=== Other changes in 1.22 ===
* redirect.php was removed. It was unused.
+* ClickTracking integration was dropped from the mediaWiki.user.bucket
+ JavaScript function. The 'tracked' option is now ignored.
+* BREAKING CHANGE: Legacy skins Simple, MySkin and Standard were all removed.
+ Nostalgia was moved to an extension.
+* Event namespace used by jquery.makeCollapsible has been changed from
+ 'mw-collapse' to 'mw-collapsible' for consistency with the module name.
+* BREAKING CHANGE: The "ExternalAuth" authentication subsystem was removed, along
+ with its associated globals of $wgExternalAuthType, $wgExternalAuthConf,
+ $wgAutocreatePolicy and $wgAllowPrefChange. Affected users are encouraged to
+ use AuthPlugin for external authentication/authorization needs.
== Compatibility ==