Extension:UpdateMediaWiki

The UpdateMediaWiki extension allows administrators and authorized users upgrade from a special page MediaWiki.

User rights
Once you installed the extension, you'll have to set up the user rights in LocalSettings.php. For example, the following sample configuration would allow sysops to do everything they want with UpdateMediaWiki:

Usage
To update from this extension, go to "Special:Updatemediawiki". Permission "updatecore" is required to do so.