Upgrading MediaWiki

To upgrade a MediaWiki, follow the guidelines at: http://www.mediawiki.org/wiki/Manual:Upgrading

The only tricky part is:
 * Backup MediaWiki's program files, including all skins and extensions, especially if you modified them.

For this wiki, the following directories need to be copied:
 * LocalSettings.php
 * images/
 * extensions/
 * skins/memory/
 * .htaccess

After you are done, delete the directory:
 * mw-config/