Almost forgotten, but not noteworthy anyways: Valve has released a little update last friday night. It doesn't contain any new items but a few bug fixes.

All DX8 graphic players can be happy now: the water effect in Pyrovision got finally fixed now. The water should be normal on every map now. Also noteworthy is a closed Beta for a new Quickplay system. Only a few players got access to it, so we can't tell you anything more about it.

Here is the complete Changelog:

Source Engine Changes (TF2, DoD:S, HL2:DM)

• Added sv_namechange_cooldown_seconds, to throttle clients from changing their name too rapidly. (Defaults to 20 seconds)
• Added sv_netspike_on_reliable_snapshot_overflow to selectively enable the automatic dumping of netspike file if a client drops due to "reliable snapshot overflow" (defaults to 0, which disables the debugging)
• Added check to prevent player names from containing color codes
• setinfo console command will now reject attempts to set / change convars with any unusual characters
• Fixed Unicode characters getting stripped from player names

Team Fortress 2

• Fix a bug that caused gameservers to not properly receive client inventory updates. (Frequent cause of the "The server you are playing on has lost connection to the item server" error message.)
• Fixed not being able to equip all-class items properly
• Fixed the DX8 water effect
• Fixed the Beggar's Bazooka misfiring with 100% crits after firing a crit rocket
• Fixed the Sandman not accepting the Posthumous Kills strange part

Undocumented changes

• Special Delivery has been moved to entry number 7 in the Start Playing menu (was 1)
• Started beta of new quickplay system, available to a small percentage of players

Have fun!