The update fixes issues and adds gameplay elements throughout both single and multiplayer, including voice chat in multiplayer, a forecemodel option, a one-minute warning for tournament matches, fixed pure server autodownloading, Hyper-Threading Technology support, smooth stairjumping and a ton of multiplayer specific fixes which have been requested by the community and discovered during our own gameplay. This update will bring any previous version of the game completely up to date, however it will affect pure server and protocol consistency. Therefore, players who update to 1.1 BETA will only be able to play multiplayer against other 1.1 BETA users, and save games created on previous versions of the game will not be compatible with the 1.1 BETA update. Use the form at www.idsoftware.com/bugs/ to report any issues you find with the 1.1 BETA update.