcfsetup/install/files/lib/system/message/embedded/object/AbstractMessageEmbeddedObjectHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\message\embedded\object;
 use wcf\data\object\type\ObjectType;
 use wcf\data\DatabaseObjectDecorator;
diff --git a/wcfsetup/install/files/lib/system/message/embedded/object/AbstractSimpleMessageEmbeddedObjectHandler.class.php b/wcfsetup/install/files/lib/system/message/embedded/object/AbstractSimpleMessageEmbeddedObjectHandler.class.php
index 37d1060306..00a1397c72 100644
--- a/wcfsetup/install/files/lib/system/message/embedded/object/AbstractSimpleMessageEmbeddedObjectHandler.class.php
+++ b/wcfsetup/install/files/lib/system/message/embedded/object/AbstractSimpleMessageEmbeddedObjectHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\message\embedded\object;
 use wcf\system\html\input\HtmlInputProcessor;
 
diff --git a/wcfsetup/install/files/lib/system/message/embedded/object/AttachmentMessageEmbeddedObjectHandler.class.php b/wcfsetup/install/files/lib/system/message/embedded/object/AttachmentMessageEmbeddedObjectHandler.class.php
index a66d831ec0..3d276f927b 100644
--- a/wcfsetup/install/files/lib/system/message/embedded/object/AttachmentMessageEmbeddedObjectHandler.class.php
+++ b/wcfsetup/install/files/lib/system/message/embedded/object/AttachmentMessageEmbeddedObjectHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\message\embedded\object;
 use wcf\data\attachment\AttachmentList;
 use wcf\data\object\type\ObjectTypeCache;
diff --git a/wcfsetup/install/files/lib/system/message/embedded/object/IMessageEmbeddedObjectHandler.class.php b/wcfsetup/install/files/lib/system/message/embedded/object/IMessageEmbeddedObjectHandler.class.php
index 511048dc65..cce2c8cbbe 100644
--- a/wcfsetup/install/files/lib/system/message/embedded/object/IMessageEmbeddedObjectHandler.class.php
+++ b/wcfsetup/install/files/lib/system/message/embedded/object/IMessageEmbeddedObjectHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\message\embedded\object;
 use wcf\data\DatabaseObject;
 use wcf\system\html\input\HtmlInputProcessor;
diff --git a/wcfsetup/install/files/lib/system/message/embedded/object/ISimpleMessageEmbeddedObjectHandler.class.php b/wcfsetup/install/files/lib/system/message/embedded/object/ISimpleMessageEmbeddedObjectHandler.class.php
index 1a8475f29a..3aff0ff600 100644
--- a/wcfsetup/install/files/lib/system/message/embedded/object/ISimpleMessageEmbeddedObjectHandler.class.php
+++ b/wcfsetup/install/files/lib/system/message/embedded/object/ISimpleMessageEmbeddedObjectHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\message\embedded\object;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/message/embedded/object/MediaMessageEmbeddedObjectHandler.class.php b/wcfsetup/install/files/lib/system/message/embedded/object/MediaMessageEmbeddedObjectHandler.class.php
index 9c161ac057..efbf8dbf59 100644
--- a/wcfsetup/install/files/lib/system/message/embedded/object/MediaMessageEmbeddedObjectHandler.class.php
+++ b/wcfsetup/install/files/lib/system/message/embedded/object/MediaMessageEmbeddedObjectHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\message\embedded\object;
 use wcf\data\media\Media;
 use wcf\data\media\MediaList;
diff --git a/wcfsetup/install/files/lib/system/message/embedded/object/MessageEmbeddedObjectManager.class.php b/wcfsetup/install/files/lib/system/message/embedded/object/MessageEmbeddedObjectManager.class.php
index ec3c2f3d69..681f9db8fd 100644
--- a/wcfsetup/install/files/lib/system/message/embedded/object/MessageEmbeddedObjectManager.class.php
+++ b/wcfsetup/install/files/lib/system/message/embedded/object/MessageEmbeddedObjectManager.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\message\embedded\object;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\system\database\util\PreparedStatementConditionBuilder;
diff --git a/wcfsetup/install/files/lib/system/message/embedded/object/PageMessageEmbeddedObjectHandler.class.php b/wcfsetup/install/files/lib/system/message/embedded/object/PageMessageEmbeddedObjectHandler.class.php
index 40cabb54bf..f87c7bcd3d 100644
--- a/wcfsetup/install/files/lib/system/message/embedded/object/PageMessageEmbeddedObjectHandler.class.php
+++ b/wcfsetup/install/files/lib/system/message/embedded/object/PageMessageEmbeddedObjectHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\message\embedded\object;
 use wcf\data\page\Page;
 use wcf\data\page\PageCache;
diff --git a/wcfsetup/install/files/lib/system/message/embedded/object/QuoteMessageEmbeddedObjectHandler.class.php b/wcfsetup/install/files/lib/system/message/embedded/object/QuoteMessageEmbeddedObjectHandler.class.php
index f1d9c6e04f..f20821400b 100644
--- a/wcfsetup/install/files/lib/system/message/embedded/object/QuoteMessageEmbeddedObjectHandler.class.php
+++ b/wcfsetup/install/files/lib/system/message/embedded/object/QuoteMessageEmbeddedObjectHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\message\embedded\object;
 use wcf\data\user\UserList;
 use wcf\system\cache\runtime\UserProfileRuntimeCache;
diff --git a/wcfsetup/install/files/lib/system/message/embedded/object/UserMessageEmbeddedObjectHandler.class.php b/wcfsetup/install/files/lib/system/message/embedded/object/UserMessageEmbeddedObjectHandler.class.php
index 4c07643a65..f76c0fcd88 100644
--- a/wcfsetup/install/files/lib/system/message/embedded/object/UserMessageEmbeddedObjectHandler.class.php
+++ b/wcfsetup/install/files/lib/system/message/embedded/object/UserMessageEmbeddedObjectHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\message\embedded\object;
 use wcf\system\cache\runtime\UserProfileRuntimeCache;
 use wcf\system\html\input\HtmlInputProcessor;
diff --git a/wcfsetup/install/files/lib/system/message/quote/AbstractMessageQuoteHandler.class.php b/wcfsetup/install/files/lib/system/message/quote/AbstractMessageQuoteHandler.class.php
index 812c3bdde9..375a0b2eac 100644
--- a/wcfsetup/install/files/lib/system/message/quote/AbstractMessageQuoteHandler.class.php
+++ b/wcfsetup/install/files/lib/system/message/quote/AbstractMessageQuoteHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\message\quote;
 use wcf\system\cache\runtime\UserProfileRuntimeCache;
 use wcf\system\SingletonFactory;
diff --git a/wcfsetup/install/files/lib/system/message/quote/IMessageQuoteHandler.class.php b/wcfsetup/install/files/lib/system/message/quote/IMessageQuoteHandler.class.php
index 7c7a06d51c..6f99fbd22f 100644
--- a/wcfsetup/install/files/lib/system/message/quote/IMessageQuoteHandler.class.php
+++ b/wcfsetup/install/files/lib/system/message/quote/IMessageQuoteHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\message\quote;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/message/quote/MessageQuoteManager.class.php b/wcfsetup/install/files/lib/system/message/quote/MessageQuoteManager.class.php
index 9f54d1e3f5..d1a99942f9 100644
--- a/wcfsetup/install/files/lib/system/message/quote/MessageQuoteManager.class.php
+++ b/wcfsetup/install/files/lib/system/message/quote/MessageQuoteManager.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\message\quote;
 use wcf\data\object\type\ObjectType;
 use wcf\data\object\type\ObjectTypeCache;
diff --git a/wcfsetup/install/files/lib/system/message/quote/QuotedMessage.class.php b/wcfsetup/install/files/lib/system/message/quote/QuotedMessage.class.php
index 30fa60519e..f4888d2cf1 100644
--- a/wcfsetup/install/files/lib/system/message/quote/QuotedMessage.class.php
+++ b/wcfsetup/install/files/lib/system/message/quote/QuotedMessage.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\message\quote;
 use wcf\data\IMessage;
 
diff --git a/wcfsetup/install/files/lib/system/moderation/AbstractDeletedContentProvider.class.php b/wcfsetup/install/files/lib/system/moderation/AbstractDeletedContentProvider.class.php
index 1ca06c60ae..7985c71c97 100644
--- a/wcfsetup/install/files/lib/system/moderation/AbstractDeletedContentProvider.class.php
+++ b/wcfsetup/install/files/lib/system/moderation/AbstractDeletedContentProvider.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\moderation;
 use wcf\data\object\type\AbstractObjectTypeProcessor;
 
diff --git a/wcfsetup/install/files/lib/system/moderation/IDeletedContentProvider.class.php b/wcfsetup/install/files/lib/system/moderation/IDeletedContentProvider.class.php
index f3cb04d7f9..f7bd17d943 100644
--- a/wcfsetup/install/files/lib/system/moderation/IDeletedContentProvider.class.php
+++ b/wcfsetup/install/files/lib/system/moderation/IDeletedContentProvider.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\moderation;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/moderation/queue/AbstractCommentCommentModerationQueueHandler.class.php b/wcfsetup/install/files/lib/system/moderation/queue/AbstractCommentCommentModerationQueueHandler.class.php
index 523974bc63..cc6d9a7999 100644
--- a/wcfsetup/install/files/lib/system/moderation/queue/AbstractCommentCommentModerationQueueHandler.class.php
+++ b/wcfsetup/install/files/lib/system/moderation/queue/AbstractCommentCommentModerationQueueHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\moderation\queue;
 use wcf\data\comment\Comment;
 use wcf\data\comment\CommentAction;
diff --git a/wcfsetup/install/files/lib/system/moderation/queue/AbstractCommentResponseModerationQueueHandler.class.php b/wcfsetup/install/files/lib/system/moderation/queue/AbstractCommentResponseModerationQueueHandler.class.php
index b127b6621d..426d3a69e4 100644
--- a/wcfsetup/install/files/lib/system/moderation/queue/AbstractCommentResponseModerationQueueHandler.class.php
+++ b/wcfsetup/install/files/lib/system/moderation/queue/AbstractCommentResponseModerationQueueHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\moderation\queue;
 use wcf\data\comment\response\CommentResponse;
 use wcf\data\comment\response\CommentResponseAction;
diff --git a/wcfsetup/install/files/lib/system/moderation/queue/AbstractModerationQueueHandler.class.php b/wcfsetup/install/files/lib/system/moderation/queue/AbstractModerationQueueHandler.class.php
index 2036eb1ab3..52bd5c2d82 100644
--- a/wcfsetup/install/files/lib/system/moderation/queue/AbstractModerationQueueHandler.class.php
+++ b/wcfsetup/install/files/lib/system/moderation/queue/AbstractModerationQueueHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\moderation\queue;
 use wcf\data\moderation\queue\ModerationQueue;
 use wcf\data\moderation\queue\ModerationQueueAction;
diff --git a/wcfsetup/install/files/lib/system/moderation/queue/AbstractModerationQueueManager.class.php b/wcfsetup/install/files/lib/system/moderation/queue/AbstractModerationQueueManager.class.php
index 40fd8cedf6..05ca474cc7 100644
--- a/wcfsetup/install/files/lib/system/moderation/queue/AbstractModerationQueueManager.class.php
+++ b/wcfsetup/install/files/lib/system/moderation/queue/AbstractModerationQueueManager.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\moderation\queue;
 use wcf\data\moderation\queue\ModerationQueue;
 use wcf\data\moderation\queue\ModerationQueueAction;
diff --git a/wcfsetup/install/files/lib/system/moderation/queue/IModerationQueueHandler.class.php b/wcfsetup/install/files/lib/system/moderation/queue/IModerationQueueHandler.class.php
index 7f93ee4017..7d558e8645 100644
--- a/wcfsetup/install/files/lib/system/moderation/queue/IModerationQueueHandler.class.php
+++ b/wcfsetup/install/files/lib/system/moderation/queue/IModerationQueueHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\moderation\queue;
 use wcf\data\moderation\queue\ModerationQueue;
 use wcf\data\moderation\queue\ViewableModerationQueue;
diff --git a/wcfsetup/install/files/lib/system/moderation/queue/IModerationQueueManager.class.php b/wcfsetup/install/files/lib/system/moderation/queue/IModerationQueueManager.class.php
index 620f235e6b..9a28da1130 100644
--- a/wcfsetup/install/files/lib/system/moderation/queue/IModerationQueueManager.class.php
+++ b/wcfsetup/install/files/lib/system/moderation/queue/IModerationQueueManager.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\moderation\queue;
 use wcf\data\moderation\queue\ModerationQueue;
 use wcf\data\moderation\queue\ViewableModerationQueue;
diff --git a/wcfsetup/install/files/lib/system/moderation/queue/ModerationQueueActivationManager.class.php b/wcfsetup/install/files/lib/system/moderation/queue/ModerationQueueActivationManager.class.php
index e7281729b6..401dcd5db3 100644
--- a/wcfsetup/install/files/lib/system/moderation/queue/ModerationQueueActivationManager.class.php
+++ b/wcfsetup/install/files/lib/system/moderation/queue/ModerationQueueActivationManager.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\moderation\queue;
 use wcf\data\moderation\queue\ModerationQueue;
 use wcf\data\moderation\queue\ViewableModerationQueue;
diff --git a/wcfsetup/install/files/lib/system/moderation/queue/ModerationQueueManager.class.php b/wcfsetup/install/files/lib/system/moderation/queue/ModerationQueueManager.class.php
index 9cc1593340..3543d9c1d0 100644
--- a/wcfsetup/install/files/lib/system/moderation/queue/ModerationQueueManager.class.php
+++ b/wcfsetup/install/files/lib/system/moderation/queue/ModerationQueueManager.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\moderation\queue;
 use wcf\data\moderation\queue\ModerationQueue;
 use wcf\data\moderation\queue\ModerationQueueList;
diff --git a/wcfsetup/install/files/lib/system/moderation/queue/ModerationQueueReportManager.class.php b/wcfsetup/install/files/lib/system/moderation/queue/ModerationQueueReportManager.class.php
index 82bf335232..48c6b2092c 100644
--- a/wcfsetup/install/files/lib/system/moderation/queue/ModerationQueueReportManager.class.php
+++ b/wcfsetup/install/files/lib/system/moderation/queue/ModerationQueueReportManager.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\moderation\queue;
 use wcf\data\moderation\queue\ModerationQueue;
 use wcf\data\moderation\queue\ModerationQueueAction;
diff --git a/wcfsetup/install/files/lib/system/moderation/queue/activation/CommentCommentModerationQueueActivationHandler.class.php b/wcfsetup/install/files/lib/system/moderation/queue/activation/CommentCommentModerationQueueActivationHandler.class.php
index 1885cdbdd5..e82887542b 100644
--- a/wcfsetup/install/files/lib/system/moderation/queue/activation/CommentCommentModerationQueueActivationHandler.class.php
+++ b/wcfsetup/install/files/lib/system/moderation/queue/activation/CommentCommentModerationQueueActivationHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\moderation\queue\activation;
 use wcf\data\comment\CommentAction;
 use wcf\data\moderation\queue\ModerationQueue;
diff --git a/wcfsetup/install/files/lib/system/moderation/queue/activation/CommentResponseModerationQueueActivationHandler.class.php b/wcfsetup/install/files/lib/system/moderation/queue/activation/CommentResponseModerationQueueActivationHandler.class.php
index 0659269063..b7efaf4f8c 100644
--- a/wcfsetup/install/files/lib/system/moderation/queue/activation/CommentResponseModerationQueueActivationHandler.class.php
+++ b/wcfsetup/install/files/lib/system/moderation/queue/activation/CommentResponseModerationQueueActivationHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\moderation\queue\activation;
 use wcf\data\comment\CommentAction;
 use wcf\data\moderation\queue\ModerationQueue;
diff --git a/wcfsetup/install/files/lib/system/moderation/queue/activation/IModerationQueueActivationHandler.class.php b/wcfsetup/install/files/lib/system/moderation/queue/activation/IModerationQueueActivationHandler.class.php
index 2696f91c62..1122d845e1 100644
--- a/wcfsetup/install/files/lib/system/moderation/queue/activation/IModerationQueueActivationHandler.class.php
+++ b/wcfsetup/install/files/lib/system/moderation/queue/activation/IModerationQueueActivationHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\moderation\queue\activation;
 use wcf\data\moderation\queue\ModerationQueue;
 use wcf\data\moderation\queue\ViewableModerationQueue;
diff --git a/wcfsetup/install/files/lib/system/moderation/queue/report/CommentCommentModerationQueueReportHandler.class.php b/wcfsetup/install/files/lib/system/moderation/queue/report/CommentCommentModerationQueueReportHandler.class.php
index af4acbfd4f..c2b1c3cc03 100644
--- a/wcfsetup/install/files/lib/system/moderation/queue/report/CommentCommentModerationQueueReportHandler.class.php
+++ b/wcfsetup/install/files/lib/system/moderation/queue/report/CommentCommentModerationQueueReportHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\moderation\queue\report;
 use wcf\data\moderation\queue\ViewableModerationQueue;
 use wcf\system\moderation\queue\AbstractCommentCommentModerationQueueHandler;
diff --git a/wcfsetup/install/files/lib/system/moderation/queue/report/CommentResponseModerationQueueReportHandler.class.php b/wcfsetup/install/files/lib/system/moderation/queue/report/CommentResponseModerationQueueReportHandler.class.php
index 99b1c3e96c..2fe95d8519 100644
--- a/wcfsetup/install/files/lib/system/moderation/queue/report/CommentResponseModerationQueueReportHandler.class.php
+++ b/wcfsetup/install/files/lib/system/moderation/queue/report/CommentResponseModerationQueueReportHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\moderation\queue\report;
 use wcf\data\moderation\queue\ViewableModerationQueue;
 use wcf\system\moderation\queue\AbstractCommentResponseModerationQueueHandler;
diff --git a/wcfsetup/install/files/lib/system/moderation/queue/report/IModerationQueueReportHandler.class.php b/wcfsetup/install/files/lib/system/moderation/queue/report/IModerationQueueReportHandler.class.php
index ba0e0cf170..8ddbb69b52 100644
--- a/wcfsetup/install/files/lib/system/moderation/queue/report/IModerationQueueReportHandler.class.php
+++ b/wcfsetup/install/files/lib/system/moderation/queue/report/IModerationQueueReportHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\moderation\queue\report;
 use wcf\data\moderation\queue\ViewableModerationQueue;
 use wcf\system\moderation\queue\IModerationQueueHandler;
diff --git a/wcfsetup/install/files/lib/system/moderation/queue/report/UserModerationQueueReportHandler.class.php b/wcfsetup/install/files/lib/system/moderation/queue/report/UserModerationQueueReportHandler.class.php
index 0af90c4e67..58f9b78426 100644
--- a/wcfsetup/install/files/lib/system/moderation/queue/report/UserModerationQueueReportHandler.class.php
+++ b/wcfsetup/install/files/lib/system/moderation/queue/report/UserModerationQueueReportHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\moderation\queue\report;
 use wcf\data\moderation\queue\ModerationQueue;
 use wcf\data\moderation\queue\ViewableModerationQueue;
diff --git a/wcfsetup/install/files/lib/system/notice/NoticeHandler.class.php b/wcfsetup/install/files/lib/system/notice/NoticeHandler.class.php
index 08581c3558..5dcc618992 100644
--- a/wcfsetup/install/files/lib/system/notice/NoticeHandler.class.php
+++ b/wcfsetup/install/files/lib/system/notice/NoticeHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\notice;
 use wcf\data\notice\Notice;
 use wcf\system\cache\builder\NoticeCacheBuilder;
diff --git a/wcfsetup/install/files/lib/system/option/AboutMeOptionType.class.php b/wcfsetup/install/files/lib/system/option/AboutMeOptionType.class.php
index 4a45ef5d87..4592227729 100644
--- a/wcfsetup/install/files/lib/system/option/AboutMeOptionType.class.php
+++ b/wcfsetup/install/files/lib/system/option/AboutMeOptionType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option;
 use wcf\data\option\Option;
 use wcf\system\exception\UserInputException;
diff --git a/wcfsetup/install/files/lib/system/option/AbstractCategoryMultiSelectOptionType.class.php b/wcfsetup/install/files/lib/system/option/AbstractCategoryMultiSelectOptionType.class.php
index 2c363547d4..6b6c613a07 100644
--- a/wcfsetup/install/files/lib/system/option/AbstractCategoryMultiSelectOptionType.class.php
+++ b/wcfsetup/install/files/lib/system/option/AbstractCategoryMultiSelectOptionType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option;
 use wcf\data\category\CategoryNodeTree;
 use wcf\data\option\Option;
diff --git a/wcfsetup/install/files/lib/system/option/AbstractOptionType.class.php b/wcfsetup/install/files/lib/system/option/AbstractOptionType.class.php
index 7c6dc50cf9..08162fcbf0 100644
--- a/wcfsetup/install/files/lib/system/option/AbstractOptionType.class.php
+++ b/wcfsetup/install/files/lib/system/option/AbstractOptionType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option;
 use wcf\data\option\Option;
 
diff --git a/wcfsetup/install/files/lib/system/option/ArticleCategoryMultiSelectOptionType.class.php b/wcfsetup/install/files/lib/system/option/ArticleCategoryMultiSelectOptionType.class.php
index 7a3060d568..70ae9044ee 100644
--- a/wcfsetup/install/files/lib/system/option/ArticleCategoryMultiSelectOptionType.class.php
+++ b/wcfsetup/install/files/lib/system/option/ArticleCategoryMultiSelectOptionType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option;
 use wcf\data\article\category\ArticleCategoryNodeTree;
 
diff --git a/wcfsetup/install/files/lib/system/option/BirthdayOptionType.class.php b/wcfsetup/install/files/lib/system/option/BirthdayOptionType.class.php
index 57902abe0c..ee2fca60d1 100644
--- a/wcfsetup/install/files/lib/system/option/BirthdayOptionType.class.php
+++ b/wcfsetup/install/files/lib/system/option/BirthdayOptionType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option;
 use wcf\data\option\Option;
 use wcf\data\user\User;
diff --git a/wcfsetup/install/files/lib/system/option/BooleanOptionType.class.php b/wcfsetup/install/files/lib/system/option/BooleanOptionType.class.php
index 35f4d3848a..d456088f55 100644
--- a/wcfsetup/install/files/lib/system/option/BooleanOptionType.class.php
+++ b/wcfsetup/install/files/lib/system/option/BooleanOptionType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option;
 use wcf\data\option\Option;
 use wcf\data\user\User;
diff --git a/wcfsetup/install/files/lib/system/option/CaptchaSelectOptionType.class.php b/wcfsetup/install/files/lib/system/option/CaptchaSelectOptionType.class.php
index e7ba0f2eea..9d30959296 100644
--- a/wcfsetup/install/files/lib/system/option/CaptchaSelectOptionType.class.php
+++ b/wcfsetup/install/files/lib/system/option/CaptchaSelectOptionType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option;
 use wcf\data\option\Option;
 use wcf\system\captcha\CaptchaHandler;
diff --git a/wcfsetup/install/files/lib/system/option/CheckboxesOptionType.class.php b/wcfsetup/install/files/lib/system/option/CheckboxesOptionType.class.php
index e897ae0d42..496fed9d98 100644
--- a/wcfsetup/install/files/lib/system/option/CheckboxesOptionType.class.php
+++ b/wcfsetup/install/files/lib/system/option/CheckboxesOptionType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/option/ContactOptionHandler.class.php b/wcfsetup/install/files/lib/system/option/ContactOptionHandler.class.php
index 144203ca25..1b7c76ace0 100644
--- a/wcfsetup/install/files/lib/system/option/ContactOptionHandler.class.php
+++ b/wcfsetup/install/files/lib/system/option/ContactOptionHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option;
 use wcf\system\cache\builder\ContactOptionCacheBuilder;
 
diff --git a/wcfsetup/install/files/lib/system/option/CustomOptionHandler.class.php b/wcfsetup/install/files/lib/system/option/CustomOptionHandler.class.php
index 0d54e0ca50..ff29a88e05 100644
--- a/wcfsetup/install/files/lib/system/option/CustomOptionHandler.class.php
+++ b/wcfsetup/install/files/lib/system/option/CustomOptionHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option;
 use wcf\data\custom\option\CustomOption;
 use wcf\data\option\Option;
diff --git a/wcfsetup/install/files/lib/system/option/DateOptionType.class.php b/wcfsetup/install/files/lib/system/option/DateOptionType.class.php
index 134bc3ea5b..0769ba1f2e 100644
--- a/wcfsetup/install/files/lib/system/option/DateOptionType.class.php
+++ b/wcfsetup/install/files/lib/system/option/DateOptionType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option;
 use wcf\data\option\Option;
 use wcf\system\exception\UserInputException;
diff --git a/wcfsetup/install/files/lib/system/option/DesktopNotificationApplicationSelectOptionType.class.php b/wcfsetup/install/files/lib/system/option/DesktopNotificationApplicationSelectOptionType.class.php
index 4a36d4c948..cb7dd7bd71 100644
--- a/wcfsetup/install/files/lib/system/option/DesktopNotificationApplicationSelectOptionType.class.php
+++ b/wcfsetup/install/files/lib/system/option/DesktopNotificationApplicationSelectOptionType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option;
 use wcf\data\option\Option;
 use wcf\system\application\ApplicationHandler;
diff --git a/wcfsetup/install/files/lib/system/option/FileOptionType.class.php b/wcfsetup/install/files/lib/system/option/FileOptionType.class.php
index 10ef36b83b..ce259b481c 100644
--- a/wcfsetup/install/files/lib/system/option/FileOptionType.class.php
+++ b/wcfsetup/install/files/lib/system/option/FileOptionType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option;
 use wcf\data\option\Option;
 use wcf\data\package\PackageCache;
diff --git a/wcfsetup/install/files/lib/system/option/FileSizeOptionType.class.php b/wcfsetup/install/files/lib/system/option/FileSizeOptionType.class.php
index b2f5a71bd9..f5371c6671 100644
--- a/wcfsetup/install/files/lib/system/option/FileSizeOptionType.class.php
+++ b/wcfsetup/install/files/lib/system/option/FileSizeOptionType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option;
 use wcf\data\option\Option;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/system/option/FloatOptionType.class.php b/wcfsetup/install/files/lib/system/option/FloatOptionType.class.php
index e14505f0a3..51490a42fc 100644
--- a/wcfsetup/install/files/lib/system/option/FloatOptionType.class.php
+++ b/wcfsetup/install/files/lib/system/option/FloatOptionType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option;
 use wcf\data\option\Option;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/system/option/IOptionHandler.class.php b/wcfsetup/install/files/lib/system/option/IOptionHandler.class.php
index ce969d52ec..9c8be19897 100644
--- a/wcfsetup/install/files/lib/system/option/IOptionHandler.class.php
+++ b/wcfsetup/install/files/lib/system/option/IOptionHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/option/IOptionType.class.php b/wcfsetup/install/files/lib/system/option/IOptionType.class.php
index 9ad1cdd2f9..1b1b4ee4b1 100644
--- a/wcfsetup/install/files/lib/system/option/IOptionType.class.php
+++ b/wcfsetup/install/files/lib/system/option/IOptionType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option;
 use wcf\data\option\Option;
 
diff --git a/wcfsetup/install/files/lib/system/option/ISearchableConditionUserOption.class.php b/wcfsetup/install/files/lib/system/option/ISearchableConditionUserOption.class.php
index a6102c1da5..a0ac2a2972 100644
--- a/wcfsetup/install/files/lib/system/option/ISearchableConditionUserOption.class.php
+++ b/wcfsetup/install/files/lib/system/option/ISearchableConditionUserOption.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option;
 use wcf\data\option\Option;
 use wcf\data\user\User;
diff --git a/wcfsetup/install/files/lib/system/option/ISearchableUserOption.class.php b/wcfsetup/install/files/lib/system/option/ISearchableUserOption.class.php
index 9548c2fffe..6b127235af 100644
--- a/wcfsetup/install/files/lib/system/option/ISearchableUserOption.class.php
+++ b/wcfsetup/install/files/lib/system/option/ISearchableUserOption.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option;
 use wcf\data\option\Option;
 use wcf\system\database\util\PreparedStatementConditionBuilder;
diff --git a/wcfsetup/install/files/lib/system/option/IntegerOptionType.class.php b/wcfsetup/install/files/lib/system/option/IntegerOptionType.class.php
index 5eeaf1cf9a..eda86f117e 100644
--- a/wcfsetup/install/files/lib/system/option/IntegerOptionType.class.php
+++ b/wcfsetup/install/files/lib/system/option/IntegerOptionType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option;
 use wcf\data\option\Option;
 use wcf\system\exception\UserInputException;
diff --git a/wcfsetup/install/files/lib/system/option/MessageOptionType.class.php b/wcfsetup/install/files/lib/system/option/MessageOptionType.class.php
index 95fe2aaa78..b4b58b6956 100644
--- a/wcfsetup/install/files/lib/system/option/MessageOptionType.class.php
+++ b/wcfsetup/install/files/lib/system/option/MessageOptionType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option;
 use wcf\data\option\Option;
 use wcf\data\smiley\SmileyCache;
diff --git a/wcfsetup/install/files/lib/system/option/MultiSelectOptionType.class.php b/wcfsetup/install/files/lib/system/option/MultiSelectOptionType.class.php
index 8295be614e..19bfec8699 100644
--- a/wcfsetup/install/files/lib/system/option/MultiSelectOptionType.class.php
+++ b/wcfsetup/install/files/lib/system/option/MultiSelectOptionType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option;
 use wcf\data\option\Option;
 use wcf\data\user\User;
diff --git a/wcfsetup/install/files/lib/system/option/OptionHandler.class.php b/wcfsetup/install/files/lib/system/option/OptionHandler.class.php
index 4dad4459c0..5319887824 100644
--- a/wcfsetup/install/files/lib/system/option/OptionHandler.class.php
+++ b/wcfsetup/install/files/lib/system/option/OptionHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option;
 use wcf\data\option\category\OptionCategory;
 use wcf\data\option\Option;
diff --git a/wcfsetup/install/files/lib/system/option/PasswordOptionType.class.php b/wcfsetup/install/files/lib/system/option/PasswordOptionType.class.php
index 49bfa92e78..7561ccc159 100644
--- a/wcfsetup/install/files/lib/system/option/PasswordOptionType.class.php
+++ b/wcfsetup/install/files/lib/system/option/PasswordOptionType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option;
 use wcf\data\option\Option;
 use wcf\data\user\User;
diff --git a/wcfsetup/install/files/lib/system/option/PaymentMethodSelectOptionType.class.php b/wcfsetup/install/files/lib/system/option/PaymentMethodSelectOptionType.class.php
index 549855ada1..1f9d1153b3 100644
--- a/wcfsetup/install/files/lib/system/option/PaymentMethodSelectOptionType.class.php
+++ b/wcfsetup/install/files/lib/system/option/PaymentMethodSelectOptionType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option;
 use wcf\data\option\Option;
 use wcf\system\exception\UserInputException;
diff --git a/wcfsetup/install/files/lib/system/option/RadioButtonOptionType.class.php b/wcfsetup/install/files/lib/system/option/RadioButtonOptionType.class.php
index 861dee6498..f5bdb2d86d 100644
--- a/wcfsetup/install/files/lib/system/option/RadioButtonOptionType.class.php
+++ b/wcfsetup/install/files/lib/system/option/RadioButtonOptionType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option;
 use wcf\data\option\Option;
 use wcf\data\user\User;
diff --git a/wcfsetup/install/files/lib/system/option/SelectOptionType.class.php b/wcfsetup/install/files/lib/system/option/SelectOptionType.class.php
index 6870d48a56..52a525e307 100644
--- a/wcfsetup/install/files/lib/system/option/SelectOptionType.class.php
+++ b/wcfsetup/install/files/lib/system/option/SelectOptionType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option;
 use wcf\data\option\Option;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/system/option/TextI18nOptionType.class.php b/wcfsetup/install/files/lib/system/option/TextI18nOptionType.class.php
index 94126e698e..3d86c6249b 100644
--- a/wcfsetup/install/files/lib/system/option/TextI18nOptionType.class.php
+++ b/wcfsetup/install/files/lib/system/option/TextI18nOptionType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option;
 use wcf\data\option\Option;
 use wcf\system\exception\UserInputException;
diff --git a/wcfsetup/install/files/lib/system/option/TextOptionType.class.php b/wcfsetup/install/files/lib/system/option/TextOptionType.class.php
index 57e9bfef33..d169b64a7b 100644
--- a/wcfsetup/install/files/lib/system/option/TextOptionType.class.php
+++ b/wcfsetup/install/files/lib/system/option/TextOptionType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option;
 use wcf\data\option\Option;
 use wcf\data\user\User;
diff --git a/wcfsetup/install/files/lib/system/option/TextareaI18nOptionType.class.php b/wcfsetup/install/files/lib/system/option/TextareaI18nOptionType.class.php
index b5bfff18ac..94e712ba22 100644
--- a/wcfsetup/install/files/lib/system/option/TextareaI18nOptionType.class.php
+++ b/wcfsetup/install/files/lib/system/option/TextareaI18nOptionType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option;
 use wcf\data\option\Option;
 use wcf\system\exception\UserInputException;
diff --git a/wcfsetup/install/files/lib/system/option/TextareaIpAddressOptionType.class.php b/wcfsetup/install/files/lib/system/option/TextareaIpAddressOptionType.class.php
index 21ed5310ce..c51485a8d9 100644
--- a/wcfsetup/install/files/lib/system/option/TextareaIpAddressOptionType.class.php
+++ b/wcfsetup/install/files/lib/system/option/TextareaIpAddressOptionType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option;
 use wcf\data\option\Option;
 use wcf\system\exception\UserInputException;
diff --git a/wcfsetup/install/files/lib/system/option/TextareaOptionType.class.php b/wcfsetup/install/files/lib/system/option/TextareaOptionType.class.php
index 668ed3b5a7..d2149765e6 100644
--- a/wcfsetup/install/files/lib/system/option/TextareaOptionType.class.php
+++ b/wcfsetup/install/files/lib/system/option/TextareaOptionType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option;
 use wcf\data\option\Option;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/system/option/TimezoneOptionType.class.php b/wcfsetup/install/files/lib/system/option/TimezoneOptionType.class.php
index 208792f932..cfdeaf6641 100644
--- a/wcfsetup/install/files/lib/system/option/TimezoneOptionType.class.php
+++ b/wcfsetup/install/files/lib/system/option/TimezoneOptionType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option;
 use wcf\data\option\Option;
 use wcf\system\exception\UserInputException;
diff --git a/wcfsetup/install/files/lib/system/option/URLOptionType.class.php b/wcfsetup/install/files/lib/system/option/URLOptionType.class.php
index 97702b430c..d72e4d8bed 100644
--- a/wcfsetup/install/files/lib/system/option/URLOptionType.class.php
+++ b/wcfsetup/install/files/lib/system/option/URLOptionType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option;
 use wcf\data\option\Option;
 
diff --git a/wcfsetup/install/files/lib/system/option/UserGroupOptionType.class.php b/wcfsetup/install/files/lib/system/option/UserGroupOptionType.class.php
index 8117c6eabd..d39ebe4ee3 100644
--- a/wcfsetup/install/files/lib/system/option/UserGroupOptionType.class.php
+++ b/wcfsetup/install/files/lib/system/option/UserGroupOptionType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option;
 use wcf\system\option\user\group\UserGroupsUserGroupOptionType;
 
diff --git a/wcfsetup/install/files/lib/system/option/UseroptionsOptionType.class.php b/wcfsetup/install/files/lib/system/option/UseroptionsOptionType.class.php
index ed63bdcca1..776b24e035 100644
--- a/wcfsetup/install/files/lib/system/option/UseroptionsOptionType.class.php
+++ b/wcfsetup/install/files/lib/system/option/UseroptionsOptionType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option;
 use wcf\data\option\Option;
 use wcf\system\exception\UserInputException;
diff --git a/wcfsetup/install/files/lib/system/option/user/BirthdayUserOptionOutput.class.php b/wcfsetup/install/files/lib/system/option/user/BirthdayUserOptionOutput.class.php
index 7ef3bd014f..e559e07727 100644
--- a/wcfsetup/install/files/lib/system/option/user/BirthdayUserOptionOutput.class.php
+++ b/wcfsetup/install/files/lib/system/option/user/BirthdayUserOptionOutput.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option\user;
 use wcf\data\user\option\UserOption;
 use wcf\data\user\User;
diff --git a/wcfsetup/install/files/lib/system/option/user/DateUserOptionOutput.class.php b/wcfsetup/install/files/lib/system/option/user/DateUserOptionOutput.class.php
index 2ce56b2b66..7438280b8d 100644
--- a/wcfsetup/install/files/lib/system/option/user/DateUserOptionOutput.class.php
+++ b/wcfsetup/install/files/lib/system/option/user/DateUserOptionOutput.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option\user;
 use wcf\data\user\option\UserOption;
 use wcf\data\user\User;
diff --git a/wcfsetup/install/files/lib/system/option/user/FacebookUserOptionOutput.class.php b/wcfsetup/install/files/lib/system/option/user/FacebookUserOptionOutput.class.php
index 06ae0b2889..0b0c51d557 100644
--- a/wcfsetup/install/files/lib/system/option/user/FacebookUserOptionOutput.class.php
+++ b/wcfsetup/install/files/lib/system/option/user/FacebookUserOptionOutput.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option\user;
 use wcf\data\user\option\UserOption;
 use wcf\data\user\User;
diff --git a/wcfsetup/install/files/lib/system/option/user/FloatUserOptionOutput.class.php b/wcfsetup/install/files/lib/system/option/user/FloatUserOptionOutput.class.php
index 22f4095219..38097ec148 100644
--- a/wcfsetup/install/files/lib/system/option/user/FloatUserOptionOutput.class.php
+++ b/wcfsetup/install/files/lib/system/option/user/FloatUserOptionOutput.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option\user;
 use wcf\data\user\option\UserOption;
 use wcf\data\user\User;
diff --git a/wcfsetup/install/files/lib/system/option/user/GooglePlusUserOptionOutput.class.php b/wcfsetup/install/files/lib/system/option/user/GooglePlusUserOptionOutput.class.php
index e92e1112d0..d0c44b7ece 100644
--- a/wcfsetup/install/files/lib/system/option/user/GooglePlusUserOptionOutput.class.php
+++ b/wcfsetup/install/files/lib/system/option/user/GooglePlusUserOptionOutput.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option\user;
 use wcf\data\user\option\UserOption;
 use wcf\data\user\User;
diff --git a/wcfsetup/install/files/lib/system/option/user/IUserOptionOutput.class.php b/wcfsetup/install/files/lib/system/option/user/IUserOptionOutput.class.php
index 35a281fd2d..1e7bd1f570 100644
--- a/wcfsetup/install/files/lib/system/option/user/IUserOptionOutput.class.php
+++ b/wcfsetup/install/files/lib/system/option/user/IUserOptionOutput.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option\user;
 use wcf\data\user\option\UserOption;
 use wcf\data\user\User;
diff --git a/wcfsetup/install/files/lib/system/option/user/ImageUserOptionOutput.class.php b/wcfsetup/install/files/lib/system/option/user/ImageUserOptionOutput.class.php
index b467821652..c7c533d72f 100644
--- a/wcfsetup/install/files/lib/system/option/user/ImageUserOptionOutput.class.php
+++ b/wcfsetup/install/files/lib/system/option/user/ImageUserOptionOutput.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option\user;
 use wcf\data\user\option\UserOption;
 use wcf\data\user\User;
diff --git a/wcfsetup/install/files/lib/system/option/user/MessageUserOptionOutput.class.php b/wcfsetup/install/files/lib/system/option/user/MessageUserOptionOutput.class.php
index deb621f801..80a8090981 100644
--- a/wcfsetup/install/files/lib/system/option/user/MessageUserOptionOutput.class.php
+++ b/wcfsetup/install/files/lib/system/option/user/MessageUserOptionOutput.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option\user;
 use wcf\data\user\option\UserOption;
 use wcf\data\user\User;
diff --git a/wcfsetup/install/files/lib/system/option/user/NewlineToBreakUserOptionOutput.class.php b/wcfsetup/install/files/lib/system/option/user/NewlineToBreakUserOptionOutput.class.php
index 4fe8f3db0a..ce247aa283 100644
--- a/wcfsetup/install/files/lib/system/option/user/NewlineToBreakUserOptionOutput.class.php
+++ b/wcfsetup/install/files/lib/system/option/user/NewlineToBreakUserOptionOutput.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option\user;
 use wcf\data\user\option\UserOption;
 use wcf\data\user\User;
diff --git a/wcfsetup/install/files/lib/system/option/user/SelectOptionsUserOptionOutput.class.php b/wcfsetup/install/files/lib/system/option/user/SelectOptionsUserOptionOutput.class.php
index 91e6ffa70b..5faa597eb4 100644
--- a/wcfsetup/install/files/lib/system/option/user/SelectOptionsUserOptionOutput.class.php
+++ b/wcfsetup/install/files/lib/system/option/user/SelectOptionsUserOptionOutput.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option\user;
 use wcf\data\user\option\UserOption;
 use wcf\data\user\User;
diff --git a/wcfsetup/install/files/lib/system/option/user/TwitterUserOptionOutput.class.php b/wcfsetup/install/files/lib/system/option/user/TwitterUserOptionOutput.class.php
index 4fe43f024d..2b32a5b340 100644
--- a/wcfsetup/install/files/lib/system/option/user/TwitterUserOptionOutput.class.php
+++ b/wcfsetup/install/files/lib/system/option/user/TwitterUserOptionOutput.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option\user;
 use wcf\data\user\option\UserOption;
 use wcf\data\user\User;
diff --git a/wcfsetup/install/files/lib/system/option/user/URLUserOptionOutput.class.php b/wcfsetup/install/files/lib/system/option/user/URLUserOptionOutput.class.php
index c3013f3d9d..28d0f9afe7 100644
--- a/wcfsetup/install/files/lib/system/option/user/URLUserOptionOutput.class.php
+++ b/wcfsetup/install/files/lib/system/option/user/URLUserOptionOutput.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option\user;
 use wcf\data\user\option\UserOption;
 use wcf\data\user\User;
diff --git a/wcfsetup/install/files/lib/system/option/user/UserOptionHandler.class.php b/wcfsetup/install/files/lib/system/option/user/UserOptionHandler.class.php
index cf363229a2..0e6f0ea150 100644
--- a/wcfsetup/install/files/lib/system/option/user/UserOptionHandler.class.php
+++ b/wcfsetup/install/files/lib/system/option/user/UserOptionHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option\user;
 use wcf\data\option\category\OptionCategory;
 use wcf\data\option\Option;
diff --git a/wcfsetup/install/files/lib/system/option/user/group/BBCodeSelectUserGroupOptionType.class.php b/wcfsetup/install/files/lib/system/option/user/group/BBCodeSelectUserGroupOptionType.class.php
index 6757ce5a41..8a6532783d 100644
--- a/wcfsetup/install/files/lib/system/option/user/group/BBCodeSelectUserGroupOptionType.class.php
+++ b/wcfsetup/install/files/lib/system/option/user/group/BBCodeSelectUserGroupOptionType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option\user\group;
 use wcf\data\bbcode\BBCodeCache;
 use wcf\data\option\Option;
diff --git a/wcfsetup/install/files/lib/system/option/user/group/BooleanUserGroupOptionType.class.php b/wcfsetup/install/files/lib/system/option/user/group/BooleanUserGroupOptionType.class.php
index 6ef7865371..fb8fd3d9ad 100644
--- a/wcfsetup/install/files/lib/system/option/user/group/BooleanUserGroupOptionType.class.php
+++ b/wcfsetup/install/files/lib/system/option/user/group/BooleanUserGroupOptionType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option\user\group;
 use wcf\data\option\Option;
 use wcf\system\option\BooleanOptionType;
diff --git a/wcfsetup/install/files/lib/system/option/user/group/FileSizeUserGroupOptionType.class.php b/wcfsetup/install/files/lib/system/option/user/group/FileSizeUserGroupOptionType.class.php
index 154566f3be..55b6ebf371 100644
--- a/wcfsetup/install/files/lib/system/option/user/group/FileSizeUserGroupOptionType.class.php
+++ b/wcfsetup/install/files/lib/system/option/user/group/FileSizeUserGroupOptionType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option\user\group;
 use wcf\system\option\FileSizeOptionType;
 
diff --git a/wcfsetup/install/files/lib/system/option/user/group/IUserGroupGroupOptionType.class.php b/wcfsetup/install/files/lib/system/option/user/group/IUserGroupGroupOptionType.class.php
index aa497133f5..2b87e961c2 100644
--- a/wcfsetup/install/files/lib/system/option/user/group/IUserGroupGroupOptionType.class.php
+++ b/wcfsetup/install/files/lib/system/option/user/group/IUserGroupGroupOptionType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option\user\group;
 use wcf\data\user\group\UserGroup;
 
diff --git a/wcfsetup/install/files/lib/system/option/user/group/IUserGroupOptionType.class.php b/wcfsetup/install/files/lib/system/option/user/group/IUserGroupOptionType.class.php
index ec4dea2b92..a3dd65854b 100644
--- a/wcfsetup/install/files/lib/system/option/user/group/IUserGroupOptionType.class.php
+++ b/wcfsetup/install/files/lib/system/option/user/group/IUserGroupOptionType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option\user\group;
 use wcf\system\option\IOptionType;
 
diff --git a/wcfsetup/install/files/lib/system/option/user/group/InfiniteIntegerUserGroupOptionType.class.php b/wcfsetup/install/files/lib/system/option/user/group/InfiniteIntegerUserGroupOptionType.class.php
index 8168143476..469860a01a 100644
--- a/wcfsetup/install/files/lib/system/option/user/group/InfiniteIntegerUserGroupOptionType.class.php
+++ b/wcfsetup/install/files/lib/system/option/user/group/InfiniteIntegerUserGroupOptionType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option\user\group;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/option/user/group/InfiniteInverseIntegerUserGroupOptionType.class.php b/wcfsetup/install/files/lib/system/option/user/group/InfiniteInverseIntegerUserGroupOptionType.class.php
index beeeb415a1..835c1887ee 100644
--- a/wcfsetup/install/files/lib/system/option/user/group/InfiniteInverseIntegerUserGroupOptionType.class.php
+++ b/wcfsetup/install/files/lib/system/option/user/group/InfiniteInverseIntegerUserGroupOptionType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option\user\group;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/option/user/group/IntegerUserGroupOptionType.class.php b/wcfsetup/install/files/lib/system/option/user/group/IntegerUserGroupOptionType.class.php
index a3a1183a69..c828a73ceb 100644
--- a/wcfsetup/install/files/lib/system/option/user/group/IntegerUserGroupOptionType.class.php
+++ b/wcfsetup/install/files/lib/system/option/user/group/IntegerUserGroupOptionType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option\user\group;
 use wcf\system\option\IntegerOptionType;
 
diff --git a/wcfsetup/install/files/lib/system/option/user/group/InverseIntegerUserGroupOptionType.class.php b/wcfsetup/install/files/lib/system/option/user/group/InverseIntegerUserGroupOptionType.class.php
index 0441eb4f4d..5a8a14fe6e 100644
--- a/wcfsetup/install/files/lib/system/option/user/group/InverseIntegerUserGroupOptionType.class.php
+++ b/wcfsetup/install/files/lib/system/option/user/group/InverseIntegerUserGroupOptionType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option\user\group;
 use wcf\system\option\IntegerOptionType;
 
diff --git a/wcfsetup/install/files/lib/system/option/user/group/TUserGroupOptionType.class.php b/wcfsetup/install/files/lib/system/option/user/group/TUserGroupOptionType.class.php
index cdb9b77dbb..89899bfe17 100644
--- a/wcfsetup/install/files/lib/system/option/user/group/TUserGroupOptionType.class.php
+++ b/wcfsetup/install/files/lib/system/option/user/group/TUserGroupOptionType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option\user\group;
 use wcf\data\user\group\UserGroup;
 
diff --git a/wcfsetup/install/files/lib/system/option/user/group/TextUserGroupOptionType.class.php b/wcfsetup/install/files/lib/system/option/user/group/TextUserGroupOptionType.class.php
index cd05e4eccf..06925105d7 100644
--- a/wcfsetup/install/files/lib/system/option/user/group/TextUserGroupOptionType.class.php
+++ b/wcfsetup/install/files/lib/system/option/user/group/TextUserGroupOptionType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option\user\group;
 use wcf\system\option\TextOptionType;
 use wcf\util\StringUtil;
diff --git a/wcfsetup/install/files/lib/system/option/user/group/TextareaUserGroupOptionType.class.php b/wcfsetup/install/files/lib/system/option/user/group/TextareaUserGroupOptionType.class.php
index ccd9388740..e72966eb87 100644
--- a/wcfsetup/install/files/lib/system/option/user/group/TextareaUserGroupOptionType.class.php
+++ b/wcfsetup/install/files/lib/system/option/user/group/TextareaUserGroupOptionType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option\user\group;
 use wcf\system\option\TextareaOptionType;
 use wcf\util\StringUtil;
diff --git a/wcfsetup/install/files/lib/system/option/user/group/UserGroupOptionHandler.class.php b/wcfsetup/install/files/lib/system/option/user/group/UserGroupOptionHandler.class.php
index 7fcb1ed263..45ae9ca9b5 100644
--- a/wcfsetup/install/files/lib/system/option/user/group/UserGroupOptionHandler.class.php
+++ b/wcfsetup/install/files/lib/system/option/user/group/UserGroupOptionHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option\user\group;
 use wcf\data\option\Option;
 use wcf\data\user\group\UserGroup;
diff --git a/wcfsetup/install/files/lib/system/option/user/group/UserGroupsUserGroupOptionType.class.php b/wcfsetup/install/files/lib/system/option/user/group/UserGroupsUserGroupOptionType.class.php
index 1128f69e48..863bdfe7cf 100644
--- a/wcfsetup/install/files/lib/system/option/user/group/UserGroupsUserGroupOptionType.class.php
+++ b/wcfsetup/install/files/lib/system/option/user/group/UserGroupsUserGroupOptionType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\option\user\group;
 use wcf\data\option\Option;
 use wcf\data\user\group\UserGroup;
diff --git a/wcfsetup/install/files/lib/system/package/ACPTemplatesFileHandler.class.php b/wcfsetup/install/files/lib/system/package/ACPTemplatesFileHandler.class.php
index 0e8c49b37a..323665b17b 100644
--- a/wcfsetup/install/files/lib/system/package/ACPTemplatesFileHandler.class.php
+++ b/wcfsetup/install/files/lib/system/package/ACPTemplatesFileHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package;
 use wcf\data\package\Package;
 use wcf\system\database\util\PreparedStatementConditionBuilder;
diff --git a/wcfsetup/install/files/lib/system/package/FilesFileHandler.class.php b/wcfsetup/install/files/lib/system/package/FilesFileHandler.class.php
index 51b56de862..795b8a646a 100644
--- a/wcfsetup/install/files/lib/system/package/FilesFileHandler.class.php
+++ b/wcfsetup/install/files/lib/system/package/FilesFileHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package;
 use wcf\data\package\Package;
 use wcf\system\database\util\PreparedStatementConditionBuilder;
diff --git a/wcfsetup/install/files/lib/system/package/PackageArchive.class.php b/wcfsetup/install/files/lib/system/package/PackageArchive.class.php
index a1ffdb696d..6942f4a5b7 100644
--- a/wcfsetup/install/files/lib/system/package/PackageArchive.class.php
+++ b/wcfsetup/install/files/lib/system/package/PackageArchive.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package;
 use wcf\data\package\Package;
 use wcf\system\database\util\PreparedStatementConditionBuilder;
diff --git a/wcfsetup/install/files/lib/system/package/PackageInstallationDispatcher.class.php b/wcfsetup/install/files/lib/system/package/PackageInstallationDispatcher.class.php
index 025ccbae59..1446f0a277 100644
--- a/wcfsetup/install/files/lib/system/package/PackageInstallationDispatcher.class.php
+++ b/wcfsetup/install/files/lib/system/package/PackageInstallationDispatcher.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package;
 use wcf\data\application\Application;
 use wcf\data\application\ApplicationEditor;
diff --git a/wcfsetup/install/files/lib/system/package/PackageInstallationFileHandler.class.php b/wcfsetup/install/files/lib/system/package/PackageInstallationFileHandler.class.php
index fff07765c8..3684787d9c 100644
--- a/wcfsetup/install/files/lib/system/package/PackageInstallationFileHandler.class.php
+++ b/wcfsetup/install/files/lib/system/package/PackageInstallationFileHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package;
 use wcf\system\setup\IFileHandler;
 
diff --git a/wcfsetup/install/files/lib/system/package/PackageInstallationFormManager.class.php b/wcfsetup/install/files/lib/system/package/PackageInstallationFormManager.class.php
index 37acd0b88e..f68c899d43 100644
--- a/wcfsetup/install/files/lib/system/package/PackageInstallationFormManager.class.php
+++ b/wcfsetup/install/files/lib/system/package/PackageInstallationFormManager.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package;
 use wcf\data\package\installation\queue\PackageInstallationQueue;
 use wcf\system\form\FormDocument;
diff --git a/wcfsetup/install/files/lib/system/package/PackageInstallationNodeBuilder.class.php b/wcfsetup/install/files/lib/system/package/PackageInstallationNodeBuilder.class.php
index cba9c3ef33..f838dc4651 100644
--- a/wcfsetup/install/files/lib/system/package/PackageInstallationNodeBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/package/PackageInstallationNodeBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package;
 use wcf\data\package\installation\queue\PackageInstallationQueueEditor;
 use wcf\data\package\installation\queue\PackageInstallationQueueList;
diff --git a/wcfsetup/install/files/lib/system/package/PackageInstallationSQLParser.class.php b/wcfsetup/install/files/lib/system/package/PackageInstallationSQLParser.class.php
index aa4a6e1b31..8144622be9 100644
--- a/wcfsetup/install/files/lib/system/package/PackageInstallationSQLParser.class.php
+++ b/wcfsetup/install/files/lib/system/package/PackageInstallationSQLParser.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package;
 use wcf\data\package\Package;
 use wcf\system\database\util\SQLParser;
diff --git a/wcfsetup/install/files/lib/system/package/PackageInstallationScheduler.class.php b/wcfsetup/install/files/lib/system/package/PackageInstallationScheduler.class.php
index 3834d7d79a..ce8b10060c 100644
--- a/wcfsetup/install/files/lib/system/package/PackageInstallationScheduler.class.php
+++ b/wcfsetup/install/files/lib/system/package/PackageInstallationScheduler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package;
 use wcf\data\package\update\server\PackageUpdateServer;
 use wcf\data\package\update\PackageUpdate;
diff --git a/wcfsetup/install/files/lib/system/package/PackageInstallationStep.class.php b/wcfsetup/install/files/lib/system/package/PackageInstallationStep.class.php
index 7a94c72914..6ff25d8f94 100644
--- a/wcfsetup/install/files/lib/system/package/PackageInstallationStep.class.php
+++ b/wcfsetup/install/files/lib/system/package/PackageInstallationStep.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package;
 use wcf\system\form\FormDocument;
 
diff --git a/wcfsetup/install/files/lib/system/package/PackageUninstallationDispatcher.class.php b/wcfsetup/install/files/lib/system/package/PackageUninstallationDispatcher.class.php
index 484eac9f70..e1a157b4d9 100644
--- a/wcfsetup/install/files/lib/system/package/PackageUninstallationDispatcher.class.php
+++ b/wcfsetup/install/files/lib/system/package/PackageUninstallationDispatcher.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package;
 use wcf\data\option\OptionEditor;
 use wcf\data\package\installation\queue\PackageInstallationQueue;
diff --git a/wcfsetup/install/files/lib/system/package/PackageUninstallationNodeBuilder.class.php b/wcfsetup/install/files/lib/system/package/PackageUninstallationNodeBuilder.class.php
index 6c12bdf792..d345533261 100644
--- a/wcfsetup/install/files/lib/system/package/PackageUninstallationNodeBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/package/PackageUninstallationNodeBuilder.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package;
 use wcf\system\WCF;
 
diff --git a/wcfsetup/install/files/lib/system/package/PackageUpdateDispatcher.class.php b/wcfsetup/install/files/lib/system/package/PackageUpdateDispatcher.class.php
index 4bdef4c8ee..83fce7fb96 100644
--- a/wcfsetup/install/files/lib/system/package/PackageUpdateDispatcher.class.php
+++ b/wcfsetup/install/files/lib/system/package/PackageUpdateDispatcher.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package;
 use wcf\data\package\update\server\PackageUpdateServer;
 use wcf\data\package\update\server\PackageUpdateServerEditor;
diff --git a/wcfsetup/install/files/lib/system/package/PackageUpdateUnauthorizedException.class.php b/wcfsetup/install/files/lib/system/package/PackageUpdateUnauthorizedException.class.php
index d3d2053f2a..bddd959814 100644
--- a/wcfsetup/install/files/lib/system/package/PackageUpdateUnauthorizedException.class.php
+++ b/wcfsetup/install/files/lib/system/package/PackageUpdateUnauthorizedException.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package;
 use wcf\data\package\update\server\PackageUpdateServer;
 use wcf\system\exception\UserException;
diff --git a/wcfsetup/install/files/lib/system/package/SplitNodeException.class.php b/wcfsetup/install/files/lib/system/package/SplitNodeException.class.php
index 21f30ac06c..08ac26d811 100644
--- a/wcfsetup/install/files/lib/system/package/SplitNodeException.class.php
+++ b/wcfsetup/install/files/lib/system/package/SplitNodeException.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/package/TemplatesFileHandler.class.php b/wcfsetup/install/files/lib/system/package/TemplatesFileHandler.class.php
index 35d5783721..9b1a126840 100644
--- a/wcfsetup/install/files/lib/system/package/TemplatesFileHandler.class.php
+++ b/wcfsetup/install/files/lib/system/package/TemplatesFileHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package;
 use wcf\system\database\util\PreparedStatementConditionBuilder;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/system/package/plugin/ACLOptionPackageInstallationPlugin.class.php b/wcfsetup/install/files/lib/system/package/plugin/ACLOptionPackageInstallationPlugin.class.php
index 03ecd14e83..8c97a5ee06 100644
--- a/wcfsetup/install/files/lib/system/package/plugin/ACLOptionPackageInstallationPlugin.class.php
+++ b/wcfsetup/install/files/lib/system/package/plugin/ACLOptionPackageInstallationPlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package\plugin;
 use wcf\data\acl\option\ACLOptionEditor;
 use wcf\system\devtools\pip\IIdempotentPackageInstallationPlugin;
diff --git a/wcfsetup/install/files/lib/system/package/plugin/ACPMenuPackageInstallationPlugin.class.php b/wcfsetup/install/files/lib/system/package/plugin/ACPMenuPackageInstallationPlugin.class.php
index 340c1d8c63..29ed7ea44a 100644
--- a/wcfsetup/install/files/lib/system/package/plugin/ACPMenuPackageInstallationPlugin.class.php
+++ b/wcfsetup/install/files/lib/system/package/plugin/ACPMenuPackageInstallationPlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package\plugin;
 use wcf\data\acp\menu\item\ACPMenuItemEditor;
 
diff --git a/wcfsetup/install/files/lib/system/package/plugin/ACPSearchProviderPackageInstallationPlugin.class.php b/wcfsetup/install/files/lib/system/package/plugin/ACPSearchProviderPackageInstallationPlugin.class.php
index e6ed2335a0..d4e3a2c4f5 100644
--- a/wcfsetup/install/files/lib/system/package/plugin/ACPSearchProviderPackageInstallationPlugin.class.php
+++ b/wcfsetup/install/files/lib/system/package/plugin/ACPSearchProviderPackageInstallationPlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package\plugin;
 use wcf\data\acp\search\provider\ACPSearchProviderEditor;
 use wcf\system\cache\builder\ACPSearchProviderCacheBuilder;
diff --git a/wcfsetup/install/files/lib/system/package/plugin/ACPTemplatePackageInstallationPlugin.class.php b/wcfsetup/install/files/lib/system/package/plugin/ACPTemplatePackageInstallationPlugin.class.php
index 4703cc5203..5127647b65 100644
--- a/wcfsetup/install/files/lib/system/package/plugin/ACPTemplatePackageInstallationPlugin.class.php
+++ b/wcfsetup/install/files/lib/system/package/plugin/ACPTemplatePackageInstallationPlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package\plugin;
 use wcf\data\application\Application;
 use wcf\data\package\Package;
diff --git a/wcfsetup/install/files/lib/system/package/plugin/AbstractMenuPackageInstallationPlugin.class.php b/wcfsetup/install/files/lib/system/package/plugin/AbstractMenuPackageInstallationPlugin.class.php
index a6d3b25428..1d81f0eed9 100644
--- a/wcfsetup/install/files/lib/system/package/plugin/AbstractMenuPackageInstallationPlugin.class.php
+++ b/wcfsetup/install/files/lib/system/package/plugin/AbstractMenuPackageInstallationPlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package\plugin;
 use wcf\system\devtools\pip\IIdempotentPackageInstallationPlugin;
 use wcf\system\exception\SystemException;
diff --git a/wcfsetup/install/files/lib/system/package/plugin/AbstractOptionPackageInstallationPlugin.class.php b/wcfsetup/install/files/lib/system/package/plugin/AbstractOptionPackageInstallationPlugin.class.php
index d7a48e32f9..8614294637 100644
--- a/wcfsetup/install/files/lib/system/package/plugin/AbstractOptionPackageInstallationPlugin.class.php
+++ b/wcfsetup/install/files/lib/system/package/plugin/AbstractOptionPackageInstallationPlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package\plugin;
 use wcf\data\package\Package;
 use wcf\system\devtools\pip\IIdempotentPackageInstallationPlugin;
diff --git a/wcfsetup/install/files/lib/system/package/plugin/AbstractPackageInstallationPlugin.class.php b/wcfsetup/install/files/lib/system/package/plugin/AbstractPackageInstallationPlugin.class.php
index 2590f60727..50398f5891 100644
--- a/wcfsetup/install/files/lib/system/package/plugin/AbstractPackageInstallationPlugin.class.php
+++ b/wcfsetup/install/files/lib/system/package/plugin/AbstractPackageInstallationPlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package\plugin;
 use wcf\system\event\EventHandler;
 use wcf\system\package\PackageArchive;
diff --git a/wcfsetup/install/files/lib/system/package/plugin/AbstractXMLPackageInstallationPlugin.class.php b/wcfsetup/install/files/lib/system/package/plugin/AbstractXMLPackageInstallationPlugin.class.php
index 9bbc8719a5..241d6059b4 100644
--- a/wcfsetup/install/files/lib/system/package/plugin/AbstractXMLPackageInstallationPlugin.class.php
+++ b/wcfsetup/install/files/lib/system/package/plugin/AbstractXMLPackageInstallationPlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package\plugin;
 use wcf\system\database\util\PreparedStatementConditionBuilder;
 use wcf\system\exception\SystemException;
diff --git a/wcfsetup/install/files/lib/system/package/plugin/BBCodePackageInstallationPlugin.class.php b/wcfsetup/install/files/lib/system/package/plugin/BBCodePackageInstallationPlugin.class.php
index 24b51ff6cc..c03a3153a4 100644
--- a/wcfsetup/install/files/lib/system/package/plugin/BBCodePackageInstallationPlugin.class.php
+++ b/wcfsetup/install/files/lib/system/package/plugin/BBCodePackageInstallationPlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package\plugin;
 use wcf\data\bbcode\attribute\BBCodeAttributeEditor;
 use wcf\data\bbcode\BBCode;
diff --git a/wcfsetup/install/files/lib/system/package/plugin/BoxPackageInstallationPlugin.class.php b/wcfsetup/install/files/lib/system/package/plugin/BoxPackageInstallationPlugin.class.php
index b977122634..d2784b1c5c 100644
--- a/wcfsetup/install/files/lib/system/package/plugin/BoxPackageInstallationPlugin.class.php
+++ b/wcfsetup/install/files/lib/system/package/plugin/BoxPackageInstallationPlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package\plugin;
 use wcf\data\box\Box;
 use wcf\data\box\BoxEditor;
diff --git a/wcfsetup/install/files/lib/system/package/plugin/ClipboardActionPackageInstallationPlugin.class.php b/wcfsetup/install/files/lib/system/package/plugin/ClipboardActionPackageInstallationPlugin.class.php
index 25c8989dc5..6845623a0e 100644
--- a/wcfsetup/install/files/lib/system/package/plugin/ClipboardActionPackageInstallationPlugin.class.php
+++ b/wcfsetup/install/files/lib/system/package/plugin/ClipboardActionPackageInstallationPlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package\plugin;
 use wcf\data\clipboard\action\ClipboardAction;
 use wcf\data\clipboard\action\ClipboardActionEditor;
diff --git a/wcfsetup/install/files/lib/system/package/plugin/CoreObjectPackageInstallationPlugin.class.php b/wcfsetup/install/files/lib/system/package/plugin/CoreObjectPackageInstallationPlugin.class.php
index de8f727d85..02cf9aabd8 100644
--- a/wcfsetup/install/files/lib/system/package/plugin/CoreObjectPackageInstallationPlugin.class.php
+++ b/wcfsetup/install/files/lib/system/package/plugin/CoreObjectPackageInstallationPlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package\plugin;
 use wcf\data\core\object\CoreObjectEditor;
 use wcf\system\cache\builder\CoreObjectCacheBuilder;
diff --git a/wcfsetup/install/files/lib/system/package/plugin/CronjobPackageInstallationPlugin.class.php b/wcfsetup/install/files/lib/system/package/plugin/CronjobPackageInstallationPlugin.class.php
index b6c1eb3a5e..7ed09cd545 100644
--- a/wcfsetup/install/files/lib/system/package/plugin/CronjobPackageInstallationPlugin.class.php
+++ b/wcfsetup/install/files/lib/system/package/plugin/CronjobPackageInstallationPlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package\plugin;
 use wcf\data\cronjob\Cronjob;
 use wcf\data\cronjob\CronjobEditor;
diff --git a/wcfsetup/install/files/lib/system/package/plugin/EventListenerPackageInstallationPlugin.class.php b/wcfsetup/install/files/lib/system/package/plugin/EventListenerPackageInstallationPlugin.class.php
index 505fdaf5d5..752ea22f4a 100644
--- a/wcfsetup/install/files/lib/system/package/plugin/EventListenerPackageInstallationPlugin.class.php
+++ b/wcfsetup/install/files/lib/system/package/plugin/EventListenerPackageInstallationPlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package\plugin;
 use wcf\data\event\listener\EventListener;
 use wcf\data\event\listener\EventListenerEditor;
diff --git a/wcfsetup/install/files/lib/system/package/plugin/FilePackageInstallationPlugin.class.php b/wcfsetup/install/files/lib/system/package/plugin/FilePackageInstallationPlugin.class.php
index d58a6e0ed0..857b81a06b 100644
--- a/wcfsetup/install/files/lib/system/package/plugin/FilePackageInstallationPlugin.class.php
+++ b/wcfsetup/install/files/lib/system/package/plugin/FilePackageInstallationPlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package\plugin;
 use wcf\data\application\Application;
 use wcf\data\package\Package;
diff --git a/wcfsetup/install/files/lib/system/package/plugin/IPackageInstallationPlugin.class.php b/wcfsetup/install/files/lib/system/package/plugin/IPackageInstallationPlugin.class.php
index f48908ba56..f93d53ad17 100644
--- a/wcfsetup/install/files/lib/system/package/plugin/IPackageInstallationPlugin.class.php
+++ b/wcfsetup/install/files/lib/system/package/plugin/IPackageInstallationPlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package\plugin;
 use wcf\system\package\PackageArchive;
 
diff --git a/wcfsetup/install/files/lib/system/package/plugin/LanguagePackageInstallationPlugin.class.php b/wcfsetup/install/files/lib/system/package/plugin/LanguagePackageInstallationPlugin.class.php
index 2e9aa52f3d..9fb1805df3 100644
--- a/wcfsetup/install/files/lib/system/package/plugin/LanguagePackageInstallationPlugin.class.php
+++ b/wcfsetup/install/files/lib/system/package/plugin/LanguagePackageInstallationPlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package\plugin;
 use wcf\data\language\Language;
 use wcf\data\language\LanguageEditor;
diff --git a/wcfsetup/install/files/lib/system/package/plugin/MediaProviderPackageInstallationPlugin.class.php b/wcfsetup/install/files/lib/system/package/plugin/MediaProviderPackageInstallationPlugin.class.php
index ddc12c9edd..6aee79562b 100644
--- a/wcfsetup/install/files/lib/system/package/plugin/MediaProviderPackageInstallationPlugin.class.php
+++ b/wcfsetup/install/files/lib/system/package/plugin/MediaProviderPackageInstallationPlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package\plugin;
 use wcf\data\bbcode\media\provider\BBCodeMediaProviderEditor;
 use wcf\system\cache\builder\BBCodeMediaProviderCacheBuilder;
diff --git a/wcfsetup/install/files/lib/system/package/plugin/MenuItemPackageInstallationPlugin.class.php b/wcfsetup/install/files/lib/system/package/plugin/MenuItemPackageInstallationPlugin.class.php
index 03adc3abd4..6b2de09be7 100644
--- a/wcfsetup/install/files/lib/system/package/plugin/MenuItemPackageInstallationPlugin.class.php
+++ b/wcfsetup/install/files/lib/system/package/plugin/MenuItemPackageInstallationPlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package\plugin;
 use wcf\data\menu\item\MenuItem;
 use wcf\data\menu\item\MenuItemEditor;
diff --git a/wcfsetup/install/files/lib/system/package/plugin/MenuPackageInstallationPlugin.class.php b/wcfsetup/install/files/lib/system/package/plugin/MenuPackageInstallationPlugin.class.php
index 7605785a64..56bef9bb2f 100644
--- a/wcfsetup/install/files/lib/system/package/plugin/MenuPackageInstallationPlugin.class.php
+++ b/wcfsetup/install/files/lib/system/package/plugin/MenuPackageInstallationPlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package\plugin;
 use wcf\data\box\Box;
 use wcf\data\box\BoxEditor;
diff --git a/wcfsetup/install/files/lib/system/package/plugin/ObjectTypeDefinitionPackageInstallationPlugin.class.php b/wcfsetup/install/files/lib/system/package/plugin/ObjectTypeDefinitionPackageInstallationPlugin.class.php
index be225c0736..7228e99a70 100644
--- a/wcfsetup/install/files/lib/system/package/plugin/ObjectTypeDefinitionPackageInstallationPlugin.class.php
+++ b/wcfsetup/install/files/lib/system/package/plugin/ObjectTypeDefinitionPackageInstallationPlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package\plugin;
 use wcf\data\object\type\definition\ObjectTypeDefinitionEditor;
 use wcf\system\devtools\pip\IIdempotentPackageInstallationPlugin;
diff --git a/wcfsetup/install/files/lib/system/package/plugin/ObjectTypePackageInstallationPlugin.class.php b/wcfsetup/install/files/lib/system/package/plugin/ObjectTypePackageInstallationPlugin.class.php
index 6ddf6a86a5..24e1cca27a 100644
--- a/wcfsetup/install/files/lib/system/package/plugin/ObjectTypePackageInstallationPlugin.class.php
+++ b/wcfsetup/install/files/lib/system/package/plugin/ObjectTypePackageInstallationPlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package\plugin;
 use wcf\data\object\type\ObjectTypeEditor;
 use wcf\system\devtools\pip\IIdempotentPackageInstallationPlugin;
diff --git a/wcfsetup/install/files/lib/system/package/plugin/OptionPackageInstallationPlugin.class.php b/wcfsetup/install/files/lib/system/package/plugin/OptionPackageInstallationPlugin.class.php
index 99d69304cb..871269e905 100644
--- a/wcfsetup/install/files/lib/system/package/plugin/OptionPackageInstallationPlugin.class.php
+++ b/wcfsetup/install/files/lib/system/package/plugin/OptionPackageInstallationPlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package\plugin;
 use wcf\data\option\Option;
 use wcf\data\option\OptionEditor;
diff --git a/wcfsetup/install/files/lib/system/package/plugin/PIPPackageInstallationPlugin.class.php b/wcfsetup/install/files/lib/system/package/plugin/PIPPackageInstallationPlugin.class.php
index 121ff5d1e0..446229a119 100644
--- a/wcfsetup/install/files/lib/system/package/plugin/PIPPackageInstallationPlugin.class.php
+++ b/wcfsetup/install/files/lib/system/package/plugin/PIPPackageInstallationPlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package\plugin;
 use wcf\data\package\installation\plugin\PackageInstallationPluginEditor;
 use wcf\system\devtools\pip\IIdempotentPackageInstallationPlugin;
diff --git a/wcfsetup/install/files/lib/system/package/plugin/PagePackageInstallationPlugin.class.php b/wcfsetup/install/files/lib/system/package/plugin/PagePackageInstallationPlugin.class.php
index 7098a9f744..86cb196371 100644
--- a/wcfsetup/install/files/lib/system/package/plugin/PagePackageInstallationPlugin.class.php
+++ b/wcfsetup/install/files/lib/system/package/plugin/PagePackageInstallationPlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package\plugin;
 use wcf\data\package\PackageCache;
 use wcf\data\page\Page;
diff --git a/wcfsetup/install/files/lib/system/package/plugin/SQLPackageInstallationPlugin.class.php b/wcfsetup/install/files/lib/system/package/plugin/SQLPackageInstallationPlugin.class.php
index a5176d0c62..3b921ab613 100644
--- a/wcfsetup/install/files/lib/system/package/plugin/SQLPackageInstallationPlugin.class.php
+++ b/wcfsetup/install/files/lib/system/package/plugin/SQLPackageInstallationPlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package\plugin;
 use wcf\system\application\ApplicationHandler;
 use wcf\system\exception\SystemException;
diff --git a/wcfsetup/install/files/lib/system/package/plugin/ScriptPackageInstallationPlugin.class.php b/wcfsetup/install/files/lib/system/package/plugin/ScriptPackageInstallationPlugin.class.php
index d397bae993..4146b41c8a 100644
--- a/wcfsetup/install/files/lib/system/package/plugin/ScriptPackageInstallationPlugin.class.php
+++ b/wcfsetup/install/files/lib/system/package/plugin/ScriptPackageInstallationPlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package\plugin;
 use wcf\system\cache\CacheHandler;
 use wcf\system\exception\SystemException;
diff --git a/wcfsetup/install/files/lib/system/package/plugin/SmileyPackageInstallationPlugin.class.php b/wcfsetup/install/files/lib/system/package/plugin/SmileyPackageInstallationPlugin.class.php
index 0bf9f934bb..d51a5e2105 100644
--- a/wcfsetup/install/files/lib/system/package/plugin/SmileyPackageInstallationPlugin.class.php
+++ b/wcfsetup/install/files/lib/system/package/plugin/SmileyPackageInstallationPlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package\plugin;
 use wcf\data\smiley\SmileyEditor;
 use wcf\system\devtools\pip\IIdempotentPackageInstallationPlugin;
diff --git a/wcfsetup/install/files/lib/system/package/plugin/StylePackageInstallationPlugin.class.php b/wcfsetup/install/files/lib/system/package/plugin/StylePackageInstallationPlugin.class.php
index e0adfc825a..37c342760f 100644
--- a/wcfsetup/install/files/lib/system/package/plugin/StylePackageInstallationPlugin.class.php
+++ b/wcfsetup/install/files/lib/system/package/plugin/StylePackageInstallationPlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package\plugin;
 use wcf\data\style\StyleEditor;
 use wcf\data\style\StyleList;
diff --git a/wcfsetup/install/files/lib/system/package/plugin/TemplateListenerPackageInstallationPlugin.class.php b/wcfsetup/install/files/lib/system/package/plugin/TemplateListenerPackageInstallationPlugin.class.php
index 6ce8a75ae5..d8789b6afa 100644
--- a/wcfsetup/install/files/lib/system/package/plugin/TemplateListenerPackageInstallationPlugin.class.php
+++ b/wcfsetup/install/files/lib/system/package/plugin/TemplateListenerPackageInstallationPlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package\plugin;
 use wcf\data\template\listener\TemplateListenerEditor;
 use wcf\system\cache\builder\TemplateListenerCodeCacheBuilder;
diff --git a/wcfsetup/install/files/lib/system/package/plugin/TemplatePackageInstallationPlugin.class.php b/wcfsetup/install/files/lib/system/package/plugin/TemplatePackageInstallationPlugin.class.php
index ab8f52349a..f50420eda2 100644
--- a/wcfsetup/install/files/lib/system/package/plugin/TemplatePackageInstallationPlugin.class.php
+++ b/wcfsetup/install/files/lib/system/package/plugin/TemplatePackageInstallationPlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package\plugin;
 use wcf\data\application\Application;
 use wcf\data\package\Package;
diff --git a/wcfsetup/install/files/lib/system/package/plugin/UserGroupOptionPackageInstallationPlugin.class.php b/wcfsetup/install/files/lib/system/package/plugin/UserGroupOptionPackageInstallationPlugin.class.php
index 9411419ada..8942b26523 100644
--- a/wcfsetup/install/files/lib/system/package/plugin/UserGroupOptionPackageInstallationPlugin.class.php
+++ b/wcfsetup/install/files/lib/system/package/plugin/UserGroupOptionPackageInstallationPlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package\plugin;
 use wcf\data\user\group\option\UserGroupOption;
 use wcf\data\user\group\option\UserGroupOptionEditor;
diff --git a/wcfsetup/install/files/lib/system/package/plugin/UserMenuPackageInstallationPlugin.class.php b/wcfsetup/install/files/lib/system/package/plugin/UserMenuPackageInstallationPlugin.class.php
index 34a2e9712c..acfbabfbb3 100644
--- a/wcfsetup/install/files/lib/system/package/plugin/UserMenuPackageInstallationPlugin.class.php
+++ b/wcfsetup/install/files/lib/system/package/plugin/UserMenuPackageInstallationPlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package\plugin;
 use wcf\data\user\menu\item\UserMenuItemEditor;
 
diff --git a/wcfsetup/install/files/lib/system/package/plugin/UserNotificationEventPackageInstallationPlugin.class.php b/wcfsetup/install/files/lib/system/package/plugin/UserNotificationEventPackageInstallationPlugin.class.php
index 4b9f2f217c..c9f3f9a06d 100644
--- a/wcfsetup/install/files/lib/system/package/plugin/UserNotificationEventPackageInstallationPlugin.class.php
+++ b/wcfsetup/install/files/lib/system/package/plugin/UserNotificationEventPackageInstallationPlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package\plugin;
 use wcf\data\user\notification\event\UserNotificationEvent;
 use wcf\data\user\notification\event\UserNotificationEventEditor;
diff --git a/wcfsetup/install/files/lib/system/package/plugin/UserOptionPackageInstallationPlugin.class.php b/wcfsetup/install/files/lib/system/package/plugin/UserOptionPackageInstallationPlugin.class.php
index a25e0c1ba2..8aac2d462b 100644
--- a/wcfsetup/install/files/lib/system/package/plugin/UserOptionPackageInstallationPlugin.class.php
+++ b/wcfsetup/install/files/lib/system/package/plugin/UserOptionPackageInstallationPlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package\plugin;
 use wcf\data\user\option\category\UserOptionCategory;
 use wcf\data\user\option\category\UserOptionCategoryEditor;
diff --git a/wcfsetup/install/files/lib/system/package/plugin/UserProfileMenuPackageInstallationPlugin.class.php b/wcfsetup/install/files/lib/system/package/plugin/UserProfileMenuPackageInstallationPlugin.class.php
index e198991f98..f21c879881 100644
--- a/wcfsetup/install/files/lib/system/package/plugin/UserProfileMenuPackageInstallationPlugin.class.php
+++ b/wcfsetup/install/files/lib/system/package/plugin/UserProfileMenuPackageInstallationPlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package\plugin;
 use wcf\data\user\profile\menu\item\UserProfileMenuItemEditor;
 use wcf\system\devtools\pip\IIdempotentPackageInstallationPlugin;
diff --git a/wcfsetup/install/files/lib/system/package/validation/PackageValidationArchive.class.php b/wcfsetup/install/files/lib/system/package/validation/PackageValidationArchive.class.php
index b6bd0a2cdf..936d5667f5 100644
--- a/wcfsetup/install/files/lib/system/package/validation/PackageValidationArchive.class.php
+++ b/wcfsetup/install/files/lib/system/package/validation/PackageValidationArchive.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package\validation;
 use wcf\data\package\Package;
 use wcf\data\package\PackageCache;
diff --git a/wcfsetup/install/files/lib/system/package/validation/PackageValidationException.class.php b/wcfsetup/install/files/lib/system/package/validation/PackageValidationException.class.php
index 7155bdbc02..15cbacd64a 100644
--- a/wcfsetup/install/files/lib/system/package/validation/PackageValidationException.class.php
+++ b/wcfsetup/install/files/lib/system/package/validation/PackageValidationException.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package\validation;
 use wcf\system\exception\SystemException;
 use wcf\system\package\PackageArchive;
diff --git a/wcfsetup/install/files/lib/system/package/validation/PackageValidationManager.class.php b/wcfsetup/install/files/lib/system/package/validation/PackageValidationManager.class.php
index 5844a1ce00..91f467dd81 100644
--- a/wcfsetup/install/files/lib/system/package/validation/PackageValidationManager.class.php
+++ b/wcfsetup/install/files/lib/system/package/validation/PackageValidationManager.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\package\validation;
 use wcf\data\package\installation\plugin\PackageInstallationPluginList;
 use wcf\data\package\Package;
diff --git a/wcfsetup/install/files/lib/system/page/PageLocationManager.class.php b/wcfsetup/install/files/lib/system/page/PageLocationManager.class.php
index 2c80e997c8..9a7de32d76 100644
--- a/wcfsetup/install/files/lib/system/page/PageLocationManager.class.php
+++ b/wcfsetup/install/files/lib/system/page/PageLocationManager.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\page;
 use wcf\data\page\PageCache;
 use wcf\data\ITitledLinkObject;
diff --git a/wcfsetup/install/files/lib/system/page/ParentPageLocation.class.php b/wcfsetup/install/files/lib/system/page/ParentPageLocation.class.php
index 82585c4647..055dae3856 100644
--- a/wcfsetup/install/files/lib/system/page/ParentPageLocation.class.php
+++ b/wcfsetup/install/files/lib/system/page/ParentPageLocation.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\page;
 use wcf\data\ITitledLinkObject;
 
diff --git a/wcfsetup/install/files/lib/system/page/handler/AbstractLookupPageHandler.class.php b/wcfsetup/install/files/lib/system/page/handler/AbstractLookupPageHandler.class.php
index 10a3acfb85..a50f41ffe8 100644
--- a/wcfsetup/install/files/lib/system/page/handler/AbstractLookupPageHandler.class.php
+++ b/wcfsetup/install/files/lib/system/page/handler/AbstractLookupPageHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\page\handler;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/page/handler/AbstractMenuPageHandler.class.php b/wcfsetup/install/files/lib/system/page/handler/AbstractMenuPageHandler.class.php
index 7fd750fb52..048e06a93f 100644
--- a/wcfsetup/install/files/lib/system/page/handler/AbstractMenuPageHandler.class.php
+++ b/wcfsetup/install/files/lib/system/page/handler/AbstractMenuPageHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\page\handler;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/page/handler/ArticleListPageHandler.class.php b/wcfsetup/install/files/lib/system/page/handler/ArticleListPageHandler.class.php
index b022cf95f2..c77eab34b2 100644
--- a/wcfsetup/install/files/lib/system/page/handler/ArticleListPageHandler.class.php
+++ b/wcfsetup/install/files/lib/system/page/handler/ArticleListPageHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\page\handler;
 use wcf\data\article\ViewableArticle;
 
diff --git a/wcfsetup/install/files/lib/system/page/handler/ArticlePageHandler.class.php b/wcfsetup/install/files/lib/system/page/handler/ArticlePageHandler.class.php
index d7d9c33995..4855657b44 100644
--- a/wcfsetup/install/files/lib/system/page/handler/ArticlePageHandler.class.php
+++ b/wcfsetup/install/files/lib/system/page/handler/ArticlePageHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\page\handler;
 use wcf\data\article\ViewableArticleList;
 use wcf\data\page\Page;
diff --git a/wcfsetup/install/files/lib/system/page/handler/CategoryArticleListPageHandler.class.php b/wcfsetup/install/files/lib/system/page/handler/CategoryArticleListPageHandler.class.php
index 8088cccea0..443dc4eff6 100644
--- a/wcfsetup/install/files/lib/system/page/handler/CategoryArticleListPageHandler.class.php
+++ b/wcfsetup/install/files/lib/system/page/handler/CategoryArticleListPageHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\page\handler;
 use wcf\data\article\category\ArticleCategory;
 
diff --git a/wcfsetup/install/files/lib/system/page/handler/ILookupPageHandler.class.php b/wcfsetup/install/files/lib/system/page/handler/ILookupPageHandler.class.php
index 5da082b6b5..3c1a5bebf2 100644
--- a/wcfsetup/install/files/lib/system/page/handler/ILookupPageHandler.class.php
+++ b/wcfsetup/install/files/lib/system/page/handler/ILookupPageHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\page\handler;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/page/handler/IMenuPageHandler.class.php b/wcfsetup/install/files/lib/system/page/handler/IMenuPageHandler.class.php
index 4906e20b6a..8a07f6533d 100644
--- a/wcfsetup/install/files/lib/system/page/handler/IMenuPageHandler.class.php
+++ b/wcfsetup/install/files/lib/system/page/handler/IMenuPageHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\page\handler;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/page/handler/IOnlineLocationPageHandler.class.php b/wcfsetup/install/files/lib/system/page/handler/IOnlineLocationPageHandler.class.php
index 6cec7c8795..25b857e7fd 100644
--- a/wcfsetup/install/files/lib/system/page/handler/IOnlineLocationPageHandler.class.php
+++ b/wcfsetup/install/files/lib/system/page/handler/IOnlineLocationPageHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\page\handler;
 use wcf\data\page\Page;
 use wcf\data\user\online\UserOnline;
diff --git a/wcfsetup/install/files/lib/system/page/handler/TDecoratedCategoryLookupPageHandler.class.php b/wcfsetup/install/files/lib/system/page/handler/TDecoratedCategoryLookupPageHandler.class.php
index d48a896bef..d96411b80e 100644
--- a/wcfsetup/install/files/lib/system/page/handler/TDecoratedCategoryLookupPageHandler.class.php
+++ b/wcfsetup/install/files/lib/system/page/handler/TDecoratedCategoryLookupPageHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\page\handler;
 use wcf\data\category\AbstractDecoratedCategory;
 use wcf\data\object\type\ObjectTypeCache;
diff --git a/wcfsetup/install/files/lib/system/page/handler/TDecoratedCategoryMenuPageHandler.class.php b/wcfsetup/install/files/lib/system/page/handler/TDecoratedCategoryMenuPageHandler.class.php
index f70f85c9f7..a63fb4e0e2 100644
--- a/wcfsetup/install/files/lib/system/page/handler/TDecoratedCategoryMenuPageHandler.class.php
+++ b/wcfsetup/install/files/lib/system/page/handler/TDecoratedCategoryMenuPageHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\page\handler;
 use wcf\data\category\AbstractDecoratedCategory;
 use wcf\data\IAccessibleObject;
diff --git a/wcfsetup/install/files/lib/system/page/handler/TDecoratedCategoryOnlineLocationLookupPageHandler.class.php b/wcfsetup/install/files/lib/system/page/handler/TDecoratedCategoryOnlineLocationLookupPageHandler.class.php
index f15eba0482..997857e44d 100644
--- a/wcfsetup/install/files/lib/system/page/handler/TDecoratedCategoryOnlineLocationLookupPageHandler.class.php
+++ b/wcfsetup/install/files/lib/system/page/handler/TDecoratedCategoryOnlineLocationLookupPageHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\page\handler;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/page/handler/TDecoratedCategoryOnlineLocationPageHandler.class.php b/wcfsetup/install/files/lib/system/page/handler/TDecoratedCategoryOnlineLocationPageHandler.class.php
index b9a475e0a8..84b5902419 100644
--- a/wcfsetup/install/files/lib/system/page/handler/TDecoratedCategoryOnlineLocationPageHandler.class.php
+++ b/wcfsetup/install/files/lib/system/page/handler/TDecoratedCategoryOnlineLocationPageHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\page\handler;
 use wcf\data\category\AbstractDecoratedCategory;
 use wcf\data\page\Page;
diff --git a/wcfsetup/install/files/lib/system/page/handler/TOnlineLocationPageHandler.class.php b/wcfsetup/install/files/lib/system/page/handler/TOnlineLocationPageHandler.class.php
index 8c74dab848..24e2251cc2 100644
--- a/wcfsetup/install/files/lib/system/page/handler/TOnlineLocationPageHandler.class.php
+++ b/wcfsetup/install/files/lib/system/page/handler/TOnlineLocationPageHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\page\handler;
 use wcf\data\page\Page;
 use wcf\data\user\online\UserOnline;
diff --git a/wcfsetup/install/files/lib/system/page/handler/TUserLookupPageHandler.class.php b/wcfsetup/install/files/lib/system/page/handler/TUserLookupPageHandler.class.php
index 04effb1131..5ed4d73417 100644
--- a/wcfsetup/install/files/lib/system/page/handler/TUserLookupPageHandler.class.php
+++ b/wcfsetup/install/files/lib/system/page/handler/TUserLookupPageHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\page\handler;
 use wcf\data\user\UserProfileList;
 use wcf\system\cache\runtime\UserRuntimeCache;
diff --git a/wcfsetup/install/files/lib/system/page/handler/TUserOnlineLocationPageHandler.class.php b/wcfsetup/install/files/lib/system/page/handler/TUserOnlineLocationPageHandler.class.php
index 85d849d539..a62e65d99f 100644
--- a/wcfsetup/install/files/lib/system/page/handler/TUserOnlineLocationPageHandler.class.php
+++ b/wcfsetup/install/files/lib/system/page/handler/TUserOnlineLocationPageHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\page\handler;
 use wcf\data\page\Page;
 use wcf\data\user\online\UserOnline;
diff --git a/wcfsetup/install/files/lib/system/page/handler/TrophyListPageHandler.class.php b/wcfsetup/install/files/lib/system/page/handler/TrophyListPageHandler.class.php
index f466312636..a676c762e7 100644
--- a/wcfsetup/install/files/lib/system/page/handler/TrophyListPageHandler.class.php
+++ b/wcfsetup/install/files/lib/system/page/handler/TrophyListPageHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\page\handler;
 use wcf\data\trophy\category\TrophyCategory;
 
diff --git a/wcfsetup/install/files/lib/system/page/handler/TrophyPageHandler.class.php b/wcfsetup/install/files/lib/system/page/handler/TrophyPageHandler.class.php
index e24c46c07c..3c862d8230 100644
--- a/wcfsetup/install/files/lib/system/page/handler/TrophyPageHandler.class.php
+++ b/wcfsetup/install/files/lib/system/page/handler/TrophyPageHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\page\handler;
 use wcf\data\trophy\TrophyCache;
 use wcf\data\trophy\TrophyList;
diff --git a/wcfsetup/install/files/lib/system/page/handler/UserPageHandler.class.php b/wcfsetup/install/files/lib/system/page/handler/UserPageHandler.class.php
index d665cc34fc..e6577bdf42 100644
--- a/wcfsetup/install/files/lib/system/page/handler/UserPageHandler.class.php
+++ b/wcfsetup/install/files/lib/system/page/handler/UserPageHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\page\handler;
 use wcf\system\cache\runtime\UserRuntimeCache;
 
diff --git a/wcfsetup/install/files/lib/system/payment/method/AbstractPaymentMethod.class.php b/wcfsetup/install/files/lib/system/payment/method/AbstractPaymentMethod.class.php
index 5f95824427..9e212bef87 100644
--- a/wcfsetup/install/files/lib/system/payment/method/AbstractPaymentMethod.class.php
+++ b/wcfsetup/install/files/lib/system/payment/method/AbstractPaymentMethod.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\payment\method;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/payment/method/IPaymentMethod.class.php b/wcfsetup/install/files/lib/system/payment/method/IPaymentMethod.class.php
index cba2d7fd3b..ec3681964e 100644
--- a/wcfsetup/install/files/lib/system/payment/method/IPaymentMethod.class.php
+++ b/wcfsetup/install/files/lib/system/payment/method/IPaymentMethod.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\payment\method;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/payment/method/PaymentMethodHandler.class.php b/wcfsetup/install/files/lib/system/payment/method/PaymentMethodHandler.class.php
index 4feefc1fb0..a22f156268 100644
--- a/wcfsetup/install/files/lib/system/payment/method/PaymentMethodHandler.class.php
+++ b/wcfsetup/install/files/lib/system/payment/method/PaymentMethodHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\payment\method;
 use wcf\data\object\type\ObjectType;
 use wcf\data\object\type\ObjectTypeCache;
diff --git a/wcfsetup/install/files/lib/system/payment/method/PaypalPaymentMethod.class.php b/wcfsetup/install/files/lib/system/payment/method/PaypalPaymentMethod.class.php
index 6012da2b67..9ada7b824f 100644
--- a/wcfsetup/install/files/lib/system/payment/method/PaypalPaymentMethod.class.php
+++ b/wcfsetup/install/files/lib/system/payment/method/PaypalPaymentMethod.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\payment\method;
 use wcf\system\request\LinkHandler;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/system/payment/type/AbstractPaymentType.class.php b/wcfsetup/install/files/lib/system/payment/type/AbstractPaymentType.class.php
index 621c4f0088..19b26f56cf 100644
--- a/wcfsetup/install/files/lib/system/payment/type/AbstractPaymentType.class.php
+++ b/wcfsetup/install/files/lib/system/payment/type/AbstractPaymentType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\payment\type;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/payment/type/IPaymentType.class.php b/wcfsetup/install/files/lib/system/payment/type/IPaymentType.class.php
index 0b7e899d1a..010c02da78 100644
--- a/wcfsetup/install/files/lib/system/payment/type/IPaymentType.class.php
+++ b/wcfsetup/install/files/lib/system/payment/type/IPaymentType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\payment\type;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/payment/type/PaidSubscriptionPaymentType.class.php b/wcfsetup/install/files/lib/system/payment/type/PaidSubscriptionPaymentType.class.php
index 04667f2abf..c18d373088 100644
--- a/wcfsetup/install/files/lib/system/payment/type/PaidSubscriptionPaymentType.class.php
+++ b/wcfsetup/install/files/lib/system/payment/type/PaidSubscriptionPaymentType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\payment\type;
 use wcf\data\paid\subscription\transaction\log\PaidSubscriptionTransactionLog;
 use wcf\data\paid\subscription\transaction\log\PaidSubscriptionTransactionLogAction;
diff --git a/wcfsetup/install/files/lib/system/poll/AbstractPollHandler.class.php b/wcfsetup/install/files/lib/system/poll/AbstractPollHandler.class.php
index 133c4c2a10..03a14c3260 100644
--- a/wcfsetup/install/files/lib/system/poll/AbstractPollHandler.class.php
+++ b/wcfsetup/install/files/lib/system/poll/AbstractPollHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\poll;
 use wcf\system\SingletonFactory;
 
diff --git a/wcfsetup/install/files/lib/system/poll/IPollHandler.class.php b/wcfsetup/install/files/lib/system/poll/IPollHandler.class.php
index b3aaea5faf..ea5d7ca397 100644
--- a/wcfsetup/install/files/lib/system/poll/IPollHandler.class.php
+++ b/wcfsetup/install/files/lib/system/poll/IPollHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\poll;
 use wcf\data\poll\Poll;
 
diff --git a/wcfsetup/install/files/lib/system/poll/PollManager.class.php b/wcfsetup/install/files/lib/system/poll/PollManager.class.php
index acf68acbfb..34e8e65aba 100644
--- a/wcfsetup/install/files/lib/system/poll/PollManager.class.php
+++ b/wcfsetup/install/files/lib/system/poll/PollManager.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\poll;
 use wcf\data\object\type\ObjectType;
 use wcf\data\object\type\ObjectTypeCache;
diff --git a/wcfsetup/install/files/lib/system/recaptcha/RecaptchaHandler.class.php b/wcfsetup/install/files/lib/system/recaptcha/RecaptchaHandler.class.php
index 0d049219cc..af58bf97b1 100644
--- a/wcfsetup/install/files/lib/system/recaptcha/RecaptchaHandler.class.php
+++ b/wcfsetup/install/files/lib/system/recaptcha/RecaptchaHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\recaptcha;
 use wcf\system\exception\SystemException;
 use wcf\system\exception\UserInputException;
diff --git a/wcfsetup/install/files/lib/system/recaptcha/RecaptchaHandlerV2.class.php b/wcfsetup/install/files/lib/system/recaptcha/RecaptchaHandlerV2.class.php
index 803b00deb3..0b6ccf5135 100644
--- a/wcfsetup/install/files/lib/system/recaptcha/RecaptchaHandlerV2.class.php
+++ b/wcfsetup/install/files/lib/system/recaptcha/RecaptchaHandlerV2.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\recaptcha;
 use wcf\system\exception\UserInputException;
 use wcf\system\SingletonFactory;
diff --git a/wcfsetup/install/files/lib/system/registry/RegistryHandler.class.php b/wcfsetup/install/files/lib/system/registry/RegistryHandler.class.php
index ca34be99f1..25715bcd2a 100644
--- a/wcfsetup/install/files/lib/system/registry/RegistryHandler.class.php
+++ b/wcfsetup/install/files/lib/system/registry/RegistryHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\registry;
 use wcf\data\package\PackageCache;
 use wcf\system\database\util\PreparedStatementConditionBuilder;
diff --git a/wcfsetup/install/files/lib/system/request/ControllerMap.class.php b/wcfsetup/install/files/lib/system/request/ControllerMap.class.php
index 60a988beb0..ecb1fe3e91 100644
--- a/wcfsetup/install/files/lib/system/request/ControllerMap.class.php
+++ b/wcfsetup/install/files/lib/system/request/ControllerMap.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\request;
 use wcf\page\CmsPage;
 use wcf\system\cache\builder\RoutingCacheBuilder;
diff --git a/wcfsetup/install/files/lib/system/request/IRouteController.class.php b/wcfsetup/install/files/lib/system/request/IRouteController.class.php
index 0be0f33079..3c68fff2b0 100644
--- a/wcfsetup/install/files/lib/system/request/IRouteController.class.php
+++ b/wcfsetup/install/files/lib/system/request/IRouteController.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\request;
 use wcf\data\ITitledObject;
 
diff --git a/wcfsetup/install/files/lib/system/request/LinkHandler.class.php b/wcfsetup/install/files/lib/system/request/LinkHandler.class.php
index 06a7699036..9ceb5a8268 100644
--- a/wcfsetup/install/files/lib/system/request/LinkHandler.class.php
+++ b/wcfsetup/install/files/lib/system/request/LinkHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\request;
 use wcf\data\page\PageCache;
 use wcf\data\DatabaseObjectDecorator;
diff --git a/wcfsetup/install/files/lib/system/request/Request.class.php b/wcfsetup/install/files/lib/system/request/Request.class.php
index 91817daa02..e9ffe8a9a4 100644
--- a/wcfsetup/install/files/lib/system/request/Request.class.php
+++ b/wcfsetup/install/files/lib/system/request/Request.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\request;
 use wcf\data\page\PageCache;
 
diff --git a/wcfsetup/install/files/lib/system/request/RequestHandler.class.php b/wcfsetup/install/files/lib/system/request/RequestHandler.class.php
index cbcead538e..f4cde8da11 100644
--- a/wcfsetup/install/files/lib/system/request/RequestHandler.class.php
+++ b/wcfsetup/install/files/lib/system/request/RequestHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\request;
 use wcf\system\application\ApplicationHandler;
 use wcf\system\box\BoxHandler;
diff --git a/wcfsetup/install/files/lib/system/request/RouteHandler.class.php b/wcfsetup/install/files/lib/system/request/RouteHandler.class.php
index 2adc0590cc..9b0e58828c 100644
--- a/wcfsetup/install/files/lib/system/request/RouteHandler.class.php
+++ b/wcfsetup/install/files/lib/system/request/RouteHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\request;
 use wcf\system\application\ApplicationHandler;
 use wcf\system\event\EventHandler;
diff --git a/wcfsetup/install/files/lib/system/request/route/DynamicRequestRoute.class.php b/wcfsetup/install/files/lib/system/request/route/DynamicRequestRoute.class.php
index ab2b13dabd..c2d3c45616 100644
--- a/wcfsetup/install/files/lib/system/request/route/DynamicRequestRoute.class.php
+++ b/wcfsetup/install/files/lib/system/request/route/DynamicRequestRoute.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\request\route;
 use wcf\system\request\ControllerMap;
 use wcf\system\request\RequestHandler;
diff --git a/wcfsetup/install/files/lib/system/request/route/IRequestRoute.class.php b/wcfsetup/install/files/lib/system/request/route/IRequestRoute.class.php
index a2d3df8fbd..88d5f11ff7 100644
--- a/wcfsetup/install/files/lib/system/request/route/IRequestRoute.class.php
+++ b/wcfsetup/install/files/lib/system/request/route/IRequestRoute.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\request\route;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/request/route/LookupRequestRoute.class.php b/wcfsetup/install/files/lib/system/request/route/LookupRequestRoute.class.php
index b4d8e6751d..39e1ac20d5 100644
--- a/wcfsetup/install/files/lib/system/request/route/LookupRequestRoute.class.php
+++ b/wcfsetup/install/files/lib/system/request/route/LookupRequestRoute.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\request\route;
 use wcf\system\application\ApplicationHandler;
 use wcf\system\request\ControllerMap;
diff --git a/wcfsetup/install/files/lib/system/request/route/StaticRequestRoute.class.php b/wcfsetup/install/files/lib/system/request/route/StaticRequestRoute.class.php
index 85a1f5cc06..7684cff49f 100644
--- a/wcfsetup/install/files/lib/system/request/route/StaticRequestRoute.class.php
+++ b/wcfsetup/install/files/lib/system/request/route/StaticRequestRoute.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\request\route;
 use wcf\system\request\ControllerMap;
 
diff --git a/wcfsetup/install/files/lib/system/search/AbstractSearchEngine.class.php b/wcfsetup/install/files/lib/system/search/AbstractSearchEngine.class.php
index 6ff7f08e80..0604913f23 100644
--- a/wcfsetup/install/files/lib/system/search/AbstractSearchEngine.class.php
+++ b/wcfsetup/install/files/lib/system/search/AbstractSearchEngine.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\search;
 use wcf\system\database\util\PreparedStatementConditionBuilder;
 use wcf\system\SingletonFactory;
diff --git a/wcfsetup/install/files/lib/system/search/AbstractSearchIndexManager.class.php b/wcfsetup/install/files/lib/system/search/AbstractSearchIndexManager.class.php
index 57f6a769ba..0e54e257b0 100644
--- a/wcfsetup/install/files/lib/system/search/AbstractSearchIndexManager.class.php
+++ b/wcfsetup/install/files/lib/system/search/AbstractSearchIndexManager.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\search;
 use wcf\data\object\type\ObjectType;
 use wcf\data\object\type\ObjectTypeList;
diff --git a/wcfsetup/install/files/lib/system/search/AbstractSearchableObjectType.class.php b/wcfsetup/install/files/lib/system/search/AbstractSearchableObjectType.class.php
index 8f19d4f591..3394f5e1c5 100644
--- a/wcfsetup/install/files/lib/system/search/AbstractSearchableObjectType.class.php
+++ b/wcfsetup/install/files/lib/system/search/AbstractSearchableObjectType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\search;
 use wcf\data\object\type\AbstractObjectTypeProcessor;
 use wcf\form\IForm;
diff --git a/wcfsetup/install/files/lib/system/search/ArticleSearch.class.php b/wcfsetup/install/files/lib/system/search/ArticleSearch.class.php
index 73ebd4d182..73b0414fb0 100644
--- a/wcfsetup/install/files/lib/system/search/ArticleSearch.class.php
+++ b/wcfsetup/install/files/lib/system/search/ArticleSearch.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\search;
 use wcf\data\article\category\ArticleCategory;
 use wcf\data\article\content\SearchResultArticleContent;
diff --git a/wcfsetup/install/files/lib/system/search/ISearchEngine.class.php b/wcfsetup/install/files/lib/system/search/ISearchEngine.class.php
index 1af50b2fed..d1d2fa578e 100644
--- a/wcfsetup/install/files/lib/system/search/ISearchEngine.class.php
+++ b/wcfsetup/install/files/lib/system/search/ISearchEngine.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\search;
 use wcf\system\database\util\PreparedStatementConditionBuilder;
 
diff --git a/wcfsetup/install/files/lib/system/search/ISearchIndexManager.class.php b/wcfsetup/install/files/lib/system/search/ISearchIndexManager.class.php
index e883d79fc1..40c37f15c1 100644
--- a/wcfsetup/install/files/lib/system/search/ISearchIndexManager.class.php
+++ b/wcfsetup/install/files/lib/system/search/ISearchIndexManager.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\search;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/search/ISearchableObjectType.class.php b/wcfsetup/install/files/lib/system/search/ISearchableObjectType.class.php
index 90e3bca544..a3c6d73226 100644
--- a/wcfsetup/install/files/lib/system/search/ISearchableObjectType.class.php
+++ b/wcfsetup/install/files/lib/system/search/ISearchableObjectType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\search;
 use wcf\data\search\ISearchResultObject;
 use wcf\form\IForm;
diff --git a/wcfsetup/install/files/lib/system/search/PageSearch.class.php b/wcfsetup/install/files/lib/system/search/PageSearch.class.php
index 235385f97a..1ef200c26b 100644
--- a/wcfsetup/install/files/lib/system/search/PageSearch.class.php
+++ b/wcfsetup/install/files/lib/system/search/PageSearch.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\search;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\data\page\content\SearchResultPageContent;
diff --git a/wcfsetup/install/files/lib/system/search/SearchEngine.class.php b/wcfsetup/install/files/lib/system/search/SearchEngine.class.php
index 2a47206ff7..f9054e7956 100644
--- a/wcfsetup/install/files/lib/system/search/SearchEngine.class.php
+++ b/wcfsetup/install/files/lib/system/search/SearchEngine.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\search;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\system\database\util\PreparedStatementConditionBuilder;
diff --git a/wcfsetup/install/files/lib/system/search/SearchIndexManager.class.php b/wcfsetup/install/files/lib/system/search/SearchIndexManager.class.php
index 07b465c42d..d07a5cd26f 100644
--- a/wcfsetup/install/files/lib/system/search/SearchIndexManager.class.php
+++ b/wcfsetup/install/files/lib/system/search/SearchIndexManager.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\search;
 use wcf\data\object\type\ObjectType;
 use wcf\data\object\type\ObjectTypeCache;
diff --git a/wcfsetup/install/files/lib/system/search/SearchKeywordManager.class.php b/wcfsetup/install/files/lib/system/search/SearchKeywordManager.class.php
index 5ecb46968e..ca27062acd 100644
--- a/wcfsetup/install/files/lib/system/search/SearchKeywordManager.class.php
+++ b/wcfsetup/install/files/lib/system/search/SearchKeywordManager.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\search;
 use wcf\data\search\keyword\SearchKeyword;
 use wcf\data\search\keyword\SearchKeywordAction;
diff --git a/wcfsetup/install/files/lib/system/search/SearchResultTextParser.class.php b/wcfsetup/install/files/lib/system/search/SearchResultTextParser.class.php
index 4e1f7e0966..ef74c8d115 100644
--- a/wcfsetup/install/files/lib/system/search/SearchResultTextParser.class.php
+++ b/wcfsetup/install/files/lib/system/search/SearchResultTextParser.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\search;
 use wcf\system\bbcode\KeywordHighlighter;
 use wcf\system\Regex;
diff --git a/wcfsetup/install/files/lib/system/search/acp/ACPSearchHandler.class.php b/wcfsetup/install/files/lib/system/search/acp/ACPSearchHandler.class.php
index c2511ec2ca..61b4097cc5 100644
--- a/wcfsetup/install/files/lib/system/search/acp/ACPSearchHandler.class.php
+++ b/wcfsetup/install/files/lib/system/search/acp/ACPSearchHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\search\acp;
 use wcf\data\acp\search\provider\ACPSearchProvider;
 use wcf\system\application\ApplicationHandler;
diff --git a/wcfsetup/install/files/lib/system/search/acp/ACPSearchResult.class.php b/wcfsetup/install/files/lib/system/search/acp/ACPSearchResult.class.php
index baf733a9e8..5372ea498b 100644
--- a/wcfsetup/install/files/lib/system/search/acp/ACPSearchResult.class.php
+++ b/wcfsetup/install/files/lib/system/search/acp/ACPSearchResult.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\search\acp;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/search/acp/ACPSearchResultList.class.php b/wcfsetup/install/files/lib/system/search/acp/ACPSearchResultList.class.php
index d58da9fffb..cb6f6b401b 100644
--- a/wcfsetup/install/files/lib/system/search/acp/ACPSearchResultList.class.php
+++ b/wcfsetup/install/files/lib/system/search/acp/ACPSearchResultList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\search\acp;
 use wcf\system\WCF;
 
diff --git a/wcfsetup/install/files/lib/system/search/acp/AbstractACPSearchResultProvider.class.php b/wcfsetup/install/files/lib/system/search/acp/AbstractACPSearchResultProvider.class.php
index 7211966a70..74de367597 100644
--- a/wcfsetup/install/files/lib/system/search/acp/AbstractACPSearchResultProvider.class.php
+++ b/wcfsetup/install/files/lib/system/search/acp/AbstractACPSearchResultProvider.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\search\acp;
 use wcf\data\DatabaseObject;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/system/search/acp/AbstractCategorizedACPSearchResultProvider.class.php b/wcfsetup/install/files/lib/system/search/acp/AbstractCategorizedACPSearchResultProvider.class.php
index 1cd5e0c10f..1f89797bf4 100644
--- a/wcfsetup/install/files/lib/system/search/acp/AbstractCategorizedACPSearchResultProvider.class.php
+++ b/wcfsetup/install/files/lib/system/search/acp/AbstractCategorizedACPSearchResultProvider.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\search\acp;
 use wcf\data\DatabaseObject;
 use wcf\data\DatabaseObjectList;
diff --git a/wcfsetup/install/files/lib/system/search/acp/ArticleACPSearchResultProvider.class.php b/wcfsetup/install/files/lib/system/search/acp/ArticleACPSearchResultProvider.class.php
index 676d5cebc2..68d548b7fc 100644
--- a/wcfsetup/install/files/lib/system/search/acp/ArticleACPSearchResultProvider.class.php
+++ b/wcfsetup/install/files/lib/system/search/acp/ArticleACPSearchResultProvider.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\search\acp;
 use wcf\data\article\content\ArticleContentList;
 use wcf\system\request\LinkHandler;
diff --git a/wcfsetup/install/files/lib/system/search/acp/BoxACPSearchResultProvider.class.php b/wcfsetup/install/files/lib/system/search/acp/BoxACPSearchResultProvider.class.php
index 35a81c17f3..076e9633af 100644
--- a/wcfsetup/install/files/lib/system/search/acp/BoxACPSearchResultProvider.class.php
+++ b/wcfsetup/install/files/lib/system/search/acp/BoxACPSearchResultProvider.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\search\acp;
 use wcf\data\box\BoxList;
 use wcf\system\request\LinkHandler;
diff --git a/wcfsetup/install/files/lib/system/search/acp/IACPSearchResultProvider.class.php b/wcfsetup/install/files/lib/system/search/acp/IACPSearchResultProvider.class.php
index 78dc255b20..1a9b51c23f 100644
--- a/wcfsetup/install/files/lib/system/search/acp/IACPSearchResultProvider.class.php
+++ b/wcfsetup/install/files/lib/system/search/acp/IACPSearchResultProvider.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\search\acp;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/search/acp/MenuItemACPSearchResultProvider.class.php b/wcfsetup/install/files/lib/system/search/acp/MenuItemACPSearchResultProvider.class.php
index 1be0a00006..bbf7ddf29d 100644
--- a/wcfsetup/install/files/lib/system/search/acp/MenuItemACPSearchResultProvider.class.php
+++ b/wcfsetup/install/files/lib/system/search/acp/MenuItemACPSearchResultProvider.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\search\acp;
 use wcf\data\acp\menu\item\ACPMenuItem;
 use wcf\system\database\util\PreparedStatementConditionBuilder;
diff --git a/wcfsetup/install/files/lib/system/search/acp/OptionACPSearchResultProvider.class.php b/wcfsetup/install/files/lib/system/search/acp/OptionACPSearchResultProvider.class.php
index c24cf2c209..3b6106371d 100644
--- a/wcfsetup/install/files/lib/system/search/acp/OptionACPSearchResultProvider.class.php
+++ b/wcfsetup/install/files/lib/system/search/acp/OptionACPSearchResultProvider.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\search\acp;
 use wcf\data\option\category\OptionCategoryList;
 use wcf\data\option\Option;
diff --git a/wcfsetup/install/files/lib/system/search/acp/PackageACPSearchResultProvider.class.php b/wcfsetup/install/files/lib/system/search/acp/PackageACPSearchResultProvider.class.php
index 65aa976e06..1e768f7cb9 100644
--- a/wcfsetup/install/files/lib/system/search/acp/PackageACPSearchResultProvider.class.php
+++ b/wcfsetup/install/files/lib/system/search/acp/PackageACPSearchResultProvider.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\search\acp;
 use wcf\data\package\Package;
 use wcf\system\database\util\PreparedStatementConditionBuilder;
diff --git a/wcfsetup/install/files/lib/system/search/acp/PageACPSearchResultProvider.class.php b/wcfsetup/install/files/lib/system/search/acp/PageACPSearchResultProvider.class.php
index fdd80ffb1d..865f1f73b5 100644
--- a/wcfsetup/install/files/lib/system/search/acp/PageACPSearchResultProvider.class.php
+++ b/wcfsetup/install/files/lib/system/search/acp/PageACPSearchResultProvider.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\search\acp;
 use wcf\data\page\PageList;
 use wcf\system\request\LinkHandler;
diff --git a/wcfsetup/install/files/lib/system/search/acp/UserACPSearchResultProvider.class.php b/wcfsetup/install/files/lib/system/search/acp/UserACPSearchResultProvider.class.php
index d55dff34f9..04dccc08f2 100644
--- a/wcfsetup/install/files/lib/system/search/acp/UserACPSearchResultProvider.class.php
+++ b/wcfsetup/install/files/lib/system/search/acp/UserACPSearchResultProvider.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\search\acp;
 use wcf\data\user\group\UserGroup;
 use wcf\data\user\User;
diff --git a/wcfsetup/install/files/lib/system/search/acp/UserGroupOptionACPSearchResultProvider.class.php b/wcfsetup/install/files/lib/system/search/acp/UserGroupOptionACPSearchResultProvider.class.php
index e0e485e891..51b1ae6582 100644
--- a/wcfsetup/install/files/lib/system/search/acp/UserGroupOptionACPSearchResultProvider.class.php
+++ b/wcfsetup/install/files/lib/system/search/acp/UserGroupOptionACPSearchResultProvider.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\search\acp;
 use wcf\data\user\group\option\category\UserGroupOptionCategoryList;
 use wcf\data\user\group\option\UserGroupOption;
diff --git a/wcfsetup/install/files/lib/system/search/mysql/MysqlSearchEngine.class.php b/wcfsetup/install/files/lib/system/search/mysql/MysqlSearchEngine.class.php
index ed3c195645..6ee6bc92fa 100644
--- a/wcfsetup/install/files/lib/system/search/mysql/MysqlSearchEngine.class.php
+++ b/wcfsetup/install/files/lib/system/search/mysql/MysqlSearchEngine.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\search\mysql;
 use wcf\system\database\util\PreparedStatementConditionBuilder;
 use wcf\system\database\DatabaseException;
diff --git a/wcfsetup/install/files/lib/system/search/mysql/MysqlSearchIndexManager.class.php b/wcfsetup/install/files/lib/system/search/mysql/MysqlSearchIndexManager.class.php
index e276f8c0da..a055cfd95e 100644
--- a/wcfsetup/install/files/lib/system/search/mysql/MysqlSearchIndexManager.class.php
+++ b/wcfsetup/install/files/lib/system/search/mysql/MysqlSearchIndexManager.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\search\mysql;
 use wcf\data\object\type\ObjectType;
 use wcf\system\search\AbstractSearchIndexManager;
diff --git a/wcfsetup/install/files/lib/system/session/ACPSessionFactory.class.php b/wcfsetup/install/files/lib/system/session/ACPSessionFactory.class.php
index 0b61cd1635..65788f0cb5 100644
--- a/wcfsetup/install/files/lib/system/session/ACPSessionFactory.class.php
+++ b/wcfsetup/install/files/lib/system/session/ACPSessionFactory.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\session;
 use wcf\data\acp\session\ACPSessionEditor;
 use wcf\system\event\EventHandler;
diff --git a/wcfsetup/install/files/lib/system/session/AbstractSessionHandler.class.php b/wcfsetup/install/files/lib/system/session/AbstractSessionHandler.class.php
index 58bb22773c..15e0beebf9 100644
--- a/wcfsetup/install/files/lib/system/session/AbstractSessionHandler.class.php
+++ b/wcfsetup/install/files/lib/system/session/AbstractSessionHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\session;
 use wcf\system\SingletonFactory;
 
diff --git a/wcfsetup/install/files/lib/system/session/SessionFactory.class.php b/wcfsetup/install/files/lib/system/session/SessionFactory.class.php
index 5e763242b3..e45f933a11 100644
--- a/wcfsetup/install/files/lib/system/session/SessionFactory.class.php
+++ b/wcfsetup/install/files/lib/system/session/SessionFactory.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\session;
 use wcf\data\session\SessionEditor;
 
diff --git a/wcfsetup/install/files/lib/system/session/SessionHandler.class.php b/wcfsetup/install/files/lib/system/session/SessionHandler.class.php
index b91d123d73..c1589ed8a2 100644
--- a/wcfsetup/install/files/lib/system/session/SessionHandler.class.php
+++ b/wcfsetup/install/files/lib/system/session/SessionHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\session;
 use wcf\data\acp\session\virtual\ACPSessionVirtual;
 use wcf\data\acp\session\virtual\ACPSessionVirtualAction;
diff --git a/wcfsetup/install/files/lib/system/setup/IFileHandler.class.php b/wcfsetup/install/files/lib/system/setup/IFileHandler.class.php
index 5d29422647..9ad216a656 100644
--- a/wcfsetup/install/files/lib/system/setup/IFileHandler.class.php
+++ b/wcfsetup/install/files/lib/system/setup/IFileHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\setup;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/setup/Installer.class.php b/wcfsetup/install/files/lib/system/setup/Installer.class.php
index 4a222cc4fd..6b06147615 100644
--- a/wcfsetup/install/files/lib/system/setup/Installer.class.php
+++ b/wcfsetup/install/files/lib/system/setup/Installer.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\setup;
 use wcf\system\exception\SystemException;
 use wcf\system\io\Tar;
diff --git a/wcfsetup/install/files/lib/system/setup/SetupFileHandler.class.php b/wcfsetup/install/files/lib/system/setup/SetupFileHandler.class.php
index 57916bc0b4..7f059458f5 100644
--- a/wcfsetup/install/files/lib/system/setup/SetupFileHandler.class.php
+++ b/wcfsetup/install/files/lib/system/setup/SetupFileHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\setup;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/setup/Uninstaller.class.php b/wcfsetup/install/files/lib/system/setup/Uninstaller.class.php
index df5b3d12ea..3ca62276b4 100644
--- a/wcfsetup/install/files/lib/system/setup/Uninstaller.class.php
+++ b/wcfsetup/install/files/lib/system/setup/Uninstaller.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\setup;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/sitemap/object/AbstractSitemapObjectObjectType.class.php b/wcfsetup/install/files/lib/system/sitemap/object/AbstractSitemapObjectObjectType.class.php
index 6bc4f6d8fe..5b148b161c 100755
--- a/wcfsetup/install/files/lib/system/sitemap/object/AbstractSitemapObjectObjectType.class.php
+++ b/wcfsetup/install/files/lib/system/sitemap/object/AbstractSitemapObjectObjectType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\sitemap\object;
 use wcf\data\DatabaseObject;
 
diff --git a/wcfsetup/install/files/lib/system/sitemap/object/ArticleCategorySitemapObject.class.php b/wcfsetup/install/files/lib/system/sitemap/object/ArticleCategorySitemapObject.class.php
index 2b67878478..6515d1c16b 100644
--- a/wcfsetup/install/files/lib/system/sitemap/object/ArticleCategorySitemapObject.class.php
+++ b/wcfsetup/install/files/lib/system/sitemap/object/ArticleCategorySitemapObject.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\sitemap\object;
 use wcf\data\article\category\ArticleCategory;
 use wcf\data\category\CategoryList;
diff --git a/wcfsetup/install/files/lib/system/sitemap/object/ArticleSitemapObject.class.php b/wcfsetup/install/files/lib/system/sitemap/object/ArticleSitemapObject.class.php
index 8d50a6ff69..6f026227a1 100644
--- a/wcfsetup/install/files/lib/system/sitemap/object/ArticleSitemapObject.class.php
+++ b/wcfsetup/install/files/lib/system/sitemap/object/ArticleSitemapObject.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\sitemap\object;
 use wcf\data\article\content\ArticleContent;
 use wcf\data\DatabaseObject;
diff --git a/wcfsetup/install/files/lib/system/sitemap/object/ISitemapObjectObjectType.class.php b/wcfsetup/install/files/lib/system/sitemap/object/ISitemapObjectObjectType.class.php
index b437c29309..61513ecce2 100755
--- a/wcfsetup/install/files/lib/system/sitemap/object/ISitemapObjectObjectType.class.php
+++ b/wcfsetup/install/files/lib/system/sitemap/object/ISitemapObjectObjectType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\sitemap\object;
 use wcf\data\DatabaseObject;
 use wcf\data\DatabaseObjectList;
diff --git a/wcfsetup/install/files/lib/system/sitemap/object/MultilingualPageSitemapObject.class.php b/wcfsetup/install/files/lib/system/sitemap/object/MultilingualPageSitemapObject.class.php
index c1d3fd8fac..0a016bb2c2 100644
--- a/wcfsetup/install/files/lib/system/sitemap/object/MultilingualPageSitemapObject.class.php
+++ b/wcfsetup/install/files/lib/system/sitemap/object/MultilingualPageSitemapObject.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\sitemap\object;
 use wcf\data\page\content\PageContent;
 use wcf\data\page\content\PageContentList;
diff --git a/wcfsetup/install/files/lib/system/sitemap/object/SimplePageSitemapObject.class.php b/wcfsetup/install/files/lib/system/sitemap/object/SimplePageSitemapObject.class.php
index d365ba48c5..820ea32f0d 100644
--- a/wcfsetup/install/files/lib/system/sitemap/object/SimplePageSitemapObject.class.php
+++ b/wcfsetup/install/files/lib/system/sitemap/object/SimplePageSitemapObject.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\sitemap\object;
 use wcf\data\page\Page;
 use wcf\data\page\PageList;
diff --git a/wcfsetup/install/files/lib/system/sitemap/object/UserSitemapObject.class.php b/wcfsetup/install/files/lib/system/sitemap/object/UserSitemapObject.class.php
index 3f86a6c85f..da87964f57 100755
--- a/wcfsetup/install/files/lib/system/sitemap/object/UserSitemapObject.class.php
+++ b/wcfsetup/install/files/lib/system/sitemap/object/UserSitemapObject.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\sitemap\object;
 use wcf\data\user\User;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/system/stat/AbstractCommentStatDailyHandler.class.php b/wcfsetup/install/files/lib/system/stat/AbstractCommentStatDailyHandler.class.php
index fc28ee46ac..9df4181176 100644
--- a/wcfsetup/install/files/lib/system/stat/AbstractCommentStatDailyHandler.class.php
+++ b/wcfsetup/install/files/lib/system/stat/AbstractCommentStatDailyHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\stat;
 use wcf\system\comment\CommentHandler;
 use wcf\system\database\util\PreparedStatementConditionBuilder;
diff --git a/wcfsetup/install/files/lib/system/stat/AbstractDiskUsageStatDailyHandler.class.php b/wcfsetup/install/files/lib/system/stat/AbstractDiskUsageStatDailyHandler.class.php
index 0672b5c20b..65017efdbc 100644
--- a/wcfsetup/install/files/lib/system/stat/AbstractDiskUsageStatDailyHandler.class.php
+++ b/wcfsetup/install/files/lib/system/stat/AbstractDiskUsageStatDailyHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\stat;
 use wcf\system\database\util\PreparedStatementConditionBuilder;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/system/stat/AbstractStatDailyHandler.class.php b/wcfsetup/install/files/lib/system/stat/AbstractStatDailyHandler.class.php
index 53f84a2726..ad98bbe393 100644
--- a/wcfsetup/install/files/lib/system/stat/AbstractStatDailyHandler.class.php
+++ b/wcfsetup/install/files/lib/system/stat/AbstractStatDailyHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\stat;
 use wcf\system\database\util\PreparedStatementConditionBuilder;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/system/stat/AttachmentDiskUsageStatDailyHandler.class.php b/wcfsetup/install/files/lib/system/stat/AttachmentDiskUsageStatDailyHandler.class.php
index 141c5efd77..24f5e5523f 100644
--- a/wcfsetup/install/files/lib/system/stat/AttachmentDiskUsageStatDailyHandler.class.php
+++ b/wcfsetup/install/files/lib/system/stat/AttachmentDiskUsageStatDailyHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\stat;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/stat/AttachmentStatDailyHandler.class.php b/wcfsetup/install/files/lib/system/stat/AttachmentStatDailyHandler.class.php
index fde982d5ae..3d3cdc05e7 100644
--- a/wcfsetup/install/files/lib/system/stat/AttachmentStatDailyHandler.class.php
+++ b/wcfsetup/install/files/lib/system/stat/AttachmentStatDailyHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\stat;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/stat/DislikeStatDailyHandler.class.php b/wcfsetup/install/files/lib/system/stat/DislikeStatDailyHandler.class.php
index b31fba4c12..7057065c58 100644
--- a/wcfsetup/install/files/lib/system/stat/DislikeStatDailyHandler.class.php
+++ b/wcfsetup/install/files/lib/system/stat/DislikeStatDailyHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\stat;
 use wcf\data\like\Like;
 
diff --git a/wcfsetup/install/files/lib/system/stat/IStatDailyHandler.class.php b/wcfsetup/install/files/lib/system/stat/IStatDailyHandler.class.php
index 5dc2132b05..0a5d828ad5 100644
--- a/wcfsetup/install/files/lib/system/stat/IStatDailyHandler.class.php
+++ b/wcfsetup/install/files/lib/system/stat/IStatDailyHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\stat;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/stat/LikeStatDailyHandler.class.php b/wcfsetup/install/files/lib/system/stat/LikeStatDailyHandler.class.php
index b92a5222b8..4762859107 100644
--- a/wcfsetup/install/files/lib/system/stat/LikeStatDailyHandler.class.php
+++ b/wcfsetup/install/files/lib/system/stat/LikeStatDailyHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\stat;
 use wcf\data\like\Like;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/system/stat/UserProfileCommentStatDailyHandler.class.php b/wcfsetup/install/files/lib/system/stat/UserProfileCommentStatDailyHandler.class.php
index 5dd243ff7a..c82bd8d86f 100644
--- a/wcfsetup/install/files/lib/system/stat/UserProfileCommentStatDailyHandler.class.php
+++ b/wcfsetup/install/files/lib/system/stat/UserProfileCommentStatDailyHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\stat;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/stat/UserStatDailyHandler.class.php b/wcfsetup/install/files/lib/system/stat/UserStatDailyHandler.class.php
index 5a8c9b3945..2be8bd450f 100644
--- a/wcfsetup/install/files/lib/system/stat/UserStatDailyHandler.class.php
+++ b/wcfsetup/install/files/lib/system/stat/UserStatDailyHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\stat;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/style/StyleCompiler.class.php b/wcfsetup/install/files/lib/system/style/StyleCompiler.class.php
index ce24be184d..7597e4786a 100644
--- a/wcfsetup/install/files/lib/system/style/StyleCompiler.class.php
+++ b/wcfsetup/install/files/lib/system/style/StyleCompiler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\style;
 use Leafo\ScssPhp\Compiler;
 use wcf\data\application\Application;
diff --git a/wcfsetup/install/files/lib/system/style/StyleHandler.class.php b/wcfsetup/install/files/lib/system/style/StyleHandler.class.php
index 1860ede175..ea2e869dd8 100644
--- a/wcfsetup/install/files/lib/system/style/StyleHandler.class.php
+++ b/wcfsetup/install/files/lib/system/style/StyleHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\style;
 use wcf\data\style\ActiveStyle;
 use wcf\data\style\Style;
diff --git a/wcfsetup/install/files/lib/system/tagging/AbstractTaggable.class.php b/wcfsetup/install/files/lib/system/tagging/AbstractTaggable.class.php
index 7506315261..33c294440e 100644
--- a/wcfsetup/install/files/lib/system/tagging/AbstractTaggable.class.php
+++ b/wcfsetup/install/files/lib/system/tagging/AbstractTaggable.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\tagging;
 use wcf\data\object\type\AbstractObjectTypeProcessor;
 
diff --git a/wcfsetup/install/files/lib/system/tagging/ITaggable.class.php b/wcfsetup/install/files/lib/system/tagging/ITaggable.class.php
index 1a3ac3d490..e921084703 100644
--- a/wcfsetup/install/files/lib/system/tagging/ITaggable.class.php
+++ b/wcfsetup/install/files/lib/system/tagging/ITaggable.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\tagging;
 use wcf\data\tag\Tag;
 
diff --git a/wcfsetup/install/files/lib/system/tagging/ITagged.class.php b/wcfsetup/install/files/lib/system/tagging/ITagged.class.php
index fe29674c5c..485b5e1b07 100644
--- a/wcfsetup/install/files/lib/system/tagging/ITagged.class.php
+++ b/wcfsetup/install/files/lib/system/tagging/ITagged.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\tagging;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/tagging/TagCloud.class.php b/wcfsetup/install/files/lib/system/tagging/TagCloud.class.php
index 0670a229ee..21622572ec 100644
--- a/wcfsetup/install/files/lib/system/tagging/TagCloud.class.php
+++ b/wcfsetup/install/files/lib/system/tagging/TagCloud.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\tagging;
 use wcf\data\tag\TagCloudTag;
 use wcf\system\cache\builder\TagCloudCacheBuilder;
diff --git a/wcfsetup/install/files/lib/system/tagging/TagEngine.class.php b/wcfsetup/install/files/lib/system/tagging/TagEngine.class.php
index f101d8125e..4579c59d05 100644
--- a/wcfsetup/install/files/lib/system/tagging/TagEngine.class.php
+++ b/wcfsetup/install/files/lib/system/tagging/TagEngine.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\tagging;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\data\tag\Tag;
diff --git a/wcfsetup/install/files/lib/system/tagging/TaggableArticle.class.php b/wcfsetup/install/files/lib/system/tagging/TaggableArticle.class.php
index 70d614f095..0b8d7a0cf5 100644
--- a/wcfsetup/install/files/lib/system/tagging/TaggableArticle.class.php
+++ b/wcfsetup/install/files/lib/system/tagging/TaggableArticle.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\tagging;
 use wcf\data\article\TaggedArticleList;
 use wcf\data\tag\Tag;
diff --git a/wcfsetup/install/files/lib/system/tagging/TypedTagCloud.class.php b/wcfsetup/install/files/lib/system/tagging/TypedTagCloud.class.php
index cb0577c73c..f381bb8654 100644
--- a/wcfsetup/install/files/lib/system/tagging/TypedTagCloud.class.php
+++ b/wcfsetup/install/files/lib/system/tagging/TypedTagCloud.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\tagging;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\system\cache\builder\TypedTagCloudCacheBuilder;
diff --git a/wcfsetup/install/files/lib/system/template/ACPTemplateEngine.class.php b/wcfsetup/install/files/lib/system/template/ACPTemplateEngine.class.php
index f502df4f94..fa7a7f2522 100644
--- a/wcfsetup/install/files/lib/system/template/ACPTemplateEngine.class.php
+++ b/wcfsetup/install/files/lib/system/template/ACPTemplateEngine.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\template;
 use wcf\system\application\ApplicationHandler;
 
diff --git a/wcfsetup/install/files/lib/system/template/EmailTemplateEngine.class.php b/wcfsetup/install/files/lib/system/template/EmailTemplateEngine.class.php
index 8efa0024bc..10fa31d03c 100644
--- a/wcfsetup/install/files/lib/system/template/EmailTemplateEngine.class.php
+++ b/wcfsetup/install/files/lib/system/template/EmailTemplateEngine.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\template;
 use wcf\system\WCF;
 
diff --git a/wcfsetup/install/files/lib/system/template/SetupTemplateCompiler.class.php b/wcfsetup/install/files/lib/system/template/SetupTemplateCompiler.class.php
index 4c275541ad..85a3d395fd 100644
--- a/wcfsetup/install/files/lib/system/template/SetupTemplateCompiler.class.php
+++ b/wcfsetup/install/files/lib/system/template/SetupTemplateCompiler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\template;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/template/SetupTemplateEngine.class.php b/wcfsetup/install/files/lib/system/template/SetupTemplateEngine.class.php
index c7b5639f60..1d25612fd3 100644
--- a/wcfsetup/install/files/lib/system/template/SetupTemplateEngine.class.php
+++ b/wcfsetup/install/files/lib/system/template/SetupTemplateEngine.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\template;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/template/TemplateCompiler.class.php b/wcfsetup/install/files/lib/system/template/TemplateCompiler.class.php
index 16f1ce56da..b679733447 100644
--- a/wcfsetup/install/files/lib/system/template/TemplateCompiler.class.php
+++ b/wcfsetup/install/files/lib/system/template/TemplateCompiler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\template;
 use wcf\system\io\AtomicWriter;
 
diff --git a/wcfsetup/install/files/lib/system/template/TemplateEngine.class.php b/wcfsetup/install/files/lib/system/template/TemplateEngine.class.php
index 069a648fb9..dc5e0b0410 100755
--- a/wcfsetup/install/files/lib/system/template/TemplateEngine.class.php
+++ b/wcfsetup/install/files/lib/system/template/TemplateEngine.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\template;
 use wcf\data\template\Template;
 use wcf\system\cache\builder\TemplateGroupCacheBuilder;
diff --git a/wcfsetup/install/files/lib/system/template/TemplateScriptingCompiler.class.php b/wcfsetup/install/files/lib/system/template/TemplateScriptingCompiler.class.php
index 8c2b7ecf46..3114d5b126 100644
--- a/wcfsetup/install/files/lib/system/template/TemplateScriptingCompiler.class.php
+++ b/wcfsetup/install/files/lib/system/template/TemplateScriptingCompiler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\template;
 use wcf\system\exception\SystemException;
 use wcf\system\template\plugin\ICompilerTemplatePlugin;
diff --git a/wcfsetup/install/files/lib/system/template/plugin/AppendCompilerTemplatePlugin.class.php b/wcfsetup/install/files/lib/system/template/plugin/AppendCompilerTemplatePlugin.class.php
index 7e8f2cae7c..5abd720a30 100644
--- a/wcfsetup/install/files/lib/system/template/plugin/AppendCompilerTemplatePlugin.class.php
+++ b/wcfsetup/install/files/lib/system/template/plugin/AppendCompilerTemplatePlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\template\plugin;
 use wcf\system\exception\SystemException;
 use wcf\system\template\TemplateScriptingCompiler;
diff --git a/wcfsetup/install/files/lib/system/template/plugin/AssignCompilerTemplatePlugin.class.php b/wcfsetup/install/files/lib/system/template/plugin/AssignCompilerTemplatePlugin.class.php
index 5e0bc29ed6..efc6d5ed6e 100644
--- a/wcfsetup/install/files/lib/system/template/plugin/AssignCompilerTemplatePlugin.class.php
+++ b/wcfsetup/install/files/lib/system/template/plugin/AssignCompilerTemplatePlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\template\plugin;
 use wcf\system\exception\SystemException;
 use wcf\system\template\TemplateScriptingCompiler;
diff --git a/wcfsetup/install/files/lib/system/template/plugin/ConcatModifierTemplatePlugin.class.php b/wcfsetup/install/files/lib/system/template/plugin/ConcatModifierTemplatePlugin.class.php
index e62b1d85c5..996365db61 100644
--- a/wcfsetup/install/files/lib/system/template/plugin/ConcatModifierTemplatePlugin.class.php
+++ b/wcfsetup/install/files/lib/system/template/plugin/ConcatModifierTemplatePlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\template\plugin;
 use wcf\system\exception\SystemException;
 use wcf\system\template\TemplateEngine;
diff --git a/wcfsetup/install/files/lib/system/template/plugin/CounterFunctionTemplatePlugin.class.php b/wcfsetup/install/files/lib/system/template/plugin/CounterFunctionTemplatePlugin.class.php
index 4c15d436e5..26a7b4d252 100644
--- a/wcfsetup/install/files/lib/system/template/plugin/CounterFunctionTemplatePlugin.class.php
+++ b/wcfsetup/install/files/lib/system/template/plugin/CounterFunctionTemplatePlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\template\plugin;
 use wcf\system\template\TemplateEngine;
 
diff --git a/wcfsetup/install/files/lib/system/template/plugin/CurrencyModifierTemplatePlugin.class.php b/wcfsetup/install/files/lib/system/template/plugin/CurrencyModifierTemplatePlugin.class.php
index 1e0f0a84c7..c31e138dc4 100644
--- a/wcfsetup/install/files/lib/system/template/plugin/CurrencyModifierTemplatePlugin.class.php
+++ b/wcfsetup/install/files/lib/system/template/plugin/CurrencyModifierTemplatePlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\template\plugin;
 use wcf\system\template\TemplateEngine;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/system/template/plugin/CycleFunctionTemplatePlugin.class.php b/wcfsetup/install/files/lib/system/template/plugin/CycleFunctionTemplatePlugin.class.php
index a96d9feabf..c4b16ae9ea 100644
--- a/wcfsetup/install/files/lib/system/template/plugin/CycleFunctionTemplatePlugin.class.php
+++ b/wcfsetup/install/files/lib/system/template/plugin/CycleFunctionTemplatePlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\template\plugin;
 use wcf\system\exception\SystemException;
 use wcf\system\template\TemplateEngine;
diff --git a/wcfsetup/install/files/lib/system/template/plugin/DateDiffModifierTemplatePlugin.class.php b/wcfsetup/install/files/lib/system/template/plugin/DateDiffModifierTemplatePlugin.class.php
index b660b9c61f..9657d86f0b 100644
--- a/wcfsetup/install/files/lib/system/template/plugin/DateDiffModifierTemplatePlugin.class.php
+++ b/wcfsetup/install/files/lib/system/template/plugin/DateDiffModifierTemplatePlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\template\plugin;
 use wcf\system\template\TemplateEngine;
 use wcf\util\DateUtil;
diff --git a/wcfsetup/install/files/lib/system/template/plugin/DateIntervalFunctionTemplatePlugin.class.php b/wcfsetup/install/files/lib/system/template/plugin/DateIntervalFunctionTemplatePlugin.class.php
index 5711b5f60e..c1d9f5371e 100644
--- a/wcfsetup/install/files/lib/system/template/plugin/DateIntervalFunctionTemplatePlugin.class.php
+++ b/wcfsetup/install/files/lib/system/template/plugin/DateIntervalFunctionTemplatePlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\template\plugin;
 use wcf\system\template\TemplateEngine;
 use wcf\util\DateUtil;
diff --git a/wcfsetup/install/files/lib/system/template/plugin/DateModifierTemplatePlugin.class.php b/wcfsetup/install/files/lib/system/template/plugin/DateModifierTemplatePlugin.class.php
index d6415e02f8..959135f900 100644
--- a/wcfsetup/install/files/lib/system/template/plugin/DateModifierTemplatePlugin.class.php
+++ b/wcfsetup/install/files/lib/system/template/plugin/DateModifierTemplatePlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\template\plugin;
 use wcf\system\template\TemplateEngine;
 use wcf\util\DateUtil;
diff --git a/wcfsetup/install/files/lib/system/template/plugin/EmbeddedObjectBlockTemplatePlugin.class.php b/wcfsetup/install/files/lib/system/template/plugin/EmbeddedObjectBlockTemplatePlugin.class.php
index 60322dc6cf..ad4d9c1dfa 100644
--- a/wcfsetup/install/files/lib/system/template/plugin/EmbeddedObjectBlockTemplatePlugin.class.php
+++ b/wcfsetup/install/files/lib/system/template/plugin/EmbeddedObjectBlockTemplatePlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\template\plugin;
 use wcf\system\html\simple\HtmlSimpleParser;
 use wcf\system\template\TemplateEngine;
diff --git a/wcfsetup/install/files/lib/system/template/plugin/EncodeJSModifierTemplatePlugin.class.php b/wcfsetup/install/files/lib/system/template/plugin/EncodeJSModifierTemplatePlugin.class.php
index 3dbf75c478..d9748e0bdc 100644
--- a/wcfsetup/install/files/lib/system/template/plugin/EncodeJSModifierTemplatePlugin.class.php
+++ b/wcfsetup/install/files/lib/system/template/plugin/EncodeJSModifierTemplatePlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\template\plugin;
 use wcf\system\template\TemplateEngine;
 use wcf\util\StringUtil;
diff --git a/wcfsetup/install/files/lib/system/template/plugin/EncodeJSONModifierTemplatePlugin.class.php b/wcfsetup/install/files/lib/system/template/plugin/EncodeJSONModifierTemplatePlugin.class.php
index 03fdf9efd7..603256d8db 100644
--- a/wcfsetup/install/files/lib/system/template/plugin/EncodeJSONModifierTemplatePlugin.class.php
+++ b/wcfsetup/install/files/lib/system/template/plugin/EncodeJSONModifierTemplatePlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\template\plugin;
 use wcf\system\template\TemplateEngine;
 use wcf\util\StringUtil;
diff --git a/wcfsetup/install/files/lib/system/template/plugin/EscapeCDATAModifierTemplatePlugin.class.php b/wcfsetup/install/files/lib/system/template/plugin/EscapeCDATAModifierTemplatePlugin.class.php
index 2915858442..b27e94d285 100644
--- a/wcfsetup/install/files/lib/system/template/plugin/EscapeCDATAModifierTemplatePlugin.class.php
+++ b/wcfsetup/install/files/lib/system/template/plugin/EscapeCDATAModifierTemplatePlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\template\plugin;
 use wcf\system\template\TemplateEngine;
 use wcf\util\StringUtil;
diff --git a/wcfsetup/install/files/lib/system/template/plugin/EventPrefilterTemplatePlugin.class.php b/wcfsetup/install/files/lib/system/template/plugin/EventPrefilterTemplatePlugin.class.php
index b59e0c4557..3ded26696d 100644
--- a/wcfsetup/install/files/lib/system/template/plugin/EventPrefilterTemplatePlugin.class.php
+++ b/wcfsetup/install/files/lib/system/template/plugin/EventPrefilterTemplatePlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\template\plugin;
 use wcf\system\template\TemplateScriptingCompiler;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/system/template/plugin/FetchCompilerTemplatePlugin.class.php b/wcfsetup/install/files/lib/system/template/plugin/FetchCompilerTemplatePlugin.class.php
index 354fb3f621..bb901ef3af 100644
--- a/wcfsetup/install/files/lib/system/template/plugin/FetchCompilerTemplatePlugin.class.php
+++ b/wcfsetup/install/files/lib/system/template/plugin/FetchCompilerTemplatePlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\template\plugin;
 use wcf\system\exception\SystemException;
 use wcf\system\template\TemplateScriptingCompiler;
diff --git a/wcfsetup/install/files/lib/system/template/plugin/FilesizeBinaryModifierTemplatePlugin.class.php b/wcfsetup/install/files/lib/system/template/plugin/FilesizeBinaryModifierTemplatePlugin.class.php
index caf07d6f3d..8b5e60f851 100644
--- a/wcfsetup/install/files/lib/system/template/plugin/FilesizeBinaryModifierTemplatePlugin.class.php
+++ b/wcfsetup/install/files/lib/system/template/plugin/FilesizeBinaryModifierTemplatePlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\template\plugin;
 use wcf\system\template\TemplateEngine;
 use wcf\util\FileUtil;
diff --git a/wcfsetup/install/files/lib/system/template/plugin/FilesizeModifierTemplatePlugin.class.php b/wcfsetup/install/files/lib/system/template/plugin/FilesizeModifierTemplatePlugin.class.php
index 1ad8271098..e8830d6fcb 100644
--- a/wcfsetup/install/files/lib/system/template/plugin/FilesizeModifierTemplatePlugin.class.php
+++ b/wcfsetup/install/files/lib/system/template/plugin/FilesizeModifierTemplatePlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\template\plugin;
 use wcf\system\template\TemplateEngine;
 use wcf\util\FileUtil;
diff --git a/wcfsetup/install/files/lib/system/template/plugin/HascontentPrefilterTemplatePlugin.class.php b/wcfsetup/install/files/lib/system/template/plugin/HascontentPrefilterTemplatePlugin.class.php
index be1961a5d5..ae76c325cd 100644
--- a/wcfsetup/install/files/lib/system/template/plugin/HascontentPrefilterTemplatePlugin.class.php
+++ b/wcfsetup/install/files/lib/system/template/plugin/HascontentPrefilterTemplatePlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\template\plugin;
 use wcf\system\template\TemplateScriptingCompiler;
 use wcf\util\StringUtil;
diff --git a/wcfsetup/install/files/lib/system/template/plugin/HtmlCheckboxesFunctionTemplatePlugin.class.php b/wcfsetup/install/files/lib/system/template/plugin/HtmlCheckboxesFunctionTemplatePlugin.class.php
index f8f0c1cb4a..e60b9c091b 100644
--- a/wcfsetup/install/files/lib/system/template/plugin/HtmlCheckboxesFunctionTemplatePlugin.class.php
+++ b/wcfsetup/install/files/lib/system/template/plugin/HtmlCheckboxesFunctionTemplatePlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\template\plugin;
 use wcf\system\exception\SystemException;
 use wcf\system\template\TemplateEngine;
diff --git a/wcfsetup/install/files/lib/system/template/plugin/HtmlOptionsFunctionTemplatePlugin.class.php b/wcfsetup/install/files/lib/system/template/plugin/HtmlOptionsFunctionTemplatePlugin.class.php
index cd4ee8c85e..9801575b0f 100644
--- a/wcfsetup/install/files/lib/system/template/plugin/HtmlOptionsFunctionTemplatePlugin.class.php
+++ b/wcfsetup/install/files/lib/system/template/plugin/HtmlOptionsFunctionTemplatePlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\template\plugin;
 use wcf\data\DatabaseObjectList;
 use wcf\system\exception\SystemException;
diff --git a/wcfsetup/install/files/lib/system/template/plugin/IBlockTemplatePlugin.class.php b/wcfsetup/install/files/lib/system/template/plugin/IBlockTemplatePlugin.class.php
index 992d4d9210..372b2cecb6 100644
--- a/wcfsetup/install/files/lib/system/template/plugin/IBlockTemplatePlugin.class.php
+++ b/wcfsetup/install/files/lib/system/template/plugin/IBlockTemplatePlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\template\plugin;
 use wcf\system\template\TemplateEngine;
 
diff --git a/wcfsetup/install/files/lib/system/template/plugin/ICompilerTemplatePlugin.class.php b/wcfsetup/install/files/lib/system/template/plugin/ICompilerTemplatePlugin.class.php
index 1e182d170e..92b145b445 100644
--- a/wcfsetup/install/files/lib/system/template/plugin/ICompilerTemplatePlugin.class.php
+++ b/wcfsetup/install/files/lib/system/template/plugin/ICompilerTemplatePlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\template\plugin;
 use wcf\system\template\TemplateScriptingCompiler;
 
diff --git a/wcfsetup/install/files/lib/system/template/plugin/IFunctionTemplatePlugin.class.php b/wcfsetup/install/files/lib/system/template/plugin/IFunctionTemplatePlugin.class.php
index 3e649f1277..abdb99ff46 100644
--- a/wcfsetup/install/files/lib/system/template/plugin/IFunctionTemplatePlugin.class.php
+++ b/wcfsetup/install/files/lib/system/template/plugin/IFunctionTemplatePlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\template\plugin;
 use wcf\system\template\TemplateEngine;
 
diff --git a/wcfsetup/install/files/lib/system/template/plugin/IModifierTemplatePlugin.class.php b/wcfsetup/install/files/lib/system/template/plugin/IModifierTemplatePlugin.class.php
index ab867005ba..c32a1bc780 100644
--- a/wcfsetup/install/files/lib/system/template/plugin/IModifierTemplatePlugin.class.php
+++ b/wcfsetup/install/files/lib/system/template/plugin/IModifierTemplatePlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\template\plugin;
 use wcf\system\template\TemplateEngine;
 
diff --git a/wcfsetup/install/files/lib/system/template/plugin/IPrefilterTemplatePlugin.class.php b/wcfsetup/install/files/lib/system/template/plugin/IPrefilterTemplatePlugin.class.php
index 7259534625..ec5a02c580 100644
--- a/wcfsetup/install/files/lib/system/template/plugin/IPrefilterTemplatePlugin.class.php
+++ b/wcfsetup/install/files/lib/system/template/plugin/IPrefilterTemplatePlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\template\plugin;
 use wcf\system\template\TemplateScriptingCompiler;
 
diff --git a/wcfsetup/install/files/lib/system/template/plugin/ImplodeCompilerTemplatePlugin.class.php b/wcfsetup/install/files/lib/system/template/plugin/ImplodeCompilerTemplatePlugin.class.php
index 0924155bfb..da1b3555b2 100644
--- a/wcfsetup/install/files/lib/system/template/plugin/ImplodeCompilerTemplatePlugin.class.php
+++ b/wcfsetup/install/files/lib/system/template/plugin/ImplodeCompilerTemplatePlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\template\plugin;
 use wcf\system\exception\SystemException;
 use wcf\system\template\TemplateScriptingCompiler;
diff --git a/wcfsetup/install/files/lib/system/template/plugin/JsFunctionTemplatePlugin.class.php b/wcfsetup/install/files/lib/system/template/plugin/JsFunctionTemplatePlugin.class.php
index 39f3c0ff38..d7223b1e8f 100644
--- a/wcfsetup/install/files/lib/system/template/plugin/JsFunctionTemplatePlugin.class.php
+++ b/wcfsetup/install/files/lib/system/template/plugin/JsFunctionTemplatePlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\template\plugin;
 use wcf\system\exception\SystemException;
 use wcf\system\request\RequestHandler;
diff --git a/wcfsetup/install/files/lib/system/template/plugin/LangCompilerTemplatePlugin.class.php b/wcfsetup/install/files/lib/system/template/plugin/LangCompilerTemplatePlugin.class.php
index ca241f474b..ff410398a9 100644
--- a/wcfsetup/install/files/lib/system/template/plugin/LangCompilerTemplatePlugin.class.php
+++ b/wcfsetup/install/files/lib/system/template/plugin/LangCompilerTemplatePlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\template\plugin;
 use wcf\system\template\TemplateScriptingCompiler;
 
diff --git a/wcfsetup/install/files/lib/system/template/plugin/LangPrefilterTemplatePlugin.class.php b/wcfsetup/install/files/lib/system/template/plugin/LangPrefilterTemplatePlugin.class.php
index 6aaa61bf4b..bd529e4c71 100644
--- a/wcfsetup/install/files/lib/system/template/plugin/LangPrefilterTemplatePlugin.class.php
+++ b/wcfsetup/install/files/lib/system/template/plugin/LangPrefilterTemplatePlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\template\plugin;
 use wcf\system\template\TemplateScriptingCompiler;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/system/template/plugin/LanguageModifierTemplatePlugin.class.php b/wcfsetup/install/files/lib/system/template/plugin/LanguageModifierTemplatePlugin.class.php
index d3eccb81af..5d876379f9 100644
--- a/wcfsetup/install/files/lib/system/template/plugin/LanguageModifierTemplatePlugin.class.php
+++ b/wcfsetup/install/files/lib/system/template/plugin/LanguageModifierTemplatePlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\template\plugin;
 use wcf\system\template\TemplateEngine;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/system/template/plugin/LinkBlockTemplatePlugin.class.php b/wcfsetup/install/files/lib/system/template/plugin/LinkBlockTemplatePlugin.class.php
index 460e714b26..c8da53aaa6 100644
--- a/wcfsetup/install/files/lib/system/template/plugin/LinkBlockTemplatePlugin.class.php
+++ b/wcfsetup/install/files/lib/system/template/plugin/LinkBlockTemplatePlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\template\plugin;
 use wcf\system\request\LinkHandler;
 use wcf\system\template\TemplateEngine;
diff --git a/wcfsetup/install/files/lib/system/template/plugin/NewlineToBreakModifierTemplatePlugin.class.php b/wcfsetup/install/files/lib/system/template/plugin/NewlineToBreakModifierTemplatePlugin.class.php
index a0005acabe..e1a433839b 100644
--- a/wcfsetup/install/files/lib/system/template/plugin/NewlineToBreakModifierTemplatePlugin.class.php
+++ b/wcfsetup/install/files/lib/system/template/plugin/NewlineToBreakModifierTemplatePlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\template\plugin;
 use wcf\system\template\TemplateEngine;
 use wcf\util\StringUtil;
diff --git a/wcfsetup/install/files/lib/system/template/plugin/PageBlockTemplatePlugin.class.php b/wcfsetup/install/files/lib/system/template/plugin/PageBlockTemplatePlugin.class.php
index a01aa50e91..ae0132bdd1 100644
--- a/wcfsetup/install/files/lib/system/template/plugin/PageBlockTemplatePlugin.class.php
+++ b/wcfsetup/install/files/lib/system/template/plugin/PageBlockTemplatePlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\template\plugin;
 use wcf\data\page\Page;
 use wcf\system\exception\SystemException;
diff --git a/wcfsetup/install/files/lib/system/template/plugin/PagesFunctionTemplatePlugin.class.php b/wcfsetup/install/files/lib/system/template/plugin/PagesFunctionTemplatePlugin.class.php
index 00a76e5a5b..33eab40cbe 100644
--- a/wcfsetup/install/files/lib/system/template/plugin/PagesFunctionTemplatePlugin.class.php
+++ b/wcfsetup/install/files/lib/system/template/plugin/PagesFunctionTemplatePlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\template\plugin;
 use wcf\system\exception\SystemException;
 use wcf\system\request\LinkHandler;
diff --git a/wcfsetup/install/files/lib/system/template/plugin/PlainTimeModifierTemplatePlugin.class.php b/wcfsetup/install/files/lib/system/template/plugin/PlainTimeModifierTemplatePlugin.class.php
index 20115f6c04..842f52c29d 100644
--- a/wcfsetup/install/files/lib/system/template/plugin/PlainTimeModifierTemplatePlugin.class.php
+++ b/wcfsetup/install/files/lib/system/template/plugin/PlainTimeModifierTemplatePlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\template\plugin;
 use wcf\system\template\TemplateEngine;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/system/template/plugin/PrependCompilerTemplatePlugin.class.php b/wcfsetup/install/files/lib/system/template/plugin/PrependCompilerTemplatePlugin.class.php
index 6ffa97f906..2169cf62be 100644
--- a/wcfsetup/install/files/lib/system/template/plugin/PrependCompilerTemplatePlugin.class.php
+++ b/wcfsetup/install/files/lib/system/template/plugin/PrependCompilerTemplatePlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\template\plugin;
 use wcf\system\exception\SystemException;
 use wcf\system\template\TemplateScriptingCompiler;
diff --git a/wcfsetup/install/files/lib/system/template/plugin/ShortUnitModifierTemplatePlugin.class.php b/wcfsetup/install/files/lib/system/template/plugin/ShortUnitModifierTemplatePlugin.class.php
index 724c1e4eca..0bee2ac3b9 100644
--- a/wcfsetup/install/files/lib/system/template/plugin/ShortUnitModifierTemplatePlugin.class.php
+++ b/wcfsetup/install/files/lib/system/template/plugin/ShortUnitModifierTemplatePlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\template\plugin;
 use wcf\system\template\TemplateEngine;
 use wcf\util\StringUtil;
diff --git a/wcfsetup/install/files/lib/system/template/plugin/SimpleEmbeddedObjectPrefilterTemplatePlugin.class.php b/wcfsetup/install/files/lib/system/template/plugin/SimpleEmbeddedObjectPrefilterTemplatePlugin.class.php
index 704e0f4355..03055c6b59 100644
--- a/wcfsetup/install/files/lib/system/template/plugin/SimpleEmbeddedObjectPrefilterTemplatePlugin.class.php
+++ b/wcfsetup/install/files/lib/system/template/plugin/SimpleEmbeddedObjectPrefilterTemplatePlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\template\plugin;
 use wcf\system\html\simple\HtmlSimpleParser;
 use wcf\system\template\TemplateScriptingCompiler;
diff --git a/wcfsetup/install/files/lib/system/template/plugin/SmallpagesFunctionTemplatePlugin.class.php b/wcfsetup/install/files/lib/system/template/plugin/SmallpagesFunctionTemplatePlugin.class.php
index 29c0c72f96..aad3156b2f 100644
--- a/wcfsetup/install/files/lib/system/template/plugin/SmallpagesFunctionTemplatePlugin.class.php
+++ b/wcfsetup/install/files/lib/system/template/plugin/SmallpagesFunctionTemplatePlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\template\plugin;
 use wcf\system\template\TemplateEngine;
 
diff --git a/wcfsetup/install/files/lib/system/template/plugin/TableWordwrapModifierTemplatePlugin.class.php b/wcfsetup/install/files/lib/system/template/plugin/TableWordwrapModifierTemplatePlugin.class.php
index 1b6ffe214d..fc170b378e 100644
--- a/wcfsetup/install/files/lib/system/template/plugin/TableWordwrapModifierTemplatePlugin.class.php
+++ b/wcfsetup/install/files/lib/system/template/plugin/TableWordwrapModifierTemplatePlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\template\plugin;
 use wcf\system\template\TemplateEngine;
 
diff --git a/wcfsetup/install/files/lib/system/template/plugin/TimeModifierTemplatePlugin.class.php b/wcfsetup/install/files/lib/system/template/plugin/TimeModifierTemplatePlugin.class.php
index 0a8d01b37a..38fed50dd3 100644
--- a/wcfsetup/install/files/lib/system/template/plugin/TimeModifierTemplatePlugin.class.php
+++ b/wcfsetup/install/files/lib/system/template/plugin/TimeModifierTemplatePlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\template\plugin;
 use wcf\system\template\TemplateEngine;
 use wcf\util\DateUtil;
diff --git a/wcfsetup/install/files/lib/system/template/plugin/TruncateModifierTemplatePlugin.class.php b/wcfsetup/install/files/lib/system/template/plugin/TruncateModifierTemplatePlugin.class.php
index d0ab1eb9e3..4261248b5d 100644
--- a/wcfsetup/install/files/lib/system/template/plugin/TruncateModifierTemplatePlugin.class.php
+++ b/wcfsetup/install/files/lib/system/template/plugin/TruncateModifierTemplatePlugin.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\template\plugin;
 use wcf\system\template\TemplateEngine;
 use wcf\util\StringUtil;
diff --git a/wcfsetup/install/files/lib/system/trophy/condition/TrophyConditionHandler.class.php b/wcfsetup/install/files/lib/system/trophy/condition/TrophyConditionHandler.class.php
index 1ce4fcb4d8..f3237a07f4 100644
--- a/wcfsetup/install/files/lib/system/trophy/condition/TrophyConditionHandler.class.php
+++ b/wcfsetup/install/files/lib/system/trophy/condition/TrophyConditionHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\trophy\condition;
 use wcf\data\object\type\ObjectType;
 use wcf\data\object\type\ObjectTypeCache;
diff --git a/wcfsetup/install/files/lib/system/upload/AvatarUploadFileValidationStrategy.class.php b/wcfsetup/install/files/lib/system/upload/AvatarUploadFileValidationStrategy.class.php
index 9ecd6a1869..5ce9c43712 100644
--- a/wcfsetup/install/files/lib/system/upload/AvatarUploadFileValidationStrategy.class.php
+++ b/wcfsetup/install/files/lib/system/upload/AvatarUploadFileValidationStrategy.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\upload;
 use wcf\data\user\avatar\UserAvatar;
 use wcf\system\exception\SystemException;
diff --git a/wcfsetup/install/files/lib/system/upload/DefaultUploadFileSaveStrategy.class.php b/wcfsetup/install/files/lib/system/upload/DefaultUploadFileSaveStrategy.class.php
index 38973e03a8..f906b0e810 100644
--- a/wcfsetup/install/files/lib/system/upload/DefaultUploadFileSaveStrategy.class.php
+++ b/wcfsetup/install/files/lib/system/upload/DefaultUploadFileSaveStrategy.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\upload;
 use wcf\data\AbstractDatabaseObjectAction;
 use wcf\data\DatabaseObjectEditor;
diff --git a/wcfsetup/install/files/lib/system/upload/DefaultUploadFileValidationStrategy.class.php b/wcfsetup/install/files/lib/system/upload/DefaultUploadFileValidationStrategy.class.php
index 0b0453b288..00925fb6ea 100644
--- a/wcfsetup/install/files/lib/system/upload/DefaultUploadFileValidationStrategy.class.php
+++ b/wcfsetup/install/files/lib/system/upload/DefaultUploadFileValidationStrategy.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\upload;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/upload/IUploadFileSaveStrategy.class.php b/wcfsetup/install/files/lib/system/upload/IUploadFileSaveStrategy.class.php
index b5ee3567ba..b098ba7491 100644
--- a/wcfsetup/install/files/lib/system/upload/IUploadFileSaveStrategy.class.php
+++ b/wcfsetup/install/files/lib/system/upload/IUploadFileSaveStrategy.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\upload;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/upload/IUploadFileValidationStrategy.class.php b/wcfsetup/install/files/lib/system/upload/IUploadFileValidationStrategy.class.php
index 2ad738c537..084348b0f0 100644
--- a/wcfsetup/install/files/lib/system/upload/IUploadFileValidationStrategy.class.php
+++ b/wcfsetup/install/files/lib/system/upload/IUploadFileValidationStrategy.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\upload;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/upload/MediaUploadFileValidationStrategy.class.php b/wcfsetup/install/files/lib/system/upload/MediaUploadFileValidationStrategy.class.php
index c8fc736e1e..e35138aade 100644
--- a/wcfsetup/install/files/lib/system/upload/MediaUploadFileValidationStrategy.class.php
+++ b/wcfsetup/install/files/lib/system/upload/MediaUploadFileValidationStrategy.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\upload;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/upload/TrophyImageUploadFileValidationStrategy.class.php b/wcfsetup/install/files/lib/system/upload/TrophyImageUploadFileValidationStrategy.class.php
index 921b886109..f8d08c2604 100644
--- a/wcfsetup/install/files/lib/system/upload/TrophyImageUploadFileValidationStrategy.class.php
+++ b/wcfsetup/install/files/lib/system/upload/TrophyImageUploadFileValidationStrategy.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\upload;
 use wcf\util\ImageUtil;
 
diff --git a/wcfsetup/install/files/lib/system/upload/UploadFile.class.php b/wcfsetup/install/files/lib/system/upload/UploadFile.class.php
index 59532b8858..7d0a8a772f 100644
--- a/wcfsetup/install/files/lib/system/upload/UploadFile.class.php
+++ b/wcfsetup/install/files/lib/system/upload/UploadFile.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\upload;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/upload/UploadHandler.class.php b/wcfsetup/install/files/lib/system/upload/UploadHandler.class.php
index 7252f093d7..db23bc0d50 100644
--- a/wcfsetup/install/files/lib/system/upload/UploadHandler.class.php
+++ b/wcfsetup/install/files/lib/system/upload/UploadHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\upload;
 use wcf\util\FileUtil;
 
diff --git a/wcfsetup/install/files/lib/system/upload/UserCoverPhotoUploadFileValidationStrategy.class.php b/wcfsetup/install/files/lib/system/upload/UserCoverPhotoUploadFileValidationStrategy.class.php
index 476232eccd..79344e15c2 100644
--- a/wcfsetup/install/files/lib/system/upload/UserCoverPhotoUploadFileValidationStrategy.class.php
+++ b/wcfsetup/install/files/lib/system/upload/UserCoverPhotoUploadFileValidationStrategy.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\upload;
 use wcf\data\user\cover\photo\UserCoverPhoto;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/system/user/GroupedUserList.class.php b/wcfsetup/install/files/lib/system/user/GroupedUserList.class.php
index 0cc2492e81..e5649f19e3 100644
--- a/wcfsetup/install/files/lib/system/user/GroupedUserList.class.php
+++ b/wcfsetup/install/files/lib/system/user/GroupedUserList.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user;
 use wcf\data\user\UserProfile;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/system/user/UserBirthdayCache.class.php b/wcfsetup/install/files/lib/system/user/UserBirthdayCache.class.php
index 8d6ef28b80..709ca7a1a3 100644
--- a/wcfsetup/install/files/lib/system/user/UserBirthdayCache.class.php
+++ b/wcfsetup/install/files/lib/system/user/UserBirthdayCache.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user;
 use wcf\system\cache\builder\UserBirthdayCacheBuilder;
 use wcf\system\event\EventHandler;
diff --git a/wcfsetup/install/files/lib/system/user/UserProfileHandler.class.php b/wcfsetup/install/files/lib/system/user/UserProfileHandler.class.php
index aeb8a1c973..65a050a23f 100644
--- a/wcfsetup/install/files/lib/system/user/UserProfileHandler.class.php
+++ b/wcfsetup/install/files/lib/system/user/UserProfileHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user;
 use wcf\data\user\User;
 use wcf\data\user\UserProfile;
diff --git a/wcfsetup/install/files/lib/system/user/activity/event/ArticleCommentResponseUserActivityEvent.class.php b/wcfsetup/install/files/lib/system/user/activity/event/ArticleCommentResponseUserActivityEvent.class.php
index 9146db908d..9a24521845 100644
--- a/wcfsetup/install/files/lib/system/user/activity/event/ArticleCommentResponseUserActivityEvent.class.php
+++ b/wcfsetup/install/files/lib/system/user/activity/event/ArticleCommentResponseUserActivityEvent.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\activity\event;
 use wcf\data\article\ViewableArticleList;
 use wcf\data\comment\response\CommentResponseList;
diff --git a/wcfsetup/install/files/lib/system/user/activity/event/ArticleCommentUserActivityEvent.class.php b/wcfsetup/install/files/lib/system/user/activity/event/ArticleCommentUserActivityEvent.class.php
index 989d580d7e..caa98736b3 100644
--- a/wcfsetup/install/files/lib/system/user/activity/event/ArticleCommentUserActivityEvent.class.php
+++ b/wcfsetup/install/files/lib/system/user/activity/event/ArticleCommentUserActivityEvent.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\activity\event;
 use wcf\data\article\ViewableArticleList;
 use wcf\data\comment\CommentList;
diff --git a/wcfsetup/install/files/lib/system/user/activity/event/FollowUserActivityEvent.class.php b/wcfsetup/install/files/lib/system/user/activity/event/FollowUserActivityEvent.class.php
index 70120990b5..df042f59c0 100644
--- a/wcfsetup/install/files/lib/system/user/activity/event/FollowUserActivityEvent.class.php
+++ b/wcfsetup/install/files/lib/system/user/activity/event/FollowUserActivityEvent.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\activity\event;
 use wcf\data\user\UserList;
 use wcf\system\SingletonFactory;
diff --git a/wcfsetup/install/files/lib/system/user/activity/event/IUserActivityEvent.class.php b/wcfsetup/install/files/lib/system/user/activity/event/IUserActivityEvent.class.php
index 8d3ae69923..403be4633d 100644
--- a/wcfsetup/install/files/lib/system/user/activity/event/IUserActivityEvent.class.php
+++ b/wcfsetup/install/files/lib/system/user/activity/event/IUserActivityEvent.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\activity\event;
 use wcf\data\user\activity\event\ViewableUserActivityEvent;
 
diff --git a/wcfsetup/install/files/lib/system/user/activity/event/LikeableArticleUserActivityEvent.class.php b/wcfsetup/install/files/lib/system/user/activity/event/LikeableArticleUserActivityEvent.class.php
index 8f5faa56fc..9f9f890546 100644
--- a/wcfsetup/install/files/lib/system/user/activity/event/LikeableArticleUserActivityEvent.class.php
+++ b/wcfsetup/install/files/lib/system/user/activity/event/LikeableArticleUserActivityEvent.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\activity\event;
 use wcf\data\article\ViewableArticleList;
 use wcf\system\SingletonFactory;
diff --git a/wcfsetup/install/files/lib/system/user/activity/event/ProfileCommentResponseUserActivityEvent.class.php b/wcfsetup/install/files/lib/system/user/activity/event/ProfileCommentResponseUserActivityEvent.class.php
index 2025e7434b..caf1af40b5 100644
--- a/wcfsetup/install/files/lib/system/user/activity/event/ProfileCommentResponseUserActivityEvent.class.php
+++ b/wcfsetup/install/files/lib/system/user/activity/event/ProfileCommentResponseUserActivityEvent.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\activity\event;
 use wcf\data\comment\response\CommentResponseList;
 use wcf\data\comment\CommentList;
diff --git a/wcfsetup/install/files/lib/system/user/activity/event/ProfileCommentUserActivityEvent.class.php b/wcfsetup/install/files/lib/system/user/activity/event/ProfileCommentUserActivityEvent.class.php
index 8cd2f5d1bf..377cc10e9c 100644
--- a/wcfsetup/install/files/lib/system/user/activity/event/ProfileCommentUserActivityEvent.class.php
+++ b/wcfsetup/install/files/lib/system/user/activity/event/ProfileCommentUserActivityEvent.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\activity\event;
 use wcf\data\comment\CommentList;
 use wcf\system\cache\runtime\UserProfileRuntimeCache;
diff --git a/wcfsetup/install/files/lib/system/user/activity/event/TrophyReceivedUserActivityEvent.class.php b/wcfsetup/install/files/lib/system/user/activity/event/TrophyReceivedUserActivityEvent.class.php
index 0c9b1843ea..da14e52cbd 100644
--- a/wcfsetup/install/files/lib/system/user/activity/event/TrophyReceivedUserActivityEvent.class.php
+++ b/wcfsetup/install/files/lib/system/user/activity/event/TrophyReceivedUserActivityEvent.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\activity\event;
 use wcf\data\user\trophy\UserTrophyList;
 use wcf\system\SingletonFactory;
diff --git a/wcfsetup/install/files/lib/system/user/activity/event/UserActivityEventHandler.class.php b/wcfsetup/install/files/lib/system/user/activity/event/UserActivityEventHandler.class.php
index fabe441e29..3a05c7c686 100644
--- a/wcfsetup/install/files/lib/system/user/activity/event/UserActivityEventHandler.class.php
+++ b/wcfsetup/install/files/lib/system/user/activity/event/UserActivityEventHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\activity\event;
 use wcf\data\object\type\ObjectType;
 use wcf\data\object\type\ObjectTypeCache;
diff --git a/wcfsetup/install/files/lib/system/user/activity/point/UserActivityPointHandler.class.php b/wcfsetup/install/files/lib/system/user/activity/point/UserActivityPointHandler.class.php
index a9a8e6eeab..19b229632c 100644
--- a/wcfsetup/install/files/lib/system/user/activity/point/UserActivityPointHandler.class.php
+++ b/wcfsetup/install/files/lib/system/user/activity/point/UserActivityPointHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\activity\point;
 use wcf\data\object\type\ObjectType;
 use wcf\data\object\type\ObjectTypeCache;
diff --git a/wcfsetup/install/files/lib/system/user/authentication/AbstractUserAuthentication.class.php b/wcfsetup/install/files/lib/system/user/authentication/AbstractUserAuthentication.class.php
index e136e8b93c..6f0846d4cd 100644
--- a/wcfsetup/install/files/lib/system/user/authentication/AbstractUserAuthentication.class.php
+++ b/wcfsetup/install/files/lib/system/user/authentication/AbstractUserAuthentication.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\authentication;
 use wcf\system\SingletonFactory;
 
diff --git a/wcfsetup/install/files/lib/system/user/authentication/DefaultUserAuthentication.class.php b/wcfsetup/install/files/lib/system/user/authentication/DefaultUserAuthentication.class.php
index 82ac1e36a7..7124f07f13 100644
--- a/wcfsetup/install/files/lib/system/user/authentication/DefaultUserAuthentication.class.php
+++ b/wcfsetup/install/files/lib/system/user/authentication/DefaultUserAuthentication.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\authentication;
 use wcf\data\user\User;
 use wcf\system\exception\UserInputException;
diff --git a/wcfsetup/install/files/lib/system/user/authentication/EmailUserAuthentication.class.php b/wcfsetup/install/files/lib/system/user/authentication/EmailUserAuthentication.class.php
index 7513e3e66f..5775d1a3c7 100644
--- a/wcfsetup/install/files/lib/system/user/authentication/EmailUserAuthentication.class.php
+++ b/wcfsetup/install/files/lib/system/user/authentication/EmailUserAuthentication.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\authentication;
 use wcf\data\user\User;
 
diff --git a/wcfsetup/install/files/lib/system/user/authentication/IUserAuthentication.class.php b/wcfsetup/install/files/lib/system/user/authentication/IUserAuthentication.class.php
index dfe43a5123..43898ade73 100644
--- a/wcfsetup/install/files/lib/system/user/authentication/IUserAuthentication.class.php
+++ b/wcfsetup/install/files/lib/system/user/authentication/IUserAuthentication.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\authentication;
 use wcf\data\user\User;
 
diff --git a/wcfsetup/install/files/lib/system/user/authentication/UserAuthenticationFactory.class.php b/wcfsetup/install/files/lib/system/user/authentication/UserAuthenticationFactory.class.php
index 43bca1e35e..d07d27105d 100644
--- a/wcfsetup/install/files/lib/system/user/authentication/UserAuthenticationFactory.class.php
+++ b/wcfsetup/install/files/lib/system/user/authentication/UserAuthenticationFactory.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\authentication;
 use wcf\system\event\EventHandler;
 use wcf\system\exception\ImplementationException;
diff --git a/wcfsetup/install/files/lib/system/user/collapsible/content/UserCollapsibleContentHandler.class.php b/wcfsetup/install/files/lib/system/user/collapsible/content/UserCollapsibleContentHandler.class.php
index 7c7a8fdc67..1ab8b87821 100644
--- a/wcfsetup/install/files/lib/system/user/collapsible/content/UserCollapsibleContentHandler.class.php
+++ b/wcfsetup/install/files/lib/system/user/collapsible/content/UserCollapsibleContentHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\collapsible\content;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\system\database\util\PreparedStatementConditionBuilder;
diff --git a/wcfsetup/install/files/lib/system/user/group/assignment/UserGroupAssignmentHandler.class.php b/wcfsetup/install/files/lib/system/user/group/assignment/UserGroupAssignmentHandler.class.php
index f1df050be0..031fc6ae86 100644
--- a/wcfsetup/install/files/lib/system/user/group/assignment/UserGroupAssignmentHandler.class.php
+++ b/wcfsetup/install/files/lib/system/user/group/assignment/UserGroupAssignmentHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\group\assignment;
 use wcf\data\object\type\ObjectType;
 use wcf\data\object\type\ObjectTypeCache;
diff --git a/wcfsetup/install/files/lib/system/user/notification/TestableUserNotificationEventHandler.class.php b/wcfsetup/install/files/lib/system/user/notification/TestableUserNotificationEventHandler.class.php
index f922cbda45..b4fea7baaf 100644
--- a/wcfsetup/install/files/lib/system/user/notification/TestableUserNotificationEventHandler.class.php
+++ b/wcfsetup/install/files/lib/system/user/notification/TestableUserNotificationEventHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\notification;
 use wcf\data\language\Language;
 use wcf\data\user\notification\event\UserNotificationEvent;
diff --git a/wcfsetup/install/files/lib/system/user/notification/UserNotificationHandler.class.php b/wcfsetup/install/files/lib/system/user/notification/UserNotificationHandler.class.php
index 207e1e5465..84e61c2bac 100644
--- a/wcfsetup/install/files/lib/system/user/notification/UserNotificationHandler.class.php
+++ b/wcfsetup/install/files/lib/system/user/notification/UserNotificationHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\notification;
 use wcf\data\object\type\ObjectType;
 use wcf\data\object\type\ObjectTypeCache;
diff --git a/wcfsetup/install/files/lib/system/user/notification/event/AbstractSharedUserNotificationEvent.class.php b/wcfsetup/install/files/lib/system/user/notification/event/AbstractSharedUserNotificationEvent.class.php
index a49047bf68..745dd66029 100644
--- a/wcfsetup/install/files/lib/system/user/notification/event/AbstractSharedUserNotificationEvent.class.php
+++ b/wcfsetup/install/files/lib/system/user/notification/event/AbstractSharedUserNotificationEvent.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\notification\event;
 use wcf\data\user\notification\UserNotification;
 use wcf\data\user\UserProfile;
diff --git a/wcfsetup/install/files/lib/system/user/notification/event/AbstractUserNotificationEvent.class.php b/wcfsetup/install/files/lib/system/user/notification/event/AbstractUserNotificationEvent.class.php
index 1c732fe882..b14e01e75d 100644
--- a/wcfsetup/install/files/lib/system/user/notification/event/AbstractUserNotificationEvent.class.php
+++ b/wcfsetup/install/files/lib/system/user/notification/event/AbstractUserNotificationEvent.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\notification\event;
 use wcf\data\language\Language;
 use wcf\data\user\notification\event\UserNotificationEvent;
diff --git a/wcfsetup/install/files/lib/system/user/notification/event/ExpiringPaidSubscriptionUserUserNotificationEvent.class.php b/wcfsetup/install/files/lib/system/user/notification/event/ExpiringPaidSubscriptionUserUserNotificationEvent.class.php
index b3c83bcc9b..5e6a42f365 100644
--- a/wcfsetup/install/files/lib/system/user/notification/event/ExpiringPaidSubscriptionUserUserNotificationEvent.class.php
+++ b/wcfsetup/install/files/lib/system/user/notification/event/ExpiringPaidSubscriptionUserUserNotificationEvent.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\notification\event;
 use wcf\data\paid\subscription\user\PaidSubscriptionUser;
 use wcf\data\paid\subscription\user\PaidSubscriptionUserAction;
diff --git a/wcfsetup/install/files/lib/system/user/notification/event/ITestableUserNotificationEvent.class.php b/wcfsetup/install/files/lib/system/user/notification/event/ITestableUserNotificationEvent.class.php
index e083de4f95..803d747724 100644
--- a/wcfsetup/install/files/lib/system/user/notification/event/ITestableUserNotificationEvent.class.php
+++ b/wcfsetup/install/files/lib/system/user/notification/event/ITestableUserNotificationEvent.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\notification\event;
 use wcf\data\language\Language;
 use wcf\data\user\UserProfile;
diff --git a/wcfsetup/install/files/lib/system/user/notification/event/IUserNotificationEvent.class.php b/wcfsetup/install/files/lib/system/user/notification/event/IUserNotificationEvent.class.php
index 667d763663..3304194dc4 100644
--- a/wcfsetup/install/files/lib/system/user/notification/event/IUserNotificationEvent.class.php
+++ b/wcfsetup/install/files/lib/system/user/notification/event/IUserNotificationEvent.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\notification\event;
 use wcf\data\language\Language;
 use wcf\data\user\notification\event\UserNotificationEvent;
diff --git a/wcfsetup/install/files/lib/system/user/notification/event/ModerationQueueCommentResponseUserNotificationEvent.class.php b/wcfsetup/install/files/lib/system/user/notification/event/ModerationQueueCommentResponseUserNotificationEvent.class.php
index 28c7894cc3..43dee2f9c1 100644
--- a/wcfsetup/install/files/lib/system/user/notification/event/ModerationQueueCommentResponseUserNotificationEvent.class.php
+++ b/wcfsetup/install/files/lib/system/user/notification/event/ModerationQueueCommentResponseUserNotificationEvent.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\notification\event;
 use wcf\data\moderation\queue\ViewableModerationQueue;
 use wcf\data\object\type\ObjectTypeCache;
diff --git a/wcfsetup/install/files/lib/system/user/notification/event/ModerationQueueCommentUserNotificationEvent.class.php b/wcfsetup/install/files/lib/system/user/notification/event/ModerationQueueCommentUserNotificationEvent.class.php
index d46c44f877..dc002b4be5 100644
--- a/wcfsetup/install/files/lib/system/user/notification/event/ModerationQueueCommentUserNotificationEvent.class.php
+++ b/wcfsetup/install/files/lib/system/user/notification/event/ModerationQueueCommentUserNotificationEvent.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\notification\event;
 use wcf\data\moderation\queue\ViewableModerationQueue;
 use wcf\data\object\type\ObjectTypeCache;
diff --git a/wcfsetup/install/files/lib/system/user/notification/event/TTestableCategorizedUserNotificationEvent.class.php b/wcfsetup/install/files/lib/system/user/notification/event/TTestableCategorizedUserNotificationEvent.class.php
index fa3ceb49c1..33edf12f7e 100644
--- a/wcfsetup/install/files/lib/system/user/notification/event/TTestableCategorizedUserNotificationEvent.class.php
+++ b/wcfsetup/install/files/lib/system/user/notification/event/TTestableCategorizedUserNotificationEvent.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\notification\event;
 use wcf\data\category\Category;
 use wcf\data\category\CategoryAction;
diff --git a/wcfsetup/install/files/lib/system/user/notification/event/TTestableCommentLikeUserNotificationEvent.class.php b/wcfsetup/install/files/lib/system/user/notification/event/TTestableCommentLikeUserNotificationEvent.class.php
index d11f071f8e..552e8cebb9 100644
--- a/wcfsetup/install/files/lib/system/user/notification/event/TTestableCommentLikeUserNotificationEvent.class.php
+++ b/wcfsetup/install/files/lib/system/user/notification/event/TTestableCommentLikeUserNotificationEvent.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\notification\event;
 use wcf\data\comment\LikeableComment;
 use wcf\data\user\UserProfile;
diff --git a/wcfsetup/install/files/lib/system/user/notification/event/TTestableCommentResponseLikeUserNotificationEvent.class.php b/wcfsetup/install/files/lib/system/user/notification/event/TTestableCommentResponseLikeUserNotificationEvent.class.php
index fbef8891a5..50df86fab1 100644
--- a/wcfsetup/install/files/lib/system/user/notification/event/TTestableCommentResponseLikeUserNotificationEvent.class.php
+++ b/wcfsetup/install/files/lib/system/user/notification/event/TTestableCommentResponseLikeUserNotificationEvent.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\notification\event;
 use wcf\data\comment\response\LikeableCommentResponse;
 use wcf\data\user\UserProfile;
diff --git a/wcfsetup/install/files/lib/system/user/notification/event/TTestableCommentResponseUserNotificationEvent.class.php b/wcfsetup/install/files/lib/system/user/notification/event/TTestableCommentResponseUserNotificationEvent.class.php
index 073f470b4f..40ca8a89bb 100644
--- a/wcfsetup/install/files/lib/system/user/notification/event/TTestableCommentResponseUserNotificationEvent.class.php
+++ b/wcfsetup/install/files/lib/system/user/notification/event/TTestableCommentResponseUserNotificationEvent.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\notification\event;
 use wcf\data\comment\response\CommentResponse;
 use wcf\data\comment\response\CommentResponseAction;
diff --git a/wcfsetup/install/files/lib/system/user/notification/event/TTestableCommentUserNotificationEvent.class.php b/wcfsetup/install/files/lib/system/user/notification/event/TTestableCommentUserNotificationEvent.class.php
index 1047a83212..da9574b506 100644
--- a/wcfsetup/install/files/lib/system/user/notification/event/TTestableCommentUserNotificationEvent.class.php
+++ b/wcfsetup/install/files/lib/system/user/notification/event/TTestableCommentUserNotificationEvent.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\notification\event;
 use wcf\data\comment\Comment;
 use wcf\data\comment\CommentAction;
diff --git a/wcfsetup/install/files/lib/system/user/notification/event/TTestableLikeUserNotificationEvent.class.php b/wcfsetup/install/files/lib/system/user/notification/event/TTestableLikeUserNotificationEvent.class.php
index 3b40ac1c33..f5dfb524df 100644
--- a/wcfsetup/install/files/lib/system/user/notification/event/TTestableLikeUserNotificationEvent.class.php
+++ b/wcfsetup/install/files/lib/system/user/notification/event/TTestableLikeUserNotificationEvent.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\notification\event;
 use wcf\data\like\object\ILikeObject;
 use wcf\data\like\Like;
diff --git a/wcfsetup/install/files/lib/system/user/notification/event/TTestableModerationQueueUserNotificationEvent.class.php b/wcfsetup/install/files/lib/system/user/notification/event/TTestableModerationQueueUserNotificationEvent.class.php
index 7ab747267a..ddcefa3c3b 100644
--- a/wcfsetup/install/files/lib/system/user/notification/event/TTestableModerationQueueUserNotificationEvent.class.php
+++ b/wcfsetup/install/files/lib/system/user/notification/event/TTestableModerationQueueUserNotificationEvent.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\notification\event;
 use wcf\data\moderation\queue\ModerationQueue;
 use wcf\data\object\type\ObjectTypeCache;
diff --git a/wcfsetup/install/files/lib/system/user/notification/event/TTestableUserNotificationEvent.class.php b/wcfsetup/install/files/lib/system/user/notification/event/TTestableUserNotificationEvent.class.php
index c723d5b818..a4e2ef9768 100644
--- a/wcfsetup/install/files/lib/system/user/notification/event/TTestableUserNotificationEvent.class.php
+++ b/wcfsetup/install/files/lib/system/user/notification/event/TTestableUserNotificationEvent.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\notification\event;
 use wcf\system\user\notification\object\IUserNotificationObject;
 
diff --git a/wcfsetup/install/files/lib/system/user/notification/event/UserFollowFollowingUserNotificationEvent.class.php b/wcfsetup/install/files/lib/system/user/notification/event/UserFollowFollowingUserNotificationEvent.class.php
index ecee6f3b82..4f03f686ec 100644
--- a/wcfsetup/install/files/lib/system/user/notification/event/UserFollowFollowingUserNotificationEvent.class.php
+++ b/wcfsetup/install/files/lib/system/user/notification/event/UserFollowFollowingUserNotificationEvent.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\notification\event;
 use wcf\data\user\follow\UserFollow;
 use wcf\data\user\follow\UserFollowAction;
diff --git a/wcfsetup/install/files/lib/system/user/notification/event/UserProfileCommentLikeUserNotificationEvent.class.php b/wcfsetup/install/files/lib/system/user/notification/event/UserProfileCommentLikeUserNotificationEvent.class.php
index 1e0016ed07..d1f6c89b0d 100644
--- a/wcfsetup/install/files/lib/system/user/notification/event/UserProfileCommentLikeUserNotificationEvent.class.php
+++ b/wcfsetup/install/files/lib/system/user/notification/event/UserProfileCommentLikeUserNotificationEvent.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\notification\event;
 use wcf\data\user\UserProfile;
 use wcf\system\cache\runtime\UserProfileRuntimeCache;
diff --git a/wcfsetup/install/files/lib/system/user/notification/event/UserProfileCommentResponseLikeUserNotificationEvent.class.php b/wcfsetup/install/files/lib/system/user/notification/event/UserProfileCommentResponseLikeUserNotificationEvent.class.php
index 6b540d4687..8c0816a3af 100644
--- a/wcfsetup/install/files/lib/system/user/notification/event/UserProfileCommentResponseLikeUserNotificationEvent.class.php
+++ b/wcfsetup/install/files/lib/system/user/notification/event/UserProfileCommentResponseLikeUserNotificationEvent.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\notification\event;
 use wcf\data\user\UserProfile;
 use wcf\system\cache\runtime\UserProfileRuntimeCache;
diff --git a/wcfsetup/install/files/lib/system/user/notification/event/UserProfileCommentResponseOwnerUserNotificationEvent.class.php b/wcfsetup/install/files/lib/system/user/notification/event/UserProfileCommentResponseOwnerUserNotificationEvent.class.php
index 7564bd0476..5c24da5404 100644
--- a/wcfsetup/install/files/lib/system/user/notification/event/UserProfileCommentResponseOwnerUserNotificationEvent.class.php
+++ b/wcfsetup/install/files/lib/system/user/notification/event/UserProfileCommentResponseOwnerUserNotificationEvent.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\notification\event;
 use wcf\data\user\UserProfile;
 use wcf\system\cache\runtime\CommentRuntimeCache;
diff --git a/wcfsetup/install/files/lib/system/user/notification/event/UserProfileCommentResponseUserNotificationEvent.class.php b/wcfsetup/install/files/lib/system/user/notification/event/UserProfileCommentResponseUserNotificationEvent.class.php
index fbe6f3791c..bb42f56303 100644
--- a/wcfsetup/install/files/lib/system/user/notification/event/UserProfileCommentResponseUserNotificationEvent.class.php
+++ b/wcfsetup/install/files/lib/system/user/notification/event/UserProfileCommentResponseUserNotificationEvent.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\notification\event;
 use wcf\data\user\UserProfile;
 use wcf\system\cache\runtime\CommentRuntimeCache;
diff --git a/wcfsetup/install/files/lib/system/user/notification/event/UserProfileCommentUserNotificationEvent.class.php b/wcfsetup/install/files/lib/system/user/notification/event/UserProfileCommentUserNotificationEvent.class.php
index 23128be614..38e01c531b 100644
--- a/wcfsetup/install/files/lib/system/user/notification/event/UserProfileCommentUserNotificationEvent.class.php
+++ b/wcfsetup/install/files/lib/system/user/notification/event/UserProfileCommentUserNotificationEvent.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\notification\event;
 use wcf\data\user\UserProfile;
 use wcf\system\cache\runtime\UserProfileRuntimeCache;
diff --git a/wcfsetup/install/files/lib/system/user/notification/event/UserTrophyReceivedNotificationEvent.class.php b/wcfsetup/install/files/lib/system/user/notification/event/UserTrophyReceivedNotificationEvent.class.php
index 7e7f714f29..6c7517be77 100644
--- a/wcfsetup/install/files/lib/system/user/notification/event/UserTrophyReceivedNotificationEvent.class.php
+++ b/wcfsetup/install/files/lib/system/user/notification/event/UserTrophyReceivedNotificationEvent.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\notification\event;
 use wcf\data\trophy\category\TrophyCategory;
 use wcf\data\trophy\category\TrophyCategoryCache;
diff --git a/wcfsetup/install/files/lib/system/user/notification/object/CommentResponseUserNotificationObject.class.php b/wcfsetup/install/files/lib/system/user/notification/object/CommentResponseUserNotificationObject.class.php
index d156597838..79e41c82b0 100644
--- a/wcfsetup/install/files/lib/system/user/notification/object/CommentResponseUserNotificationObject.class.php
+++ b/wcfsetup/install/files/lib/system/user/notification/object/CommentResponseUserNotificationObject.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\notification\object;
 use wcf\data\comment\response\CommentResponse;
 use wcf\data\DatabaseObjectDecorator;
diff --git a/wcfsetup/install/files/lib/system/user/notification/object/CommentUserNotificationObject.class.php b/wcfsetup/install/files/lib/system/user/notification/object/CommentUserNotificationObject.class.php
index b13e048219..49af1c8e0a 100644
--- a/wcfsetup/install/files/lib/system/user/notification/object/CommentUserNotificationObject.class.php
+++ b/wcfsetup/install/files/lib/system/user/notification/object/CommentUserNotificationObject.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\notification\object;
 use wcf\data\comment\Comment;
 use wcf\data\DatabaseObjectDecorator;
diff --git a/wcfsetup/install/files/lib/system/user/notification/object/IStackableUserNotificationObject.class.php b/wcfsetup/install/files/lib/system/user/notification/object/IStackableUserNotificationObject.class.php
index a48a81bc9d..7f3f9bd6db 100644
--- a/wcfsetup/install/files/lib/system/user/notification/object/IStackableUserNotificationObject.class.php
+++ b/wcfsetup/install/files/lib/system/user/notification/object/IStackableUserNotificationObject.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\notification\object;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/user/notification/object/IUserNotificationObject.class.php b/wcfsetup/install/files/lib/system/user/notification/object/IUserNotificationObject.class.php
index 731e21c906..82c61108dc 100644
--- a/wcfsetup/install/files/lib/system/user/notification/object/IUserNotificationObject.class.php
+++ b/wcfsetup/install/files/lib/system/user/notification/object/IUserNotificationObject.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\notification\object;
 use wcf\data\IDatabaseObjectProcessor;
 use wcf\data\ITitledObject;
diff --git a/wcfsetup/install/files/lib/system/user/notification/object/LikeUserNotificationObject.class.php b/wcfsetup/install/files/lib/system/user/notification/object/LikeUserNotificationObject.class.php
index 8a478b8539..9bd7b9a4cd 100644
--- a/wcfsetup/install/files/lib/system/user/notification/object/LikeUserNotificationObject.class.php
+++ b/wcfsetup/install/files/lib/system/user/notification/object/LikeUserNotificationObject.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\notification\object;
 use wcf\data\like\Like;
 use wcf\data\DatabaseObjectDecorator;
diff --git a/wcfsetup/install/files/lib/system/user/notification/object/PaidSubscriptionUserUserNotificationObject.class.php b/wcfsetup/install/files/lib/system/user/notification/object/PaidSubscriptionUserUserNotificationObject.class.php
index a11bf07213..9ebe7f2b08 100644
--- a/wcfsetup/install/files/lib/system/user/notification/object/PaidSubscriptionUserUserNotificationObject.class.php
+++ b/wcfsetup/install/files/lib/system/user/notification/object/PaidSubscriptionUserUserNotificationObject.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\notification\object;
 use wcf\data\paid\subscription\user\PaidSubscriptionUser;
 use wcf\data\DatabaseObjectDecorator;
diff --git a/wcfsetup/install/files/lib/system/user/notification/object/UserFollowUserNotificationObject.class.php b/wcfsetup/install/files/lib/system/user/notification/object/UserFollowUserNotificationObject.class.php
index 9d6ddf7aea..be41b388f1 100644
--- a/wcfsetup/install/files/lib/system/user/notification/object/UserFollowUserNotificationObject.class.php
+++ b/wcfsetup/install/files/lib/system/user/notification/object/UserFollowUserNotificationObject.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\notification\object;
 use wcf\data\user\follow\UserFollow;
 use wcf\data\DatabaseObjectDecorator;
diff --git a/wcfsetup/install/files/lib/system/user/notification/object/UserTrophyNotificationObject.class.php b/wcfsetup/install/files/lib/system/user/notification/object/UserTrophyNotificationObject.class.php
index 52ce88fef2..7fbf35c4aa 100644
--- a/wcfsetup/install/files/lib/system/user/notification/object/UserTrophyNotificationObject.class.php
+++ b/wcfsetup/install/files/lib/system/user/notification/object/UserTrophyNotificationObject.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\notification\object;
 use wcf\data\user\trophy\UserTrophy;
 use wcf\data\DatabaseObjectDecorator;
diff --git a/wcfsetup/install/files/lib/system/user/notification/object/type/AbstractUserNotificationObjectType.class.php b/wcfsetup/install/files/lib/system/user/notification/object/type/AbstractUserNotificationObjectType.class.php
index 8c35168c6b..b176c4dafc 100644
--- a/wcfsetup/install/files/lib/system/user/notification/object/type/AbstractUserNotificationObjectType.class.php
+++ b/wcfsetup/install/files/lib/system/user/notification/object/type/AbstractUserNotificationObjectType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\notification\object\type;
 use wcf\data\object\type\AbstractObjectTypeProcessor;
 use wcf\data\DatabaseObjectList;
diff --git a/wcfsetup/install/files/lib/system/user/notification/object/type/ICommentUserNotificationObjectType.class.php b/wcfsetup/install/files/lib/system/user/notification/object/type/ICommentUserNotificationObjectType.class.php
index 4be2efb32e..ae6f111b97 100644
--- a/wcfsetup/install/files/lib/system/user/notification/object/type/ICommentUserNotificationObjectType.class.php
+++ b/wcfsetup/install/files/lib/system/user/notification/object/type/ICommentUserNotificationObjectType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\notification\object\type;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/user/notification/object/type/IMultiRecipientCommentUserNotificationObjectType.class.php b/wcfsetup/install/files/lib/system/user/notification/object/type/IMultiRecipientCommentUserNotificationObjectType.class.php
index 7be0771451..913eaa77ec 100644
--- a/wcfsetup/install/files/lib/system/user/notification/object/type/IMultiRecipientCommentUserNotificationObjectType.class.php
+++ b/wcfsetup/install/files/lib/system/user/notification/object/type/IMultiRecipientCommentUserNotificationObjectType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\notification\object\type;
 use wcf\data\comment\Comment;
 
diff --git a/wcfsetup/install/files/lib/system/user/notification/object/type/IUserNotificationObjectType.class.php b/wcfsetup/install/files/lib/system/user/notification/object/type/IUserNotificationObjectType.class.php
index 91a39396eb..194ae6048a 100644
--- a/wcfsetup/install/files/lib/system/user/notification/object/type/IUserNotificationObjectType.class.php
+++ b/wcfsetup/install/files/lib/system/user/notification/object/type/IUserNotificationObjectType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\notification\object\type;
 use wcf\data\IDatabaseObjectProcessor;
 use wcf\system\user\notification\object\IUserNotificationObject;
diff --git a/wcfsetup/install/files/lib/system/user/notification/object/type/LikeUserNotificationObjectType.class.php b/wcfsetup/install/files/lib/system/user/notification/object/type/LikeUserNotificationObjectType.class.php
index fb0f07ecd7..ba51cf583d 100644
--- a/wcfsetup/install/files/lib/system/user/notification/object/type/LikeUserNotificationObjectType.class.php
+++ b/wcfsetup/install/files/lib/system/user/notification/object/type/LikeUserNotificationObjectType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\notification\object\type;
 use wcf\data\like\Like;
 use wcf\data\like\LikeList;
diff --git a/wcfsetup/install/files/lib/system/user/notification/object/type/ModerationQueueCommentResponseUserNotificationObjectType.class.php b/wcfsetup/install/files/lib/system/user/notification/object/type/ModerationQueueCommentResponseUserNotificationObjectType.class.php
index f4e98b8531..5939354cec 100644
--- a/wcfsetup/install/files/lib/system/user/notification/object/type/ModerationQueueCommentResponseUserNotificationObjectType.class.php
+++ b/wcfsetup/install/files/lib/system/user/notification/object/type/ModerationQueueCommentResponseUserNotificationObjectType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\notification\object\type;
 use wcf\data\comment\response\CommentResponse;
 use wcf\data\comment\response\CommentResponseList;
diff --git a/wcfsetup/install/files/lib/system/user/notification/object/type/ModerationQueueCommentUserNotificationObjectType.class.php b/wcfsetup/install/files/lib/system/user/notification/object/type/ModerationQueueCommentUserNotificationObjectType.class.php
index 4dc91786d6..cf7b1b4ad7 100644
--- a/wcfsetup/install/files/lib/system/user/notification/object/type/ModerationQueueCommentUserNotificationObjectType.class.php
+++ b/wcfsetup/install/files/lib/system/user/notification/object/type/ModerationQueueCommentUserNotificationObjectType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\notification\object\type;
 use wcf\data\comment\Comment;
 use wcf\data\comment\CommentList;
diff --git a/wcfsetup/install/files/lib/system/user/notification/object/type/PaidSubscriptionUserUserNotificationObjectType.class.php b/wcfsetup/install/files/lib/system/user/notification/object/type/PaidSubscriptionUserUserNotificationObjectType.class.php
index 63f8ac8a24..9e84a56535 100644
--- a/wcfsetup/install/files/lib/system/user/notification/object/type/PaidSubscriptionUserUserNotificationObjectType.class.php
+++ b/wcfsetup/install/files/lib/system/user/notification/object/type/PaidSubscriptionUserUserNotificationObjectType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\notification\object\type;
 use wcf\data\paid\subscription\user\PaidSubscriptionUser;
 use wcf\data\paid\subscription\user\PaidSubscriptionUserList;
diff --git a/wcfsetup/install/files/lib/system/user/notification/object/type/TMultiRecipientModerationQueueCommentUserNotificationObjectType.class.php b/wcfsetup/install/files/lib/system/user/notification/object/type/TMultiRecipientModerationQueueCommentUserNotificationObjectType.class.php
index 6f686dba06..1b8db56090 100644
--- a/wcfsetup/install/files/lib/system/user/notification/object/type/TMultiRecipientModerationQueueCommentUserNotificationObjectType.class.php
+++ b/wcfsetup/install/files/lib/system/user/notification/object/type/TMultiRecipientModerationQueueCommentUserNotificationObjectType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\notification\object\type;
 use wcf\data\comment\Comment;
 use wcf\data\user\UserProfile;
diff --git a/wcfsetup/install/files/lib/system/user/notification/object/type/UserFollowUserNotificationObjectType.class.php b/wcfsetup/install/files/lib/system/user/notification/object/type/UserFollowUserNotificationObjectType.class.php
index cfca0b5cb7..eb4d6ff181 100644
--- a/wcfsetup/install/files/lib/system/user/notification/object/type/UserFollowUserNotificationObjectType.class.php
+++ b/wcfsetup/install/files/lib/system/user/notification/object/type/UserFollowUserNotificationObjectType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\notification\object\type;
 use wcf\data\user\follow\UserFollow;
 use wcf\data\user\follow\UserFollowList;
diff --git a/wcfsetup/install/files/lib/system/user/notification/object/type/UserProfileCommentResponseUserNotificationObjectType.class.php b/wcfsetup/install/files/lib/system/user/notification/object/type/UserProfileCommentResponseUserNotificationObjectType.class.php
index 52a0c3ba7e..fd230cb729 100644
--- a/wcfsetup/install/files/lib/system/user/notification/object/type/UserProfileCommentResponseUserNotificationObjectType.class.php
+++ b/wcfsetup/install/files/lib/system/user/notification/object/type/UserProfileCommentResponseUserNotificationObjectType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\notification\object\type;
 use wcf\data\comment\response\CommentResponse;
 use wcf\data\comment\response\CommentResponseList;
diff --git a/wcfsetup/install/files/lib/system/user/notification/object/type/UserProfileCommentUserNotificationObjectType.class.php b/wcfsetup/install/files/lib/system/user/notification/object/type/UserProfileCommentUserNotificationObjectType.class.php
index f518904e1c..dfcf97c392 100644
--- a/wcfsetup/install/files/lib/system/user/notification/object/type/UserProfileCommentUserNotificationObjectType.class.php
+++ b/wcfsetup/install/files/lib/system/user/notification/object/type/UserProfileCommentUserNotificationObjectType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\notification\object\type;
 use wcf\data\comment\Comment;
 use wcf\data\comment\CommentList;
diff --git a/wcfsetup/install/files/lib/system/user/notification/object/type/UserTrophyNotificationObjectType.class.php b/wcfsetup/install/files/lib/system/user/notification/object/type/UserTrophyNotificationObjectType.class.php
index 13603b20bc..0587784d0b 100644
--- a/wcfsetup/install/files/lib/system/user/notification/object/type/UserTrophyNotificationObjectType.class.php
+++ b/wcfsetup/install/files/lib/system/user/notification/object/type/UserTrophyNotificationObjectType.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\notification\object\type;
 use wcf\data\user\trophy\UserTrophy;
 use wcf\data\user\trophy\UserTrophyList;
diff --git a/wcfsetup/install/files/lib/system/user/object/watch/IUserObjectWatch.class.php b/wcfsetup/install/files/lib/system/user/object/watch/IUserObjectWatch.class.php
index ce5752e50c..c4117135f2 100644
--- a/wcfsetup/install/files/lib/system/user/object/watch/IUserObjectWatch.class.php
+++ b/wcfsetup/install/files/lib/system/user/object/watch/IUserObjectWatch.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\object\watch;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/user/object/watch/UserObjectWatchHandler.class.php b/wcfsetup/install/files/lib/system/user/object/watch/UserObjectWatchHandler.class.php
index 00c360b126..62b91ac256 100644
--- a/wcfsetup/install/files/lib/system/user/object/watch/UserObjectWatchHandler.class.php
+++ b/wcfsetup/install/files/lib/system/user/object/watch/UserObjectWatchHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\object\watch;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\system\database\util\PreparedStatementConditionBuilder;
diff --git a/wcfsetup/install/files/lib/system/user/online/location/IUserOnlineLocation.class.php b/wcfsetup/install/files/lib/system/user/online/location/IUserOnlineLocation.class.php
index 30bfae9ec4..57d287d6fe 100644
--- a/wcfsetup/install/files/lib/system/user/online/location/IUserOnlineLocation.class.php
+++ b/wcfsetup/install/files/lib/system/user/online/location/IUserOnlineLocation.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\online\location;
 use wcf\data\user\online\UserOnline;
 
diff --git a/wcfsetup/install/files/lib/system/user/online/location/UserOnlineLocationHandler.class.php b/wcfsetup/install/files/lib/system/user/online/location/UserOnlineLocationHandler.class.php
index 3209ccd89a..fe1a931139 100644
--- a/wcfsetup/install/files/lib/system/user/online/location/UserOnlineLocationHandler.class.php
+++ b/wcfsetup/install/files/lib/system/user/online/location/UserOnlineLocationHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\online\location;
 use wcf\data\user\online\UserOnline;
 use wcf\system\SingletonFactory;
diff --git a/wcfsetup/install/files/lib/system/user/signature/SignatureCache.class.php b/wcfsetup/install/files/lib/system/user/signature/SignatureCache.class.php
index f592a3729d..dc08fea512 100644
--- a/wcfsetup/install/files/lib/system/user/signature/SignatureCache.class.php
+++ b/wcfsetup/install/files/lib/system/user/signature/SignatureCache.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\signature;
 use wcf\data\user\User;
 use wcf\system\html\output\HtmlOutputProcessor;
diff --git a/wcfsetup/install/files/lib/system/user/storage/UserStorageHandler.class.php b/wcfsetup/install/files/lib/system/user/storage/UserStorageHandler.class.php
index d8b585a82a..a18d65ef32 100644
--- a/wcfsetup/install/files/lib/system/user/storage/UserStorageHandler.class.php
+++ b/wcfsetup/install/files/lib/system/user/storage/UserStorageHandler.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\user\storage;
 use wcf\system\cache\source\RedisCacheSource;
 use wcf\system\cache\CacheHandler;
diff --git a/wcfsetup/install/files/lib/system/version/AbstractVersionTrackerProvider.class.php b/wcfsetup/install/files/lib/system/version/AbstractVersionTrackerProvider.class.php
index ee48ed692c..93fb3e3536 100644
--- a/wcfsetup/install/files/lib/system/version/AbstractVersionTrackerProvider.class.php
+++ b/wcfsetup/install/files/lib/system/version/AbstractVersionTrackerProvider.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\version;
 use wcf\data\object\type\AbstractObjectTypeProvider;
 use wcf\data\IVersionTrackerObject;
diff --git a/wcfsetup/install/files/lib/system/version/ArticleVersionTrackerProvider.class.php b/wcfsetup/install/files/lib/system/version/ArticleVersionTrackerProvider.class.php
index 23d21d0bcb..ece186e054 100644
--- a/wcfsetup/install/files/lib/system/version/ArticleVersionTrackerProvider.class.php
+++ b/wcfsetup/install/files/lib/system/version/ArticleVersionTrackerProvider.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\version;
 use wcf\data\article\Article;
 use wcf\data\article\ArticleAction;
diff --git a/wcfsetup/install/files/lib/system/version/BoxVersionTrackerProvider.class.php b/wcfsetup/install/files/lib/system/version/BoxVersionTrackerProvider.class.php
index 48aeba3571..1695f05448 100644
--- a/wcfsetup/install/files/lib/system/version/BoxVersionTrackerProvider.class.php
+++ b/wcfsetup/install/files/lib/system/version/BoxVersionTrackerProvider.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\version;
 use wcf\data\box\Box;
 use wcf\data\box\BoxAction;
diff --git a/wcfsetup/install/files/lib/system/version/IVersionTrackerProvider.class.php b/wcfsetup/install/files/lib/system/version/IVersionTrackerProvider.class.php
index b55ad36101..717e0783de 100644
--- a/wcfsetup/install/files/lib/system/version/IVersionTrackerProvider.class.php
+++ b/wcfsetup/install/files/lib/system/version/IVersionTrackerProvider.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\version;
 use wcf\data\object\type\IObjectTypeProvider;
 use wcf\data\IVersionTrackerObject;
diff --git a/wcfsetup/install/files/lib/system/version/PageVersionTrackerProvider.class.php b/wcfsetup/install/files/lib/system/version/PageVersionTrackerProvider.class.php
index 51fa401b0b..09860df511 100644
--- a/wcfsetup/install/files/lib/system/version/PageVersionTrackerProvider.class.php
+++ b/wcfsetup/install/files/lib/system/version/PageVersionTrackerProvider.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\version;
 use wcf\data\page\Page;
 use wcf\data\page\PageAction;
diff --git a/wcfsetup/install/files/lib/system/version/VersionTracker.class.php b/wcfsetup/install/files/lib/system/version/VersionTracker.class.php
index 50308b947e..516cbe97bb 100644
--- a/wcfsetup/install/files/lib/system/version/VersionTracker.class.php
+++ b/wcfsetup/install/files/lib/system/version/VersionTracker.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\version;
 use wcf\data\object\type\ObjectType;
 use wcf\data\object\type\ObjectTypeCache;
diff --git a/wcfsetup/install/files/lib/system/version/VersionTrackerEntry.class.php b/wcfsetup/install/files/lib/system/version/VersionTrackerEntry.class.php
index 6fae1b5b76..c23123d8ad 100644
--- a/wcfsetup/install/files/lib/system/version/VersionTrackerEntry.class.php
+++ b/wcfsetup/install/files/lib/system/version/VersionTrackerEntry.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\version;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/visitTracker/VisitTracker.class.php b/wcfsetup/install/files/lib/system/visitTracker/VisitTracker.class.php
index cd029d5334..5da1ca0961 100644
--- a/wcfsetup/install/files/lib/system/visitTracker/VisitTracker.class.php
+++ b/wcfsetup/install/files/lib/system/visitTracker/VisitTracker.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\visitTracker;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\system\exception\SystemException;
diff --git a/wcfsetup/install/files/lib/system/worker/AbstractRebuildDataWorker.class.php b/wcfsetup/install/files/lib/system/worker/AbstractRebuildDataWorker.class.php
index 7bcf99a6af..c1de85d0b6 100644
--- a/wcfsetup/install/files/lib/system/worker/AbstractRebuildDataWorker.class.php
+++ b/wcfsetup/install/files/lib/system/worker/AbstractRebuildDataWorker.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\worker;
 use wcf\data\user\group\UserGroup;
 use wcf\data\DatabaseObjectList;
diff --git a/wcfsetup/install/files/lib/system/worker/AbstractWorker.class.php b/wcfsetup/install/files/lib/system/worker/AbstractWorker.class.php
index dcee175113..b4a0c378eb 100644
--- a/wcfsetup/install/files/lib/system/worker/AbstractWorker.class.php
+++ b/wcfsetup/install/files/lib/system/worker/AbstractWorker.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\worker;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/worker/ArticleRebuildDataWorker.class.php b/wcfsetup/install/files/lib/system/worker/ArticleRebuildDataWorker.class.php
index 22fc5051cf..76eaf2d531 100644
--- a/wcfsetup/install/files/lib/system/worker/ArticleRebuildDataWorker.class.php
+++ b/wcfsetup/install/files/lib/system/worker/ArticleRebuildDataWorker.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\worker;
 use wcf\data\article\content\ArticleContentEditor;
 use wcf\data\article\content\ArticleContentList;
diff --git a/wcfsetup/install/files/lib/system/worker/AttachmentRebuildDataWorker.class.php b/wcfsetup/install/files/lib/system/worker/AttachmentRebuildDataWorker.class.php
index 4cd08b4d20..9a0528a4d4 100644
--- a/wcfsetup/install/files/lib/system/worker/AttachmentRebuildDataWorker.class.php
+++ b/wcfsetup/install/files/lib/system/worker/AttachmentRebuildDataWorker.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\worker;
 use wcf\data\attachment\AttachmentAction;
 use wcf\data\attachment\AttachmentList;
diff --git a/wcfsetup/install/files/lib/system/worker/CommentRebuildDataWorker.class.php b/wcfsetup/install/files/lib/system/worker/CommentRebuildDataWorker.class.php
index 64374edded..b6b0283f69 100644
--- a/wcfsetup/install/files/lib/system/worker/CommentRebuildDataWorker.class.php
+++ b/wcfsetup/install/files/lib/system/worker/CommentRebuildDataWorker.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\worker;
 use wcf\data\comment\Comment;
 use wcf\data\comment\CommentEditor;
diff --git a/wcfsetup/install/files/lib/system/worker/CommentResponseRebuildDataWorker.class.php b/wcfsetup/install/files/lib/system/worker/CommentResponseRebuildDataWorker.class.php
index 7e1945259c..ee5541c8b9 100644
--- a/wcfsetup/install/files/lib/system/worker/CommentResponseRebuildDataWorker.class.php
+++ b/wcfsetup/install/files/lib/system/worker/CommentResponseRebuildDataWorker.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\worker;
 use wcf\data\comment\response\CommentResponse;
 use wcf\data\comment\response\CommentResponseEditor;
diff --git a/wcfsetup/install/files/lib/system/worker/DatabaseConvertEncodingWorker.class.php b/wcfsetup/install/files/lib/system/worker/DatabaseConvertEncodingWorker.class.php
index ef1c77137c..e9a70e40b8 100644
--- a/wcfsetup/install/files/lib/system/worker/DatabaseConvertEncodingWorker.class.php
+++ b/wcfsetup/install/files/lib/system/worker/DatabaseConvertEncodingWorker.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\worker;
 use wcf\system\request\LinkHandler;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/system/worker/IRebuildDataWorker.class.php b/wcfsetup/install/files/lib/system/worker/IRebuildDataWorker.class.php
index eeb3d6e96e..297747bdd3 100644
--- a/wcfsetup/install/files/lib/system/worker/IRebuildDataWorker.class.php
+++ b/wcfsetup/install/files/lib/system/worker/IRebuildDataWorker.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\worker;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/worker/IWorker.class.php b/wcfsetup/install/files/lib/system/worker/IWorker.class.php
index 1a17bc5f96..412895ec3b 100644
--- a/wcfsetup/install/files/lib/system/worker/IWorker.class.php
+++ b/wcfsetup/install/files/lib/system/worker/IWorker.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\worker;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/worker/ImportWorker.class.php b/wcfsetup/install/files/lib/system/worker/ImportWorker.class.php
index 0b875158d8..0af5d9aef8 100644
--- a/wcfsetup/install/files/lib/system/worker/ImportWorker.class.php
+++ b/wcfsetup/install/files/lib/system/worker/ImportWorker.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\worker;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\system\exception\SystemException;
diff --git a/wcfsetup/install/files/lib/system/worker/LikeRebuildDataWorker.class.php b/wcfsetup/install/files/lib/system/worker/LikeRebuildDataWorker.class.php
index 9e11cca96d..630a51fa2e 100644
--- a/wcfsetup/install/files/lib/system/worker/LikeRebuildDataWorker.class.php
+++ b/wcfsetup/install/files/lib/system/worker/LikeRebuildDataWorker.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\worker;
 use wcf\data\like\Like;
 use wcf\data\like\LikeList;
diff --git a/wcfsetup/install/files/lib/system/worker/LikeUserRebuildDataWorker.class.php b/wcfsetup/install/files/lib/system/worker/LikeUserRebuildDataWorker.class.php
index 6bc6c9fb42..4b1b6a9df6 100644
--- a/wcfsetup/install/files/lib/system/worker/LikeUserRebuildDataWorker.class.php
+++ b/wcfsetup/install/files/lib/system/worker/LikeUserRebuildDataWorker.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\worker;
 use wcf\data\like\object\LikeObjectList;
 use wcf\data\like\Like;
diff --git a/wcfsetup/install/files/lib/system/worker/MailWorker.class.php b/wcfsetup/install/files/lib/system/worker/MailWorker.class.php
index 3ffbf21d00..46ec1b83c2 100644
--- a/wcfsetup/install/files/lib/system/worker/MailWorker.class.php
+++ b/wcfsetup/install/files/lib/system/worker/MailWorker.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\worker;
 use wcf\data\user\User;
 use wcf\system\background\BackgroundQueueHandler;
diff --git a/wcfsetup/install/files/lib/system/worker/MediaRebuildDataWorker.class.php b/wcfsetup/install/files/lib/system/worker/MediaRebuildDataWorker.class.php
index 41d013ac54..6d179e6052 100644
--- a/wcfsetup/install/files/lib/system/worker/MediaRebuildDataWorker.class.php
+++ b/wcfsetup/install/files/lib/system/worker/MediaRebuildDataWorker.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\worker;
 use wcf\data\media\MediaAction;
 use wcf\data\media\MediaList;
diff --git a/wcfsetup/install/files/lib/system/worker/PageRebuildDataWorker.class.php b/wcfsetup/install/files/lib/system/worker/PageRebuildDataWorker.class.php
index 1182d0dfc1..0d0adac681 100644
--- a/wcfsetup/install/files/lib/system/worker/PageRebuildDataWorker.class.php
+++ b/wcfsetup/install/files/lib/system/worker/PageRebuildDataWorker.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\worker;
 use wcf\data\page\content\PageContentEditor;
 use wcf\data\page\content\PageContentList;
diff --git a/wcfsetup/install/files/lib/system/worker/PollRebuildDataWorker.class.php b/wcfsetup/install/files/lib/system/worker/PollRebuildDataWorker.class.php
index c0726a133a..8ccd11d3c4 100644
--- a/wcfsetup/install/files/lib/system/worker/PollRebuildDataWorker.class.php
+++ b/wcfsetup/install/files/lib/system/worker/PollRebuildDataWorker.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\worker;
 use wcf\data\poll\PollList;
 use wcf\system\database\util\PreparedStatementConditionBuilder;
diff --git a/wcfsetup/install/files/lib/system/worker/SendNewPasswordWorker.class.php b/wcfsetup/install/files/lib/system/worker/SendNewPasswordWorker.class.php
index 33723f1abb..6fa40562ad 100644
--- a/wcfsetup/install/files/lib/system/worker/SendNewPasswordWorker.class.php
+++ b/wcfsetup/install/files/lib/system/worker/SendNewPasswordWorker.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\worker;
 use wcf\data\user\User;
 use wcf\data\user\UserAction;
diff --git a/wcfsetup/install/files/lib/system/worker/SitemapRebuildWorker.class.php b/wcfsetup/install/files/lib/system/worker/SitemapRebuildWorker.class.php
index 01b28ef1eb..c589e42b01 100755
--- a/wcfsetup/install/files/lib/system/worker/SitemapRebuildWorker.class.php
+++ b/wcfsetup/install/files/lib/system/worker/SitemapRebuildWorker.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\worker;
 use wcf\data\object\type\ObjectType;
 use wcf\data\object\type\ObjectTypeCache;
diff --git a/wcfsetup/install/files/lib/system/worker/StatDailyRebuildDataWorker.class.php b/wcfsetup/install/files/lib/system/worker/StatDailyRebuildDataWorker.class.php
index ca83fdd55f..2e290e48d7 100644
--- a/wcfsetup/install/files/lib/system/worker/StatDailyRebuildDataWorker.class.php
+++ b/wcfsetup/install/files/lib/system/worker/StatDailyRebuildDataWorker.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\worker;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\system\event\EventHandler;
diff --git a/wcfsetup/install/files/lib/system/worker/UserActivityPointUpdateEventsWorker.class.php b/wcfsetup/install/files/lib/system/worker/UserActivityPointUpdateEventsWorker.class.php
index 141a22e72d..902fb328fa 100644
--- a/wcfsetup/install/files/lib/system/worker/UserActivityPointUpdateEventsWorker.class.php
+++ b/wcfsetup/install/files/lib/system/worker/UserActivityPointUpdateEventsWorker.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\worker;
 use wcf\data\object\type\ObjectType;
 use wcf\data\object\type\ObjectTypeCache;
diff --git a/wcfsetup/install/files/lib/system/worker/UserRebuildDataWorker.class.php b/wcfsetup/install/files/lib/system/worker/UserRebuildDataWorker.class.php
index 74ee8fa333..4c8f58066b 100644
--- a/wcfsetup/install/files/lib/system/worker/UserRebuildDataWorker.class.php
+++ b/wcfsetup/install/files/lib/system/worker/UserRebuildDataWorker.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\system\worker;
 use wcf\data\like\Like;
 use wcf\data\user\avatar\UserAvatar;
diff --git a/wcfsetup/install/files/lib/util/ArrayUtil.class.php b/wcfsetup/install/files/lib/util/ArrayUtil.class.php
index 79e07001c1..c6fe93967f 100644
--- a/wcfsetup/install/files/lib/util/ArrayUtil.class.php
+++ b/wcfsetup/install/files/lib/util/ArrayUtil.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\util;
 use wcf\system\exception\SystemException;
 
diff --git a/wcfsetup/install/files/lib/util/CLIUtil.class.php b/wcfsetup/install/files/lib/util/CLIUtil.class.php
index dee0f722c2..2716840266 100644
--- a/wcfsetup/install/files/lib/util/CLIUtil.class.php
+++ b/wcfsetup/install/files/lib/util/CLIUtil.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\util;
 use phpline\internal\AnsiUtil;
 use wcf\system\CLIWCF;
diff --git a/wcfsetup/install/files/lib/util/ClassUtil.class.php b/wcfsetup/install/files/lib/util/ClassUtil.class.php
index c0f21f76da..550af86e26 100644
--- a/wcfsetup/install/files/lib/util/ClassUtil.class.php
+++ b/wcfsetup/install/files/lib/util/ClassUtil.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\util;
 use wcf\system\exception\SystemException;
 
diff --git a/wcfsetup/install/files/lib/util/CronjobUtil.class.php b/wcfsetup/install/files/lib/util/CronjobUtil.class.php
index d1b246e6aa..b364cf0613 100644
--- a/wcfsetup/install/files/lib/util/CronjobUtil.class.php
+++ b/wcfsetup/install/files/lib/util/CronjobUtil.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\util;
 use wcf\system\exception\SystemException;
 
diff --git a/wcfsetup/install/files/lib/util/CryptoUtil.class.php b/wcfsetup/install/files/lib/util/CryptoUtil.class.php
index 786f80e272..5d66edcee6 100644
--- a/wcfsetup/install/files/lib/util/CryptoUtil.class.php
+++ b/wcfsetup/install/files/lib/util/CryptoUtil.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\util;
 use wcf\util\exception\CryptoException;
 
diff --git a/wcfsetup/install/files/lib/util/DOMUtil.class.php b/wcfsetup/install/files/lib/util/DOMUtil.class.php
index b70f965fd6..1187eac71e 100644
--- a/wcfsetup/install/files/lib/util/DOMUtil.class.php
+++ b/wcfsetup/install/files/lib/util/DOMUtil.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\util;
 use wcf\system\exception\SystemException;
 
diff --git a/wcfsetup/install/files/lib/util/DateUtil.class.php b/wcfsetup/install/files/lib/util/DateUtil.class.php
index 8d0bae8f1d..d40ae7bf73 100644
--- a/wcfsetup/install/files/lib/util/DateUtil.class.php
+++ b/wcfsetup/install/files/lib/util/DateUtil.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\util;
 use wcf\data\language\Language;
 use wcf\data\user\User;
diff --git a/wcfsetup/install/files/lib/util/Diff.class.php b/wcfsetup/install/files/lib/util/Diff.class.php
index ba106f6323..fcb715362f 100644
--- a/wcfsetup/install/files/lib/util/Diff.class.php
+++ b/wcfsetup/install/files/lib/util/Diff.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\util;
 
 /**
diff --git a/wcfsetup/install/files/lib/util/DirectoryUtil.class.php b/wcfsetup/install/files/lib/util/DirectoryUtil.class.php
index 080b8985dd..7364c316e7 100644
--- a/wcfsetup/install/files/lib/util/DirectoryUtil.class.php
+++ b/wcfsetup/install/files/lib/util/DirectoryUtil.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\util;
 use wcf\system\exception\SystemException;
 use wcf\system\Regex;
diff --git a/wcfsetup/install/files/lib/util/ExifUtil.class.php b/wcfsetup/install/files/lib/util/ExifUtil.class.php
index f61495643e..0e74f63832 100644
--- a/wcfsetup/install/files/lib/util/ExifUtil.class.php
+++ b/wcfsetup/install/files/lib/util/ExifUtil.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\util;
 
 /**
diff --git a/wcfsetup/install/files/lib/util/FileReader.class.php b/wcfsetup/install/files/lib/util/FileReader.class.php
index 168ca57efe..cfe228825f 100644
--- a/wcfsetup/install/files/lib/util/FileReader.class.php
+++ b/wcfsetup/install/files/lib/util/FileReader.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\util;
 use wcf\system\exception\SystemException;
 use wcf\system\io\File;
diff --git a/wcfsetup/install/files/lib/util/FileUtil.class.php b/wcfsetup/install/files/lib/util/FileUtil.class.php
index 345084a9ea..7df400aa65 100644
--- a/wcfsetup/install/files/lib/util/FileUtil.class.php
+++ b/wcfsetup/install/files/lib/util/FileUtil.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\util;
 use wcf\system\exception\SystemException;
 use wcf\system\io\File;
diff --git a/wcfsetup/install/files/lib/util/HTTPRequest.class.php b/wcfsetup/install/files/lib/util/HTTPRequest.class.php
index d0dcdbf915..575a392bf3 100644
--- a/wcfsetup/install/files/lib/util/HTTPRequest.class.php
+++ b/wcfsetup/install/files/lib/util/HTTPRequest.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\util;
 use wcf\system\exception\HTTPNotFoundException;
 use wcf\system\exception\HTTPServerErrorException;
diff --git a/wcfsetup/install/files/lib/util/HeaderUtil.class.php b/wcfsetup/install/files/lib/util/HeaderUtil.class.php
index f8024d733e..2af713ffdc 100644
--- a/wcfsetup/install/files/lib/util/HeaderUtil.class.php
+++ b/wcfsetup/install/files/lib/util/HeaderUtil.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\util;
 use wcf\system\application\ApplicationHandler;
 use wcf\system\event\EventHandler;
diff --git a/wcfsetup/install/files/lib/util/ImageUtil.class.php b/wcfsetup/install/files/lib/util/ImageUtil.class.php
index edba0a88be..9be2cbd134 100644
--- a/wcfsetup/install/files/lib/util/ImageUtil.class.php
+++ b/wcfsetup/install/files/lib/util/ImageUtil.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\util;
 
 /**
diff --git a/wcfsetup/install/files/lib/util/JSON.class.php b/wcfsetup/install/files/lib/util/JSON.class.php
index 55db8a4e82..7893f8fec3 100644
--- a/wcfsetup/install/files/lib/util/JSON.class.php
+++ b/wcfsetup/install/files/lib/util/JSON.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\util;
 use wcf\system\exception\SystemException;
 
diff --git a/wcfsetup/install/files/lib/util/MathUtil.class.php b/wcfsetup/install/files/lib/util/MathUtil.class.php
index b1a9a973ab..381014c3da 100644
--- a/wcfsetup/install/files/lib/util/MathUtil.class.php
+++ b/wcfsetup/install/files/lib/util/MathUtil.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\util;
 
 /**
diff --git a/wcfsetup/install/files/lib/util/MessageUtil.class.php b/wcfsetup/install/files/lib/util/MessageUtil.class.php
index 4c2e22bb94..589c066993 100644
--- a/wcfsetup/install/files/lib/util/MessageUtil.class.php
+++ b/wcfsetup/install/files/lib/util/MessageUtil.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\util;
 use wcf\system\application\ApplicationHandler;
 use wcf\system\html\input\HtmlInputProcessor;
diff --git a/wcfsetup/install/files/lib/util/OptionUtil.class.php b/wcfsetup/install/files/lib/util/OptionUtil.class.php
index 8cc0851bdb..96d2b3a1d5 100644
--- a/wcfsetup/install/files/lib/util/OptionUtil.class.php
+++ b/wcfsetup/install/files/lib/util/OptionUtil.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\util;
 
 /**
diff --git a/wcfsetup/install/files/lib/util/PasswordUtil.class.php b/wcfsetup/install/files/lib/util/PasswordUtil.class.php
index f1dc3b2435..0ecfc24da1 100644
--- a/wcfsetup/install/files/lib/util/PasswordUtil.class.php
+++ b/wcfsetup/install/files/lib/util/PasswordUtil.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\util;
 use wcf\system\exception\SystemException;
 use wcf\system\Regex;
diff --git a/wcfsetup/install/files/lib/util/StringStack.class.php b/wcfsetup/install/files/lib/util/StringStack.class.php
index 0234e2eaf6..541906829d 100644
--- a/wcfsetup/install/files/lib/util/StringStack.class.php
+++ b/wcfsetup/install/files/lib/util/StringStack.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\util;
 
 /**
diff --git a/wcfsetup/install/files/lib/util/StringUtil.class.php b/wcfsetup/install/files/lib/util/StringUtil.class.php
index 40bf50687b..eb812ee62c 100644
--- a/wcfsetup/install/files/lib/util/StringUtil.class.php
+++ b/wcfsetup/install/files/lib/util/StringUtil.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\util;
 use wcf\system\application\ApplicationHandler;
 use wcf\system\request\RouteHandler;
diff --git a/wcfsetup/install/files/lib/util/StyleUtil.class.php b/wcfsetup/install/files/lib/util/StyleUtil.class.php
index 1e9c6fd872..55a46e3bd8 100644
--- a/wcfsetup/install/files/lib/util/StyleUtil.class.php
+++ b/wcfsetup/install/files/lib/util/StyleUtil.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\util;
 use wcf\system\style\StyleCompiler;
 
diff --git a/wcfsetup/install/files/lib/util/Url.class.php b/wcfsetup/install/files/lib/util/Url.class.php
index bde739b797..107607f710 100644
--- a/wcfsetup/install/files/lib/util/Url.class.php
+++ b/wcfsetup/install/files/lib/util/Url.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\util;
 
 /**
diff --git a/wcfsetup/install/files/lib/util/UserRegistrationUtil.class.php b/wcfsetup/install/files/lib/util/UserRegistrationUtil.class.php
index f8db9ce924..3c9556cc84 100644
--- a/wcfsetup/install/files/lib/util/UserRegistrationUtil.class.php
+++ b/wcfsetup/install/files/lib/util/UserRegistrationUtil.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\util;
 
 /**
diff --git a/wcfsetup/install/files/lib/util/UserUtil.class.php b/wcfsetup/install/files/lib/util/UserUtil.class.php
index ba1aab4052..8e4b34c6e6 100644
--- a/wcfsetup/install/files/lib/util/UserUtil.class.php
+++ b/wcfsetup/install/files/lib/util/UserUtil.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\util;
 use wcf\system\WCF;
 
diff --git a/wcfsetup/install/files/lib/util/XML.class.php b/wcfsetup/install/files/lib/util/XML.class.php
index b65ca54478..59091f7a40 100644
--- a/wcfsetup/install/files/lib/util/XML.class.php
+++ b/wcfsetup/install/files/lib/util/XML.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\util;
 use wcf\system\exception\SystemException;
 
diff --git a/wcfsetup/install/files/lib/util/XMLWriter.class.php b/wcfsetup/install/files/lib/util/XMLWriter.class.php
index 70388b03f0..f9b060b13d 100644
--- a/wcfsetup/install/files/lib/util/XMLWriter.class.php
+++ b/wcfsetup/install/files/lib/util/XMLWriter.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\util;
 use wcf\system\exception\SystemException;
 
diff --git a/wcfsetup/install/files/lib/util/exception/CryptoException.class.php b/wcfsetup/install/files/lib/util/exception/CryptoException.class.php
index 42d09d9b0a..281e524f9f 100644
--- a/wcfsetup/install/files/lib/util/exception/CryptoException.class.php
+++ b/wcfsetup/install/files/lib/util/exception/CryptoException.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\util\exception;
 
 /**
diff --git a/wcfsetup/install/files/lib/util/exception/HTTPException.class.php b/wcfsetup/install/files/lib/util/exception/HTTPException.class.php
index e67fbf57d0..b99b3edd9e 100644
--- a/wcfsetup/install/files/lib/util/exception/HTTPException.class.php
+++ b/wcfsetup/install/files/lib/util/exception/HTTPException.class.php
@@ -1,5 +1,4 @@
 <?php
-declare(strict_types=1);
 namespace wcf\util\exception;
 use wcf\system\exception\IExtraInformationException;
 use wcf\system\exception\SystemException;