Valve has addressed a few minor issues plaguing PC gamers since the release of Left 4 Dead 2. The updates will be applied automatically when your Steam client is restarted.
The major changes include:
+ Fixed performance problem when rendering lots of decals, notably when fighting tanks with shotguns
+ Fixed rcon response not working on Linux dedicated servers
+ Fixed rcon response not working on Linux dedicated servers
+ Fixed matchmaking problem matching into Advanced and Expert games
+ Fix bug that would cause other specials to try to pummel a player a Charger disconnects or reconnects
+ Fixed versus mode results panel being cut off in transition stats screen in non-english
+ Found games: fixed non-player entries drawing the wrong type of icon in the selected item name label
+ Game mode selector on main menu now takes keyboard input