Patch Notes:
The game now includes requisite Portal 2 content. You should be able to run the game without Portal 2 installed! This should also fix issues where the game tells you a texture is missing.
A number of softlocks have been ironed out in Test Chambers 02, 13, 17, and 19.
GLaDOS is serious: Her neurotoxin will actually kill you now, and certain turrets will try to shoot you through portals.
Numerous small improvements: better collision props, walking into spinning fans can hurt, better signposting in some areas....
Areas with pistons should sound less annoying. Additionally, audio should be more robust if you have community mods or translations installed.
Please let us know if you continue to have issues with any of the fixes listed here. If you want help or have feedback, you can also join the Discord server.