The 10.12 version of the Catlyst Driver suite brings a number of improvements. The most noticeable is an overhauled (and much improved, IMHO) interface. The big Eyefinity update is the inclusion of support of 5x1-Portrait support. There are a number of improvements listed for CrossFireX and stability improvements, on specific titles.
Eyefinity Updates - Support for 5x1-Portrait Eyefinity
DivX - DivX GPU acceleration in the Radeon 6800/6900 series
OpenGL - Support for OpenGL 4.1
Catalyst Control Center - New GUI for the Catalyst Control Center:
Source:AMD
