* The archive table's ar_rev_id field is now unique.
* Special:BotPasswords now requires reauthentication.
* (T194414) The default watchlist view time has been increased from 3 to 7 days.
+* The right to edit sitewide Javascript (e.g. MediaWiki:Common.js), CSS or JSON
+ was separated from 'editinterface' and is available under
+ 'editsitejs'/'editsitecss'/'editsitejson'. Having 'editinterface' is still
+ necessary to edit such pages.
+* A new user group, 'interface-admin', is added for controlling access to
+ sitewide CSS/JS (and editing other users' CSS/JS). No other group has
+ 'editsitecss', 'editusercss', 'editsitejs' or 'edituserjs' by default.
+* A new grant group, 'editsiteconfig', is added for granting the above rights.
=== New features in 1.32 ===
* (T112474) Generalized the ResourceLoader mechanism for overriding modules