A new update for Team Fortress 2 is available automatically via Steam, offering a new Capture the Flag map as well as some changes and fixes:

Updates to Team Fortress 2 have been released. The updates will be applied automatically when your Steam client is restarted. The specific changes include:

Team Fortress 2

    >> Added new capture the flag map CTF_Well
    >> Added Spanish map descriptions
    >> Added new option to auto-save a scoreboard screenshot at the end of a map to the Multiplayer->Advanced dialog
    >> Added more particle optimizations for mid range and low end hardware
    >> Updated CP_GravelPit to fix all known exploits and changed the scoring method to score per capture rather than per round
    >> Updated "nextlevel" CVAR to trigger a changelevel at the end of the current round (not mini-round)
    >> Fixed SourceTV demo recording problem
    >> Fixed mp_stalemate_enable not preventing Sudden Death mode on some maps
    >> Fixed a couple cases where player stats were not being recorded correctly
    >> Fixed some log entries being truncated
    >> Fixed crash caused by trying to import a custom player spray
    >> Removed the "Reset Stats" button from the Player Stats screen