it from source control: http://www.mediawiki.org/wiki/Download_from_SVN
=== Configuration changes in 1.16 ===
+
* (bug 18222) $wgMinimalPasswordLength default is now 1
* $wgSessionHandler can be used to configure session.save_handler
* $wgLocalFileRepo/$wgForeignFileRepos now have a 'fileMode' parameter to