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:

• The Grandmaster will now update its model based on the owner's current kill streak
  
• Removed the requirement for SSE2 that was introduced during a previous update
  
• Updated The Jupiter Jumpers so they can be equipped with the Mantreads and the Gunboats
  
• Halloween event notes:
  • The Eternaween server enchantment can now be used to call a server vote to enable Halloween items on that server for a two-hour period
    
  • Fixed an exploit in Helltower caused by attempting to change teams while in hell
    
  • Updated Halloween spells so that the effects will only be visible during Halloween/Full Moon events. Spells will not be removed from the items they have been applied to.
    
  • All Halloween event items have automatically expired except the Spooky Crate and the Pile Of Curses, which will automatically expire tomorrow.