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:

• Added the GA'lloween 2016 community event medals
  
• Fixed sv_shutdown not working for community dedicated servers
  • All servers now enter hibernation state when they are empty and have no remaining work, which informs commands such as sv_shutdown
    
  • Added tf_allow_server_hibernation (default: 1) to allow disabling hibernation state
    
  • This should generally only be necessary if running server plugins that are not compatible with hibernation
    
  • Added sv_shutdown_cancel to cancel a pending shutdown
• Updated the truce period during Halloween boss fights
  • Players are no longer affected by the truce when in their spawn room, allowing them to fight their way out if necessary
    
  • Sappers can no longer be used while a truce is active
• Updated the "tiny" spellbook spell
  • Fixed a case where players could get outside the world
    
  • Fixed not switching Heavies to their melee weapon
• Updated player destruction mode so the "Team Leader" does not heal teammates while in the Underworld
  
• Fixed Halloween contract reward items not being craftable
  
• Fixed Strange Human Cannonballs and Strange Battery Canteens not tracking stats
  
• Fixed Casual search criteria being saved automatically while connecting to a server
  
• Fixed a case where players could suicide on a pumpkin bomb to gain progress on certain Merasmissions
  
• Updated the equip region for the Spine-Chilling Skull
  
• Updated pl_fifthcurve_event (Brimstone)
  • Fixed exploit where players could get under the map near BLU starting area
    
  • Fixed exploit where players could get out of the map near graveyard
    
  • Fixed exploit where players could enter RED base as BLU
    
  • Fixed some skeletons running into lava when there are no enemies in Hell
    
  • Fixed medieval tiny spell & other Merasmus voice spells lasting too long for some players
    
  • Fixed big ghost getting stuck when map ends
    
  • Fixed a spot where players could get stuck if entering it under Tiny spell
    
  • Fixed another case of non-solid pumpkin
    
  • Tuned respawn time for RED team at last area
• Updated cp_sunshine_event (Sinshine)
  • Fixed multiple visible nodraws and other texture bugs
    
  • Fixed nonsolid pumpkin in lobby
    
  • Fixed trigger bounds in RED spawn
    
  • Various lighting changes