Updates to Left 4 Dead 2 have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

Left 4 Dead 2
Fixed crash on startup when using FAT32 file system
Fixed in-game chat input where the local encoding differs from the input language’s
Fixed bug where Survivor Bots would sometimes become unresponsive in Scavenge games
Updated subtitle localization files for Hungarian, Portuguese, Romanian and Russian
Fixed exploit that allowed players on the Infected team to spawn directly next to the Survivors

Customers can update there left 4 dead 2 servers, via our one click steam update system within your game control panels.