🛠️ Left 4 Dead update history
Official announcements the developer posts on Steam—patches, new content, and events—sorted by date. Click a title to read the full post.
June 2026
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6/30Tue🛠️ Patch / updateLeft 4 Dead - Update
An update has been released for Left 4 Dead. - Fixed custom sprays not displaying for remote clients.
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6/26Fri🛠️ Patch / updateLeft 4 Dead - Update
An update has been released for Left 4 Dead. - Fixed several exploits that could crash servers or remote players.
August 2025
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8/23Sat🛠️ Patch / updateLeft 4 Dead - Update
An update has been released for Left 4 Dead. - Block clients' ability to pause dedicated servers, unless the server operator has explicitly allowed it.
January 2025
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1/18Sat🛠️ Patch / updateLeft 4 Dead Update
An update has been released for Left 4 Dead. - Fixed exploits used to crash remote servers.
December 2024
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12/3Tue🛠️ Patch / updateLeft 4 Dead - Update
An update has been released for Left 4 Dead. - Fixed some exploits used to crash remote servers.
October 2024
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10/26Sat🛠️ Patch / updateLeft 4 Dead - Update
An update has been released for Left 4 Dead. - Fixed several crash and remote code execution exploits.
June 2024
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6/13Thu🛠️ Patch / updateLeft 4 Dead - Update
An update has been released for Left 4 Dead game and authoring tools: - Fixes for several crash and remote code execution exploits.
May 2024
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5/2Thu🛠️ Patch / updateLeft 4 Dead - Update
An update has been released for Left 4 Dead: - Fixed an exploit that could force votes to pass without notifying other players. - Added protections against malicious network packets. - Integrated seve…
January 2024
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1/20Sat🛠️ Patch / updateLeft 4 Dead - Update
An update has been released for Left 4 Dead: - Fixed several vulnerabilities and exploits, reported via HackerOne. - Localization fixes, added Latin American Spanish.
February 2022
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2/1Tue🛠️ Patch / updateLeft 4 Dead - Update
An update has been released for Left 4 Dead. - Fixed a potential remote code execution exploit through malformed file uploads. Reported via HackerOne.
August 2021
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8/11Wed🛠️ Patch / updateLeft 4 Dead - Update
An update has been released for Left 4 Dead - Fixed Authoring Tools failing to write to disk
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8/10Tue🛠️ Patch / updateLeft 4 Dead - Update
An update has been released for Left 4 Dead - Fixed several potential RCE exploits.
Source: official Steam announcements (updated every 6–24 hours). Titles and summaries are copyright of the original developers.