The new AMD Radeon Software Crimson Edition 16.2.1 Beta drivers are mostly focused on bringing Crossfire support for Far Cry Primal game released yesterday but also fixes a couple of other bugs in games like Rise of the Tomb Raider, Fallout 4 and Far Cry 4. It also fixes some issues with AMD Freesync, Crossfire and Overdrive.
Earlier benchmarks from Ubisoft's Far Cry Primal show that AMD Radeon graphics cards have a slight lead over Nvidia Geforce, especially AMD's Radeon Fury series, which score quite well at 4K/UHD resolution at high preset. With new Beta drivers, AMD should perform well in Crossfire as well.
As it was the case with earlier drivers the new AMD Radeon Software Crimson Edition 16.2.1 Beta drivers support all AMD Radeon graphics cards since HD 7700/7900 series and are available for Windows 7, Windows 8 and Windows 10 operating systems in both 32-bit and 64-bit flavors.
You can find the new AMD Radeon Software Crimson Edition 16.2.1 Beta drivers at AMD's support page where you can also check out the full list of bug fixes in the release notes.