In their last night’s update, Valve added a completely new Team Fortress 2 map. The map has been released, together with various fixes for the multi-player mode on PCs.
A few very annoying bugs were fixed with this update, such as adding custom spray tags, which previously made the game crash. Then, there was a bug where the game wouldn’t record player statistics, and it has also been fixed.
Also, there’s some additional game optimization that should help players with older machines.