Well, would you look at that. AMD has released yet another Catalyst driver update—its fourth in the past couple of weeks. After the 11.11, 11.11a, and 11.11b releases, please give a warm welcome to the 11.11c Performance Driver. Cue thunderous applause.
This might come as a shock, but today's release is merely an incremental update over the previous drivers. All it adds is, in AMD's words, "CrossfireX performance scaling for the AMD Radeon HD 5000 Series" in The Elder Scrolls V: Skyrim. Monday's 11.11b release already added CrossFire scaling for Radeon HD 6000-series cards in that game, so in all likelihood, you don't even need to bother downloading this.
If you do need to upgrade, the driver is available for Windows 7, Vista, and XP in 32-bit and 64-bit variants. And believe it or not, this preview driver hasn't received the stamp of approval from Microsoft's Windows Hardware Quality Labs, so it may not be quite as stable as last month's 11.11 release. I'm going to have to stop writing here, because I'm too overcome with excitement to continue.