We're hoping to upgrade Moodle Docs to the latest version of MediaWiki soon, once we've thoroughly tested all our custom hacks on our test site. As always, help with testing is much appreciated.
If you have a few minutes spare, please try a few things out on http://docs.moodle.org/test (same login as for moodle.org). See MDLSITE-1239 for particular things to check and report any problems in MDLSITE-1239. Many thanks!