Offical from AMD or leaked ?
http://www.guru3d.com/news_story/download_amd_catalyst_12_11_beta_7.html
http://www.guru3d.com/news_story/download_amd_catalyst_12_11_beta_7.html
Additional update found in AMD Catalyst 12.11 Beta7
Call of Duty Black Ops 2: AMD CrossFire performance has been improved in the AMD Catalyst 12.11 Beta7 release (especially at higher resolutions – such as 2560x1600)
Please note that AMD Catalyst 12.11 Beta 7 includes all of the fixes found in previous versions of AMD Catalyst 12.11 Beta