The demo for Left 4 Dead was just updated. PC owners of the title should restart their clients unless the auto-updater already took care of your game.
- Tuned matchmaking to provide better search results
- Added UI to host a game on a local server
- Improvements and performance optimizations to network layer
- Improved handling of unsupported graphics hardware
- Fixed a rare crash when kicking people from lobby
- Fixes for demo exploits
- Localization fixes
- Increase automatic port range when running a Linux dedicated server with -fork