These files were deleted in the repository so that they are not part of releases after that point in time. In older installations that were updated, these obsolete files might still exist, however.
--- /dev/null
+<?xml version="1.0" encoding="UTF-8"?>
+<data xmlns="http://www.woltlab.com" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.woltlab.com http://www.woltlab.com/XSD/2019/acpTemplateDelete.xsd">
+ <delete>
+ <template>__userGroupAddCanBeAddedAsParticipant</template>
+ </delete>
+</data>
--- /dev/null
+<?xml version="1.0" encoding="UTF-8"?>
+<data xmlns="http://www.woltlab.com" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.woltlab.com http://www.woltlab.com/XSD/2019/fileDelete.xsd">
+ <delete>
+ <file>acp/update_com.woltlab.wcf.conversation_3.0_dropColumns.php</file>
+ <file>acp/update_com.woltlab.wcf.conversation_3.1_addColumn.php</file>
+ <file>acp/update_com.woltlab.wcf.conversation_5.2.php</file>
+ <file>js/require.build.min.js</file>
+ <file>lib/form/ConversationMessageAddForm.class.php</file>
+ <file>lib/form/ConversationMessageEditForm.class.php</file>
+ <file>lib/page/ConversationLogPage.class.php</file>
+ <file>lib/system/user/online/location/ConversationLocation.class.php</file>
+ </delete>
+</data>
--- /dev/null
+<?xml version="1.0" encoding="UTF-8"?>
+<data xmlns="http://www.woltlab.com" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.woltlab.com http://www.woltlab.com/XSD/2019/templateDelete.xsd">
+ <delete>
+ <template>__userStartConversation</template>
+ <template>conversationListUnread</template>
+ <template>conversationLog</template>
+ <template>conversationMessageAdd</template>
+ <template>conversationMessageEdit</template>
+ <template>searchResultConversationMessage</template>
+ </delete>
+</data>