NVIDIA just released the GeForce 368.25 WHQL driver, this release is exclusively for the new GeForce GTX 1080 video card. The driver adds support for several new features introduced by the Pascal architecture. It's not listed for other GPUs so it seems there are no specific changes for the GTX 900 series and older. You can download it over here.
Prior to a new title launching, our driver team is working up until the last minute to ensure every performance tweak and bug fix possible makes it into the Game Ready driver. As a result, you can be sure you’ll have the best day-1 gaming experience for your favorite new titles.
Learn more about how to get the optimal experience for Overwatch, World of Tanks, and War Thunder
Supports the new flagship GeForce GTX 1080; the most advanced gaming graphics card ever created. Discover unprecedented performance, power efficiency, and gaming experiences—driven by the new NVIDIA Pascal™ architecture. This is the ultimate gaming platform.
Supports the new GeForce GTX 1080 VRWorks features including Lens Matched Shading and Single Pass Stereo