Update your client

[The Mighty Gerbil]

Steam is overloaded today so if you want in our TF2 game night quickly I suggest you get it updating now. I'm putting the password on the server as well until regulars get in. Password TF2FTW pass it around to our regulars.

 

[Tek7]

Mine must have updated when I was AFK. I'm trying to pull up the TF2 Wiki to read the patch notes, but the site is crawling (maybe affected by Steam sales?).

EDIT: Here are the patch notes from a different (but still official) source:

All News
Full Stories Headlines
14:38
Team Fortress 2, Counter-Strike: Source, Day of Defeat: Source and Half-Life 2: Deathmatch Updates Released
Product Update - Valve
Updates to Team Fortress 2, Counter-Strike: Source, Day of Defeat: Source and Half-Life 2: Deathmatch have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

Source Engine Changes (CS:S, DoD:S, TF2, HL2M)

* Fixed an engine crash caused by too many precached models in some community maps.

Day of Defeat: Source

* Fixed an exploit where clients could prevent weapons from recoiling properly.

Team Fortress 2

* Added several crafting recipes for new weapons.
* Added a ton of items to the store.
* Added a ton of items to the random drop list.
* The following hats are now paintable or have had their paintability improved: Pyromancer's Mask, Detective Noir, Madame Dixie, Buckaroos Hat, German Gonzila, Flipped Trilby, Coupe D'isaster
* Fixed a spelling error on the "Pyromancer's Mask".
* Corrected the name of the "Claidheamh Mòr" to the joy of our Celtic players.
* Made "Le Party Phantom" a misc slot item.
* Fixed a client crash caused by custom stats panels.
* Fixed a bug where some new items weren't being dropped correctly.
* Removed displaying the top 10 players in the leaderboard if you have never won a duel.
* Updated the localization files.
* Fixed a regression in Tournament Mode item whitelists.
o Also added "mp_tournament_whitelist", a convar that allows servers to specify a whitelist file to use.

EDIT: See this page for known blueprints.