We naturally continued to work on the game after the gold master shipped, we ain't Blizzard who can sit and delay a game for a couple of years if need be. Fixing less obvious bugs, improving the AI, improving balance, and tracking down out of sync issues for multiplayer. The last one we think we have nailed. This becomes the 1.1 version. For those of you who buy a boxed version there will be a 1.1 patch on release. The Download sites recieved the 1.1 version as their gold master. It is the nice thing with download sites that we need less lead time.