According to the release notes, the new Radeon Software Crimson ReLive Edition 17.8.1 WHQL drivers add official WHQL-certified support for Radeon RX Vega Series graphics cards and are also game-ready drivers for Quake Champions Early Access and Agents of Mayhem games.
In addition, the new Radeon Software drivers version also fix several issues, including an HDCP error code while playing Blu-ray content on some protected content applications, intermittent HDMI signal loss on a limited number of HDR enabled TVs, application crash on GTA V, tearing and choppy playback on desktop or Youtube playback with Enhanced Sync enabled, long or extended load times in Forza Horizon 3, RX 380 series crash in Tekken 7 and various issues with FreeSync including stuttering when watching fullscreen video content and brightness or flickering issues on Samsung FreeSync displays.
As always, you can download the latest Radeon Software Crimson ReLive Edition 17.8.1 WHQL-certified drivers from AMD's support page. According to the same release notes, the new drivers support all graphics cards since Radeon HD 7700/HD 7900 days and are available for Windows 10 and Windows 7 OS in both 32-bit and 64-bit versions.