weakrefs upgrading note

diff --git a/UPGRADING b/UPGRADING
index ded81d175bc911d46444d57c2be4c2049769c422..0152527217621f202ab18b0ca94f84f7d50d02be 100644 (file)
--- a/UPGRADING
+++ b/UPGRADING
@@ -112,6 +112,9 @@ PHP 7.4 UPGRADE NOTES
 
     RFC: https://wiki.php.net/rfc/null_coalesce_equal_operator
 
+  . Support for WeakReferences has been added.
+    RFC: https://wiki.php.net/rfc/weakrefs
+
 - FFI:
   . A new extension which provides a simple way to call native functions, access
     native variables and create/access data structures defined in C libraries.