Craig Lafferty, Unreal II's QA manager and associate producer at Legend, has issued a mind-numbingly long and tedious list of all the fixes which are scheduled to go into the game's first patch. If you need something to keep you occupied for the next hour, here's Craig's rundown on the Infogrames forum. There are changes in a number of categories, including crash bugs (we only experienced one fatal crash during the course of reviewing the game, incidentally), performance issues and a miscellany of other, less crucial updates. It does all seem to be fairly targeted, too - of particular interest to us was the chance to speed up player movement, something which seemed a bit sluggish when we played the game.
Sadly though, despite going to the ends of the earth in detail, we still don't know when the patch will be released. We'll let you know.