What changed in Left 4 Dead 2 in 2024

34 updates · 4 main milestones · Jan 17, 2024 to Dec 2, 2024

  1. 1 event
    Fixed Linux Client Crashbug fix

    Resolved a compatibility issue that was causing a crash on Linux clients.

    Steam
  2. 1 event
    Left 4 Dead 2 Free Weekend for 15th Anniversaryseasonal event

    Left 4 Dead 2 is free-to-play until November 18th to celebrate its 15th anniversary.

    Steam
  3. 1 event
    Fixed exploits used to crash remote serversbug fix
    Steam
  4. 1 event
    Fixed exploits causing remote server crashesbug fix
    Steam
  5. 2 events
    Fixed crash and remote code execution exploitsbug fixMilestone
    Steam
    Fixed crash on NVIDIA graphics cards with High shader detailbug fix
    Steam
  6. 2 events
    Fixed crash and remote code execution exploitsbug fixMilestone
    Steam
    Fixed crash on NVIDIA graphics cards with High shader detailbug fix
    Steam
  7. 1 event
    Player Connect Message Updatenetwork

    Player connect message is no longer networked to clients, to prevent exposing player IP addresses.

    Steam
  8. 1 event
    Screenshot Functionality Restoredbug fix

    Fixed a regression that blocked taking screenshots.

    Steam
  9. 4 events
    Prevent running arbitrary script code on a remote serverbug fixMilestone
    Steam
    Implementation example for a new beta feature in Steamnew content
    Steam
    Prevent network exploit allowing client access to server settingsbug fixMilestone
    Steam
    Fixed memory leak exploit in lobby chatbug fix
    Steam
  10. 3 events
    Fixed game crashing exploitsbug fix

    Addressed two exploits that used invalid content to crash the game or prevent it from loading.

    Steam
    Fixed player connection exploitbug fix

    Resolved an exploit that could block a player from connecting to any game, whether online or local.

    Steam
    Fixed memory leak issuebug fix

    Resolved a memory leak that occurred when rejecting invalid content.

    Steam
  11. 1 event
    Community Server List Bug Fixbug fix

    Fixed a bug that prevented the community server list from appearing.

    Steam
  12. 2 events
    Fixed server crash exploitsbug fix

    Resolved two exploits that could remotely crash servers.

    Steam
    Fixed music issue on Linuxbug fix

    Addressed the issue of music not playing at the main menu on Linux.

    Steam
  13. 4 events
    Fixed client exploit causing server stallsbug fix

    Fixed a client exploit that could cause long server stalls.

    Steam
    Fixed potential crash with Charger navigationbug fix

    Fixed a potential crash if a Charger failed to return to valid nav for an extended period of time.

    Steam
    Fixed rare hang from ray traces with NaN valuesbug fix

    Fixed a rare hang from ray traces encountering NaN values.

    Steam
    Fixed exploit degrading server performancebug fix

    Fixed another exploit where malicious network packets could severely degrade server performance.

    Steam
  14. 1 event
    Blocked exploit for forced disconnectionbug fix

    An exploit that could forcibly disconnect a player from any server, even when playing a local game, has been blocked.

    Steam
  15. 3 events
    Fixed missing lobby state messagesbug fix
    Steam
    Fixed community server search returning incomplete resultsbug fix
    Steam
    Fixed exploits causing remote server crashesbug fix
    Steam
  16. 1 event
    Improved Server Selection Reliabilitynetwork

    Enhanced the reliability of 'mm_dedicated_force_official_servers' to find the lowest ping server across the supplied IPs.

    Steam
  17. 2 events
    Updated cvar for dedicated server selectionbalance change

    The cvar 'mm_dedicated_force_servers' now only applies to 'Best Available Dedicated' server type. New cvar 'mm_dedicated_force_official_servers' introduced for official server selection.

    Steam
    Fixed matchmaking lobby exploitsbug fix

    Several matchmaking lobby exploits have been addressed.

    Steam
  18. 2 events
    Re-enabled spray uploadsquality of life

    Re-enabled uploads by default so sprays will work again.

    Steam
    Fixed server stall exploitbug fix

    Fixed an exploit where reliable network fragments could stall out a server indefinitely.

    Steam
  19. 1 event
    Fixed malformed network packet processing issuebug fix

    Resolved a case where malformed network packets could delay processing, impacting server performance.

    Steam