the official Catalyst 10.10 driver release, AMD has also rolled out the Catalyst 10.10a hotfix for Radeon HD 6800 series cards.
The new hotfix brings support for Morphological Anti-Aliasing feature, which is a new post-process filtering technique accelerated with DirectCompute. The new Morphological AA should provide faster full-scene anti-aliasing and is compatible with any DirectX 9, 10 and 11 application.
The 10.10a hotfix also brings some performance improvements in games like Aliens vs Predator, Star Craft 2 as well as some performance enhancements in Open GL games like Prey, Quake Wars and Unigine Heaven 2.1 benchmark.
You can find the new hotfix here