Folks who play the Orange Box via Steam will get an engine update next time they log in.
The specific changes include:
- Updated the engine to report SteamIDs using the Steam_0 format instead of Steam_1
- Fixed problems in Half-Life 2: Episode Two, Portal, and Source mods running the current Orange Box engine
- Reverted the change that capped rate at 30,000
For more information hit the link.