As promised, a major update to Valve's zombie shooter Left 4 Dead was pushed out for the PC version of the game today - Xbox 360 players will be served in the coming weeks. The patch, which will be automatically downloaded through Steam, addresses a load of bugs and exploits, adds a few tweaks and even introduces some new features.


Particularly, fans of the Smoker class will be pleased to note that they now inflict more damage and recharge faster in versus mode, making them much more powerful characters than before. Elsewhere there are nips and tucks for each of the remaining classes, including the Hunter, Tank and Witch infected types. Overall loading times have also been improved and a couple of client commands have been "cheat protected" in versus matches. The full patch notes can be found after the jump.

General

* Fixed Survivors being able to climb surfaces marked for versus infected only
* Fixed a class of SurvivorBot bugs dealing with rescuing downed players
* Players can no longer grab ladders while flying through the air after a Tank punch
* Shooting near a car with an alarm that has already fired the alarm will no longer make chirping noises
* Improved loading time
* Fixed mini-gun physics exploit
* Fixed propane tanks (and other physics objects) causing players to fall through elevators
* Fixed rare achievement bug issues
* Fixed several map exploits
* Fixed various match making issues
* Fixed NAT traversal issues

Versus Changes

* Added HUD elements to show status of other infected players
* Changed color of infected player name in chat to red
* Fixed exploit where players could spawn infected bots
* Fixed instance where a Survivor changing to the infected team would be attacked by infected bots
* Normalized special infected melee damage
* Made the following client commands cheat protected: "Kill" and "explode"
* Fixed exploit where infected players could run away and teleport back to gain health
* Players can only change teams once per map
* Players can't change teams while other players are still loading
* Tank spawns at the same % through the map for both teams in versus mode
* Made the Tank and Witch spawn directly on the escape route
* Increased chance of getting the Tank or Witch
* Fixed team swap issue

Hunter

* Easier to pounce a Survivor who is meleeing
* Increased Minimum damage a Hunter pounce does

Smoker

* Fixed Smoker tongue tolerance
* Smoker now has to be killed or the tongue destroyed for the tongue to break
* Survivors cannot bash someone off the tongue until the Survivor being pulled is paralyzed or hanging
* Tongue attacks that fail to paralyze or hang a Survivor will use the shorter ability delay timer
* Fixed cases where the ability timer was not using the correct time
* Fixed case where you could point at a Survivor but not register a tongue hit
* Fixed Smoker tongue not targeting and landing properly through PZ ghosts
* Smoker tongue does damage every second while dragging paralyzed Survivors

Tank

* Bashable objects now appear with a red glow
* Tanks hitting a car with an alarm disables the alarm permanently
* Tank frustration timer is only reset by hitting Survivors with rocks or fists
* Reduced autoshotgun damage against Tanks

Witch

* Witch spawns at the same % through the map for both teams
* Avoids spawning within a certain % of the tank
* Fixed an exploit where the Witch could be woken up and tricked into attacking Survivors