While Nvidia did publish an extensive post regarding the new drivers, which includes system requirements for games, bundles and optimizations, there aren't any official release notes so we are not sure if these bring any additional bug fixes.
So far, we do know that Geforce 376.09 WHQL drivers bring all the optimizations for Watch Dogs 2, which launches today, Dead Rising 4, which launches on December 6th and Steep game, which launches on December 5th. These new drivers probably include SLI profiles for these games as well.
Nvidia was also keen to note that it has been working with Ubisoft on Watch Dogs 2, which will use some of its Nvidia GameWorks effects and will be bundled with Nvidia Geforce GTX 1080 and GTX 1070 graphics cards as well as systems and notebooks with those GPUs. Of course, you'll need at least a Geforce GTX 1070 in order to run the game at 1920x1080 resolution and very high settings.
As always, you can download the new Geforce 376.09 WHQL Game Ready drivers over at Nvidia's driver support page or automatically via Geforce Experience software.