sadly, when we upgraded sfartistwatch.com (http://sfartistwatch.com/index.php/Main_Page) to the newest version of mediawiki, it broke. It looks ok at first, aside from the fact that the reference to the logo we had was destroyed in the upgrade, but then if you log in, the formatting gets messed up and the tabs and sidebar go away. We still haven't figured that one out.

This sort of thing is not encouraging so far as upgrading regularly goes.