-These developers hold the copyright to this work, and it is
-licensed under the terms of the GNU General Public License,
-version 2 (see http://www.fsf.org/licenses/gpl.html). Derivative
-works and later versions of the code will also be considered
-free software licensed under the same terms.
+The contributors hold the copyright to this work, and it is licensed
+under the terms of the GNU General Public License, version 2 or later[1]
+(see http://www.fsf.org/licenses/gpl.html). Derivative works and later
+versions of the code must be free software licensed under the same
+terms. This includes "extensions" that use MediaWiki functions or
+variables; see http://www.gnu.org/licenses/gpl-faq.html#GPLAndPlugins
+for details.
+
+The Wikimedia Foundation currently has no legal rights to the software.
+
+[1] Sections of code written exclusively by Lee Crocker or Erik Moeller are
+also released into the public domain, which does not impair the obligations of
+users under the GPL for use of the whole code or other sections thereof.
+
+[2] MediaWiki makes use of the Sajax Toolkit by modernmethod,
+ http://www.modernmethod.com/sajax/
+ which has the following license:
+
+ 'This work is licensed under the Creative Commons Attribution
+ License. To view a copy of this license, visit
+ http://creativecommons.org/licenses/by/2.0/ or send a letter
+ to Creative Commons, 559 Nathan Abbott Way,
+ Stanford, California 94305, USA.'
+
+Many thanks to the Wikimedia regulars for testing and suggestions.
+
+The official website for mediawiki is located at: