User blog comment:Timeoin/Minor Patch Needed To Play Skyrim/@comment-4047069-20111108144116/@comment-4495316-20111108150125

It fixes bugs. After they finished the game and sent it to packing/shipping and out to stores, they went and quickly looked through their known glitches and bugs. And instead of either stalling the release date, or making us wait a month for a working patch, they are releasing it on day 1.