Last modified: 2014-05-22 18:50:57 UTC
The most recent version of each image is stored in the image table, with historic versions stored in the oldimage table. This structure resembles cur and old, with all the nastiness that comes with it. In MW 1.5 we ditched cur/old in favor of page/revision, but we never did a similar thing for images. We talked about this a bit at the Amsterdam hackathon and decided that, while it's complex and hairy, we want to do it at some point in the future.
Adding keywords in the title for easier searching. Spent 4 minutes trying to find this.