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 an exploit related to not respawning in the spawn room at the beginning of Casual and Competitive matches
  
• Fixed Pyros griefing teammates by attacking them with the flamethrower
  
• Fixed Medics getting a permanent speed boost after healing a charging Demoman
  
• Fixed Medics getting the Demoman's charging speed when using Mediguns other than The Quick-Fix
  
• Fixed the Strange Razorback double-counting the number Spies shocked
  
• Fixed a bug related to the Sniper's zoom and taunting
  
• Fixed players being able to pick-up the PASS Time jack while they are stunned
  
• Increased the matchmaking system's preference for matching large pre-made parties against each other in Casual Mode. This should result in more balanced matches, but may cause a slight increase in queue times for larger parties.