upgrading

Author: DanielEScherzer

UPGRADING

@@ -260,8 +260,9 @@ PHP 8.5 UPGRADE NOTES
 
 - Core:
   . Returning a non-string from a user output handler is deprecated. The
-    deprecation warning will bypass user output handlers to ensure it is
-    visible.
+    deprecation warning will bypass the handler with the bad return to ensure
+    it is visible; if there are nested output handlers the next one will still
+    be used.
     RFC: https://wiki.php.net/rfc/deprecations_php_8_4
 
 - Hash: