An update to Team Fortress 2 has been released. The update will be applied automatically when you restart Team Fortress 2. The major changes include:

• Security and stability improvements
  
• Fixed a client crash related to previewing market items
  
• Fixed Strange cosmetic items not counting buildings_destroyed for buildings destroyed by a sapper
  
• Fixed looping particle effects being orphaned when players are killed or force-respawned
  
• Fixed Taunt: Shooter's Stakeout using one of the Engineer's voice lines
  
• Updated Smissmas Swirls, Amethyst Winds, and Golden Gusts Unusual effects
  
  
  • Fixed visibility issues in bright environments
    
  • Reduced delay before the swirls start in order to accommodate short taunts
  
  
• Updated Sparkling Spruce, Glittering Juniper, and Prismatic Pine Unusual effects
  
  
  • Raised the default height of the effect in order to prevent clipping issues
  
  
• Updated the Sparkling Lights Unusual effect
  
  
  • Fixed visibility issues in bright environments
  
  
• Updated Condescending Embrace Unusual effect
  
  
  • Fixed the effect not moving when taunting