Half-Life 1 Engine Update Released
From the Steam News Page:
On October 22, 2008 an update for the Half-Life 1 engine was released.
A new set of Steamworks features have been released for all Half-Life 1 engine multiplayer games: Counter-Strike 1.6, Condition Zero, Team Fortress Classic, Deathmatch Classic, Ricochet, Day of Defeat and Half-life 1 Deathmatch. The update includes Steamworks features such as player avatars in the scoreboard when playing Counter-Strike and Condition Zero. The update also contains several bug fixes, listed below. Note that this update will require all game servers to restart.