Copyright/en

MediaWiki is free software; you can redistribute it and/or modify it under the terms of the [//www.gnu.org/licenses/old-licenses/gpl-2.0.html GNU General Public License] as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

Copyright 2001 - $year. A list of authors can be found.

Extensions and skins may be released under different licenses than MediaWiki itself. Most of them are usually distributed with a copy of their respective licenses and copyright notices.