Oct 14, 2015
Left 4 Dead - Update
Left 4 Dead - Valve
An update has been released for Left 4 Dead.

- Fixed an exploit that could shut down dedicated servers.
- Fixed several buffer overflow exploits with networked files.
- Fixed a series of exploits caused by invalid or malformed textures.
May 20, 2014
Left 4 Dead - Update
Left 4 Dead - Valve
An update has been released for Left 4 Dead.

- Fixed the game failing to launch on some versions of Mac OS.
May 13, 2014
Left 4 Dead - Update
Left 4 Dead - Valve
An update has been released for Left 4 Dead.

- Enabled SteamCmd depot for dedicated server operators.
- Fixed an exploit that could allow clients to transfer blacklisted files to and from the server.
Dec 5, 2012
Left 4 Dead Update
Left 4 Dead - Valve
- Fixed a potential crash in the client shadow manager
- Fixed the game and tools not launching on machines with 16+ CPUs.
- Enable controller navigation of menus to support Big Picture mode.
Aug 22, 2012
Left 4 Dead Update Released
Left 4 Dead - Valve
Updates to Left 4 Dead have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

- Fixed a crash when attempting to play Single Player
- Fixed a possible buffer overflow in localized strings
- Fixed a networkID exploit that allowed players to avoid getting banned
- Fixed some images not rendering correctly on the dedicated server welcome screen
Mar 1, 2012
Left 4 Dead SDK Update Released
Left 4 Dead - Valve
Updates to the Left 4 Dead SDK are now available. The updates will be applied automatically when your Steam client is restarted. The major changes include:

- Fixed the preview window in modelbrowser.
Oct 7, 2011
Left 4 Dead Update Released
Left 4 Dead - Valve
Updates to Left 4 Dead have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

- Fixed off by one bug when processing entity packets
Mar 10, 2011
Left 4 Dead Updated
Left 4 Dead - Valve
Changes:
- Added support for raw mouse input

Dec 3, 2010
Left 4 Dead Update Released
Left 4 Dead - Valve
Updates to Left 4 Dead have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

Left 4 Dead
  • Fixed voice recording intermittently stopping on Mac OS X
  • Fixed mp3 playback not working on PC
Nov 2, 2010
Left 4 Dead Update Released
Left 4 Dead - Valve
Updates to Left 4 Dead have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

Left 4 Dead
  • Fixed achievements getting awarded incorrectly if you had previously played on a PC (Mac only)
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