* $wgStyleSheetDirectory is no longer an alias for $wgStyleDirectory;
* Special:Movepage can now take paramaters like Special:Movepage/Page_to_move
(used to just be able to take paramaters via a GET request like index.php?title=Special:Movepage&target=Page_to_move)
+* Deprecated the {{msg:template}} syntax for referring to templates
* ...and more!