# Left 4 Dead 2 Left 4 Dead 2 - Update

- Product: Left 4 Dead 2 (https://whatsnew.fyi/product/left-4-dead-2)
- Vendor: Valve
- Date: 2024-03-11
- Original notes: https://store.steampowered.com/news/app/550/view/4121428166613667501
- Permalink: https://whatsnew.fyi/product/left-4-dead-2/releases/2024-03-11-left-4-dead-2-update

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- **fixed** — Fixed several matchmaking lobby exploits
- **changed** — The cvar mm_dedicated_force_servers now only applies to lobbies with the Best Available Dedicated server type as originally intended
- **added** — Added new cvar mm_dedicated_force_official_servers for forcing official dedicated server selection

An update has been released for Left 4 Dead 2:

- Fixed several matchmaking lobby exploits.
- The cvar "mm_dedicated_force_servers" now only applies to lobbies with the "Best Available Dedicated" server type as originally intended - for all other lobby types the cvar is ignored. Lobby leaders who wish to force official dedicated server selection due to location or network issues should use the new cvar "mm_dedicated_force_official_servers", which only pulls from available official dedicated servers at the requested IPs.