This is a sub-page of Left 4 Dead 2.
The Passing#
Update 2.0.1.2 was released on April 22, 2010 and added The Passing campaign, a new mode titled Mutations that would cycle through new game modes every week, the Fallen Survivor uncommon infected that was seen in the games files at launch, the golf club, the M-60, support for infected bot play in Versus, 10 new achievements and more. Mutations would be cycled weekly up until the July 24th, 2012 update.
The Sacrifice#
Update 2.0.4.1 was released on October 5, 2010 and added The Sacrifice update which featured the original Left 4 Dead survivors as playable characters. No Mercy was also added to the game with the original survivors playable and was the first campaign from the original Left 4 Dead to be added into its sequel. Additionally, this update also added Mac support.
Cold Stream Beta Release#
Update 2.0.6.3 was released on March 23, 2011 and added a beta version of the Cold Stream campaign made by the same creators of the 2 Evil Eyes custom campaign.
Dead Air Beta Release#
Update 2.0.7.5 was released on July 22, 2011 and added Dead Air from Left 4 Dead to Left 4 Dead 2 after 20,000 Left 4 Dead 2 players earned the achievement "STREAM CROSSER".
Blood Harvest Beta Release#
Update 2.0.8.2 released on August 12, 2011 added the Blood Harvest campaign from Left 4 Dead into Left 4 Dead 2.
Death Toll Beta Release#
Update 2.0.8.7 released on September 16, 2011 added the Death Toll campaign from Left 4 Dead into Left 4 Dead 2.
Crash Course Beta Release#
Update 2.0.9.1 released on November 4, 2011 added the Crash Course DLC campaign from Left 4 Dead into Left 4 Dead 2.
Cold Stream Full Release#
Update 2.0.9.1 released on July 24, 2012 which brought the Cold Stream campaign out of beta and also allowed players to select any mutation of their choosing in the menu.
January 18, 2013 (Steam Workshop Update)#
This update added Steam Workshop support to the game, effectively changing how players modded the game and how creators shared their creations.
The Last Stand#
Update 2.2.0.0 was released on September 24, 2020 and added the community made campaign The Last Stand (based on Left 4 Dead's DLC survival map of the same name) and brought over a thousand changes to Left 4 Dead 2, in areas such as scripting, modding, maps and weapons. This is also the latest major update as of November 29, 2025.1
General#
- Hundreds of fixes and tweaks to animations, models, dialog, map layouts and exploits.
- Fixed an exploit that could lag or crash a server by spawning infinite pistols.
- Rate-limit commands to prevent client command DOS attacks against servers.
- Fixed the ability to bypass the damage filter on the gas station's rolling door by going idle.
- Fixed avoiding damage from the charger by toggling in/out of idle while being body slammed.
- Fixed clearing the boomer screenspace effect by taking a break.
- Fix griefing exploit where a survivor would fire the grenade launcher and then switch to spectator to skip the friendly-fire check.
Weapons#
- Two new melee weapons were added: the Shovel and the Pitchfork.
- Certain melees can now spawn in a multitude of other campaigns, one example being the Golf Club appearing in Dead Center, Crash Course, Dead Air and The Sacrifice.
- The Counter-Strike: Source weapons from the censored German release became available to everyone.
- The pump shotguns' maximum shell capacity increased from 56 to 72.
- The pistol and dual-wield pistols had their icons updated.
- New skins for certain weapons, those being:
- "Worn" versions of the Assault Rifle, Hunting Rifle, Autoshotgun, SMG and Silenced SMG.
- "NamVet" version of the Assault Rifle.
- "Blue Wood" and "Operative" skins for the Desert Eagle, both based on Counter-Strike: Global Offensive textures.
- "War Torn" and "Rural" skins for the AK, the Rural skin being based on the CS:GO texture.
- "Swapped" skins for the Pump and Chrome Shotguns, which are... well, swapped.
- "Trophy" skin for the Cricket Bat, originally from the Australian version of the game.
- "Gold" Crowbar skin used as an easter egg for the "Golden Freeman" achievement.
- "Green" and "Diesel" skins for the Gas Can.
- Viewmodels use the skin value of the world pickup model, same as gas cans.
- When a weapon is holstered, transfer the current skin to the addon model.
- Improvements to some weapon viewmodels, mostly fixing visible cutoffs and also adding other miscellaneous things.
- The Scout's damage was increased from 95 to 105 points of damage.
Gameplay#
- Added two new mutations: Rocketdude and Tank Run.
- Bots will use pills only if health is less than 50.
- Removed "Single Player" option from the main menu carousel.
- Enabled the "Private Game" option in lobby permissions.
- Added a rematch vote to the end of Versus Survival matches.
- Fixed voice chat not working in lobbies.
- Versus Survival has been added to the Main Menu.
- Allow competitive achievements (versus, scavenge) to also be earned in Versus Survival.
- Fixed witch kills getting recorded as common zombie kills in the stats.
Characters#
- Restored previously-unused dialogue for Survivors.
- Turned on boomer gibs by default, except in low violence mode.
- Restored burn skins for infected.
- Fixed L4D1 survivors not selecting their canonical preferred weapons when scavenging.
- Fixed the L4D1 survivor gestures not playing on dedicated servers.
Maps#
- Added the somewhat-new Last Stand campaign based on existing Survival mode maps, 26 new Survival mode areas, and four new Scavenge mode areas.