+* rebuildLocalisationCache learned --lang option. Let you rebuild l10n caches
+ of the specified languages instead of all of them.
+* New GetNewMessagesAlert hook allowing extensions to disable or modify the new
+ messages alert
+* New wgUserNewMsgRevisionId JS global for logged in users. This will be null
+ if the user has no new talk page messages. Otherwise it will be set to the
+ revision ID of the oldest new talk page message. This will allow gadgets and
+ extensions to create their own new message alerts on the client side.
+* mediawiki.log: Added log.warn wrapper (uses console.warn and console.trace).
+* mediawiki.log: Implemented log.deprecate. This method defines a property and
+ uses ES5 getter/setter to emit a warning when they are used.