Document the requirement for the `intl` extension

see WoltLab/WCF#5051

diff --git a/docs/migration/wsc55/libraries.md b/docs/migration/wsc55/libraries.md
index 59177cbad38f347cfb4437b7a9ab41ebcdcdf136..1611e92b1da5abdaa81805671c833a3c7c15ec6e 100644 (file)
--- a/docs/migration/wsc55/libraries.md
+++ b/docs/migration/wsc55/libraries.md
@@ -9,9 +9,8 @@ Refer to the documentation within the [symfony/polyfill](https://github.com/symf
 
 ## IDNA Handling
 
-The true/punycode and pear/net_idna2 dependencies were removed, because of a lack of upstream maintenance.
+The true/punycode and pear/net_idna2 dependencies were removed, because of a lack of upstream maintenance and because the `intl` extension is now required.
 Instead the [`idn_to_ascii`](https://www.php.net/manual/en/function.idn-to-ascii.php) function should be used.
-A polyfill for environments without the intl extension is provided.
 
 ## Laminas Diactoros
 

diff --git a/docs/migration/wsc55/php.md b/docs/migration/wsc55/php.md
index b9ec97f304adb404833f485c8b1955ec140762c1..210619fec3cb494ef8b98a1b155fd986979afaea 100644 (file)
--- a/docs/migration/wsc55/php.md
+++ b/docs/migration/wsc55/php.md
@@ -4,7 +4,7 @@
 
 The minimum requirements have been increased to the following:
 
-- **PHP:** 8.1.2 (64 bit only)
+- **PHP:** 8.1.2 (64 bit only); `intl` extension
 - **MySQL:** 8.0.29
 - **MariaDB:** 10.5.12