Portal 2 Authoring Tools Update Released
 

Updates to Portal 2 Authoring Tools have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

Portal 2 Authoring Tools

• Fixed crash that could occur when malformed brushes were saved in a map and then re-opened in Hammer.
  
• Hammer will now properly save maps after detecting and fixing malformed brushes. Fixes “Permission Denied” error some users were experiencing.
  Removed “Lighting Preview” option as this is not currently supported
  

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