Bugzilla
An installation of Mozilla's bug tracking software, Bugzilla, has been set up at http://bugzilla.wikimedia.org in order to track MediaWiki bugs and feature requests. We refer to it as "MediaZilla". Please only use MediaZilla for bug reports and feature requests, unless you want them to be ignored.
See Bugzilla patches for a list of changes which have been made to customize Bugzilla to our needs.