The new AMD Catalyst 15.11.1 Beta driver has been released, bringing with it quality and performance optimisation for Fallout 4, Star Wars: Battlefront, Assassin’s Creed: Syndicate, and Call of Duty: Black Ops III. Presumably the new driver fixes the DX11/Crossfire flickering problem reported with the last version, since it is no longer listed as a known issue.
The AMD Catalyst 15.11.1 Beta driver release notes are as follows:
Highlights of AMD Catalyst 15.11.1 Beta Windows Driver
Includes quality and performance optimizations for the following titles:
Star Wars: Battlefront
Assassin’s Creed® Syndicate
Call of Duty® : Black Ops III
 Assassin’s Creed® Syndicate – Game cannot be launched in full screen mode on some laptop systems with an Intel processor and an AMD graphics device
 Star Wars
: Battlefront – Game cannot be launched in full screen mode on some laptop systems with an Intel processor and an AMD graphics device.
 Call of Duty® : Black Ops III – Flickering may be observed when running the game in DirectX® 11 mode and with AMD Crossfire
 Elite: Dangerous – poor performance may be experienced in SuperCruise mode
 A black screen may be experienced on booting Windows® 10 on some systems with switchable graphics – with AMD Radeon
HD5000 series graphics cards, when connected to an HDMI monitor
 Far Cry 4: The game may hang on launch on some AMD Radeon
200 and 300 series products under Windows® 7 and Windows® 8.1
The driver can be downloaded here.