Nvidia also came out with an update for their "Long-Lived" 331.xx branch today

-    Added support for the following GPUs:
    GeForce GT 705
    GeForce GT 720
    GeForce GTX 860M
    GeForce GTX 870M
    GeForce GTX 880M
    GeForce GTX TITAN Black

-    Fixed a bug that could lead to crashes when running Left 4 Dead 2 with threaded optimizations enabled.
-    Updated the makefile for the NVIDIA kernel module to work around a bug in older versions of GNU Make that prevented the NVIDIA kernel module from building correctly. This bug was fixed in version 3.81 of GNU Make.
-    Fixed a bug that causes some X clients to be disconnected from the X server when the screen is resized while RandR 1.4 display offloading is in use.
-    Fixed a bug that could cause display corruption when resuming from suspend on systems using RandR 1.4 display offloading with recent Linux kernels.
-    Added support for Tridelity SL stereo mode.
-    Fixed a bug that could cause nvidia-settings to crash or display incorrect information after switching virtual terminals while a color correction confirmation countdown was active.
-    Added a missing 32-bit compatibility library for libnvidia-fbc.so to the x86_64 Linux installer package.