* IPv6 addresses in X-Forwarded-For headers are now normalised before checking
against allowed proxy lists.
* Add deferrable update support for callback/closure
+* Add TitleMove hook before page renames
+* Revision deletion backend code is moved out of SpecialRevisiondelete
=== Bug fixes in 1.22 ===
* Disable Special:PasswordReset when $wgEnableEmail is false. Previously one