+ this will still be overridden with the debug URL parameter a la
+ $wgLanguageCode.
+* $wgResourceLoaderInlinePrivateModules was added to specify whether private
+ modules such as user.options should be embedded in the HTML output or
+ delivered through a resource loader request, which bypasses server cache (like
+ squid) and checks the user parameter against $wgUser. The former adds more
+ data to all pages, while the latter adds a request which cannot be cached
+ server side.
+* Removed $wgUpdates for database updates; extension should use
+ DatabaseUpdater::addExtensionUpdate().
+* Removed $wgServerName. It doesn't need to be set anymore and is no longer
+ available as input for other configuration items, either.
+* Remove $wgRemoteUploads. It was not well supported and superseded by
+ $wgUploadNavigationUrl.
+* $wgUpgradeKey allows unlocking the web installer for upgrades without having
+ to move LocalSettings.php
+* The FailFunction "error handling" method has now been removed
+* $wgAdditionalMailParams added to allow setting extra options to mail() calls.
+* $wgSecureLogin & $wgSecureLoginStickHTTPS to optionaly login using HTTPS