Proton 9.0's second release candidate is now up for grabs. Overwatch 2 is now less likely to crash unexpectedly, Age of Empires II: Definitive Edition video playback is functioning properly, Total War: Warhammer II video playback does not have clicking audio, Call of Juarez: Gunslinger does not crash upon startup, Sea of Thieves video playback is supported on Steam Deck, Borderlands GOTY Enhanced is playable again, Mars First Logistics can upload to Steam Workshop, and Nvidia setups are playable again. All of these issues have been addressed by the new release candidate.

Proton 9.0 (Release Candidate 2)

• Previously playable only with Proton Experimental: Sonic Colors: Ultimate, Command & Conquer: Red Alert 2 and Yuri’s Revenge, Command & Conquer Tiberian Sun and Firestorm, Aisling and the Tavern of Elves, Snares of Ruin 2, Insanity's Blade, Bloody Walls.
• Fixed Proton 9.0 regressions:
  • Overwatch 2 no longer randomly crashes.
  • Video playback in Age of Empires II: Definitive Edition works again.
  • Total War: WARHAMMER II no longer has clicking audio while playing videos.
  • Call of Juarez: Gunslinger no longer crashes on start.
  • Sea of Thieves is able to play videos on Steam Deck.
  • Borderlands GOTY Enhanced is playable again.
  • Mars First Logistics is now able to upload to Steam Workshop.
  • Neverwinter, Star Trek Online and Champions Online are playable again on Nvidia setups.
  • Fixed input issues with Worms Armageddon.
  • Main menu video is looping correctly in Call of Cthulhu.
• Fixed audio in BOOMEROAD, DORONKO WANKO, NOTTOLOT.
• Fixed Civilization V Touch Only option in the launcher not working.
• Improved cutscene desync in Immortals Fenyx Rising.
• Limited number of cores seen by the following games making them playable on a high core count CPUs:
  • Far Cry 2
  • Far Cry 4
  • The Witcher 2: Assassins of Kings Enhanced Edition
  • Lara Croft and the Guardian of Light
  • Warhammer 40,000: Space Marine
  • Warhammer 40,000: Dawn of War II
  • Warhammer 40,000: Dawn of War II - Chaos Rising
  • Warhammer 40,000: Dawn of War II - Retribution
  • Outcast - Second Contact
  • Prototype

Release Proton 9.0 (Release Candidate 2) · ValveSoftware/Proton