One I completely forgot to post about here, NVIDIA recently released the 415.13 beta driver for Linux.
Released on the 8th of November, it includes a number of interesting fixes, including an issue fixed with WINE where it might crash on recent distribution releases. Nice to see WINE get some focus, since things like this can affect Valve's Steam Play.
They also fixed an OpenGL issue where conditional rendering was incorrectly affecting mipmap generation. Another OpenGL bug was fixed which caused the upper bounds of floating-point viewports, specified through the ARB_viewport_array extension, to be clipped incorrectly.
There's also a new X configuration option "HardDPMS" which they disabled by default. This will enable you to put your display to sleep with modesets rather than VESA DPMS (VESA Display Power Management Signaling), possibly fixing some displays that won't sleep when DPMS is active. NVIDIA say they will eventually enable it by default.
On top of that plus more fixes, they added the current synchronization state for PRIME Displays to nvidia-settings. This latest beta driver also ups the minimum Linux Kernel version to 2.6.9 to 2.6.32, along with a required X.Org xserver version bump to 1.5.
See the full changelog here.