The update also broke my wiki. I went to the config page ( /mw-config/index.php ) and ran the updater there, which fixed my databases and got the wiki running again. However, now all my skins are broken, and when I grab new skins from mediawiki.org, the install claims that I need 1.25 to run them. What's going on, Dreamhost?
Okay, fixed it, but had to very carefully follow instructions here:
Once you run the git clone command to get your skin, it's critical that you do this:
Change into the new directory and run:
git checkout REL1_24
Then edit your LocalSettings.php file to include both:
$wgDefaultSkin = 'vector';
Or MonoBook instead of Vector, or whatever skin you decide to use. Once this is set, I was good to go.