diff --git a/UPGRADING b/UPGRADING
index 48fe0f8e9b6..7488912c888 100644
--- a/UPGRADING
+++ b/UPGRADING
@@ -246,9 +246,11 @@ PHP 8.5 UPGRADE NOTES
 
 - Core:
   . get_error_handler() allows retrieving the current user-defined error handler
-    function
+    function.
+    RFC: https://wiki.php.net/rfc/get-error-exception-handler
   . get_exception_handler() allows retrieving the current user-defined exception
-    handler function
+    handler function.
+    RFC: https://wiki.php.net/rfc/get-error-exception-handler
 
 - Curl:
   . curl_multi_get_handles() allows retrieving all CurlHandles current