The long awaited Team Fortress 2 update arrives today! A new gameplay type, gold rush, is headlining this new release. A new control-point map, named "Badlands," has been released for Team Fortress 2, along with a slew of other new updates. A complete change log details what's new. In addition to the new map and game type, several other maps have been fixed, most importantly cp_dustbowl (which is still ridiculously hard to win as the BLU team).
Update: I was wrong about the game type. It looks like the new badlands map is simply a new control point map (which I'm still excited about trying).