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
Reduced Dedicated Server max search ping to 150 ms
Teams that prefer listen servers will no longer be matched with teams that prefer dedicated servers
Official dedicated servers are now preferred when searching for team matches
More populous lobbies are now preferred over less populous ones when searching for games
Players who crash or have failed to load are no longer banned if they have been kicked
Update Russian subtitles
Fixed not being able to interlink teams in team-on-team mode
Fixed not being able to properly migrate team lobby after team leader would leave the lobby
Fixed not being able to invite friends if player was not team leader in a team-on-team game
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