Just under an hour ago, Treyarch sent a new PC patch live. While an official announcement of what it addresses has not been made, it was previously disclosed that it would address long shader compile times on Nvidia 4 series cards and other FPS optimizations, as well as CPU optimizations and a Zombie matchmaking fix.

Many users are reporting a dramatic drop in CPU usage, as well as a dramatic increase in frames. Some say their issues with the game have been resolved in its entirety while others, despite the improvements, say that the hitching and stuttering remains. Personally, my frames are now through the roof, but I'm still experiencing periods of frame lag.

Gamers-Underground.com servers have now been updated and restarted, so if your client is now up-to-date, jump on and let us know what improvements you're seeing.