There's a few bumps in performance here and there. And if you're still on the original Beta driver that came on the CD with your HD 5970, it's really worth upgrading to the latest 10.1. Really, I thought we wouldn't see anything to get excited about at all, but combine a few bumps in performance here and there with the normal range of bug fixes and it's a nice little driver update.
Mass Effect 2 users might be disappointed with the fact they can't get AA working. The good news is that a hotfix driver came out soon after the release of this driver which fixes the problem while adding some CrossFireX performance improvements. You can nab the driver here.
While the 10.1 is being considered a standard driver, Terry has come out on Twitter and said, "CatalystMaker: 10.1 is just a standard release to fix up some bugs, but 10.2 and 10.3 will indeed have some major new features". So the good news is that while this driver isn't the most exciting, hopefully we have something more to talk about in February and March.
At the end of it all, there's nothing wrong with the 10.1 driver and you may as well take the chance to upgrade. If you're on one of the new HD 5600 cards, though, you'll be disappointed to know that this set doesn't support the newly released model.
Until next month, may all your frame rates be high and your games good fun!