Yep. NVidia's drivers stopped working, too. Been waiting for them to update for a few days now. Still no word.
<key>NVDARequiredOS</key>
<string>13F1096</string>
sudo cp -a /System/Library/Extensions/NVDAStartup.kext ~/Documents # just a backup copy
sudo cp -a /System/Library/Extensions/NVDAStartup.kext ~/Desktop
cd ~/Desktop
sudo vim NVDAStartup.kext/Contents/Info.plist # change the version string under the NVDARequiredOS key here and save
Inside /System/Library/Extensions/NVDAStartup.kext/Contents/Info.plist you can edit the required OS to the one you have installed right now (13F1096) and it will work.