A mandatory update for Team Fortress 2 was released mere moments ago. Today's update is mainly fixes for various bugs and weapons in the game.

Changelog for Team Fortress 2 for January 9, 2013

- Added the ability to change an item's style in the class loadout menu
- Fixed not being able to apply Killstreak Kits to the Sleeping Dogs promo items
- Fixed Killstreak sheens for the Gunslinger and the Heavy's Fists
- Fixed Killstreak counts being limited to 128 kills
- Fixed projectiles not drawing correctly in old .dem files
- Fixed not being able to gift wrap the Festive Sapper
- Fixed the Mann vs. Machine scoreboard not always displaying values correctly
- Fixed an exploit in Mann vs. Machine related to purchasing upgrades
- Fixed not being able to use the Festive Crusader's Crossbow in Medieval mode
- Fixed Medics seeing the incorrect string when trying to heal a target with the Escape Plan equipped
- Fixed Medigun healing beams staying on when the Medic dies while healing someone
- Fixed a problem that caused the Steam Holiday Sale 2013 promo items to be untradeable for some accounts
- Updated Strange Wranglers to track wrangled sentry kills
- Updated the Heart of Gold so name tags and description tags can be applied to it
- Updated the localization files
- Updated the Short Circuit
-- Damage lowered
-- Consumes 15 metal per projectile destroyed
-- Can no longer fire underwater
-- Fixed a bug with orphaned particles

You know the drill by now!