Installing this driver is not recommended. Catalyst 15.9 beta contains a memory leak bug that gets triggered by resizing windows. AMD is working on a fix, in the meantime it's recommended to roll back to a previous Catalyst driver if you're experiencing issues.
AMD's Catalyst releases seem to be picking up again. This month the company rolls out Catalyst 15.9 beta, you can download this release over here. New in this version are performance optimizations for Star Wars: Battlefront Beta and the Fable Legends DX12 benchmark.
Star Wars™: Battlefront Beta - Performance and quality optimizations Fable Legends : Includes the latest DirectX® 12 optimizations for the Fable Legends: Benchmark
 Diablo 3 crashes in the Act 2 Desolate Sands area of the game  The AMD Catalyst Control Center 'update' option fails to download the latest driver  Dragon Age: Inquisition may crash if launched in Mantle mode  The DirectX® Diagnostic tool does not report DirectX® 12 available on supported products  World of Warships may crash on some AMD Radeon HD5000 and HD6000 series products  Assassin's Creed® Unity may experience minor frame stutter when AMD CrossFire™ mode is enabled  Anti Aliasing settings not being retained after changes are applied  Some BENQ 144hz Freesync™ monitors may lose the signal while uninstalling the driver  DiRT Rally™ crashes during gameplay and benchmarking when launched in DirectX® 11 mode on some BENQ 144HZ Freesync monitors