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

Team Fortress 2

• Added the Spiral Knights promotional hat
  
• Updated The Superfan, The Essential Accessories, and The Hero's Hachimaki so they can be painted
  
• Updated The Conjurer's Cowl and The Maul so they can be crafted and traded