Custom UI skins should display correctly now. Fixed main menu not refreshing after workshop add-ons have been loaded. This can be set on a per game mode basis - see cfg/addonconfig.cfg for details. Server operators can now specify whether or not custom content is allowed when playing on their servers. The Beta version also contains updated Windows and Mac clients, so even if you are not running under Linux you can help by testing the Beta. This will allow you to start working with EMS. You also receive access to the Left 4 Dead 2 Beta Authoring tools and Left 4 Dead 2 Beta Dedicated Server. This is a complete build of Left 4 Dead 2, so the build is as large as the current game. If you currently own Left 4 Dead 2, You should see “Left 4 Dead 2 Beta” in your library.

The Beta build not only allows Linux owners to play the game natively, it is also the testing ground for our new Extended Mutation System.

Thanks to the efficiencies we were able to achieve with Linux, we skipped Valve time and are delivering the L4D2 Beta Linux build today as planned.

Left 4 dead beta