Update ChangeLog

Author: sebastianbergmann

ChangeLog-12.5.md

@@ -7,6 +7,7 @@ All notable changes of the PHPUnit 12.5 release series are documented in this fi
 ### Fixed
 
 * [#6590](https://github.com/sebastianbergmann/phpunit/issues/6590): Silent failure when configuration file is invalid
+* [#6592](https://github.com/sebastianbergmann/phpunit/pull/6592): INI metacharacters `;` and `"` are not preserved when forwarding settings to child processes
 
 ## [12.5.21] - 2026-04-16