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:

• Fixed a crash when opening the achievement dialog
• Fixed a bug where custom replacement materials in a map could persist to other maps
• Fixed a bug where some particles were not the using correct particle types on clients
• Fixed EmitSoundEx not using the correct sound name
• Fixed the Strange Filter prefix for vsh_tinyrock
• Fixed missing sounds and animation blends for the Taunt: Teufort Tango
• Fixed the equip_region for The Shrapnel Shell
• Updated vsh_skirmish to fix an issue where some props would disappear when viewed at certain angles
• Updated pl_phoenix
  • Fixed missing materials
  • Fixed various physics props obstructing the payload cart
• Updated vsh_nucleus
  • Fixed an exploit that allowed players to build out of bounds
  • Added decals to ammo pack locations throughout the map