That Day of Defeat: Source Summer Update we've been banging on about has been released.
The update features anew Detonation game type and two maps to go with it - Jagd and Colmar. You can watch a video of how Detonation works on Colmar over on Eurogamer TV.
That's not all either - the update also sorts out a number of outstanding issues in the game, and makes a few tweaks presumably aimed at balancing too, like reducing the recoil and fire delay on the Garand and shortening the BAR reload time.
The update should apply itself next time you restart Steam. Full details are available on the Steam website.