- Now playable:
- Avatar: Frontiers of Pandora (desktop only)
- Ball at Work: The Ultimate Speedrun Platformer!
- Banyu Lintar Angin
- Dinner with an Owl,
- Farlight 84
- Flatout 3
- KinitoPET
- Owl Observatory Demo
- Sleeping Dogs: Definitive Edition
- Super
- Sword of Convallaria
- Syberia
- THE KING OF FIGHTERS XIII STEAM EDITION
- To Pixelia Demo
- Unity of Command II
- Zaccaria Pinball
- Fixed 9.0 regressions:
- Alan Wake's American Nightmare's DLC is playable again.
- Bionic Commando is playable again.
- Controllers work again in Sonic Forces.
- GRID Autosport and GRID 2 are playable again.
- Noita mods no longer fail to update.
- Warhammer 40,000: Darktide no longer freezes randomly when processing shaders for the cache.
- Improved language support for Guild Wars 2.
- Enable controller support in the launchers of Fallout 3 (standard and GOTY edition) via Xalia.
- Fixed cutscene playback in Iragon games.
- Fixed Yakuza Kiwami not working on certain setups.
- Added support for D3D12 in OpenXR.
- Fixed AVPro playback in VRChat.
- Fixed video quality of live streamed episodes in Quantum Break.
- Fixed artifacts in Yakuza 4 Remastered opening video.
- Improved support for workshop levels in Zeepkist.
- Improved loading time of Arcanum.
- Fixed Aimlabs having broken News section.
- Fixed RAID: World War II randomly hanging on start.
- Fixed Strip Fighter ZERO not starting on some setups.
- Fixed Undecember not being playable after a recent game update.
- Fixed missing cursor in IL-2 Sturmovik: Cliffs of Dover Blitz Edition.
- Fixed a crash in Starfield: Creation Kit.
- Fixed text not being displayed during the installation of EA Desktop launcher.
- Fixed "Customize Setup" not working during EA Launcher installation.
- Fixed Halo Infinite rendering using a weird resolution on a Steam Deck.
- Improved microphone support in Squad.
- Fixed License Agreement not displaying correctly in Romance of the Three Kingdoms [JP].
- Fixed FINAL FANTASY XII THE ZODIAC AGE displaying white screen on launch on Steam Deck OLED.
- Fixed microphone not working with Helldivers 2 after a recent game update.
- Fixed freezes in Dinogen Online.
- Fixed Dinogen Online crashing randomly on start.
- Fixed SCP Secret Laboratory crashing after a recent game update.
- Fixed Burnout Paradise Remastered crashing when an input video device is plugged in.
- Improved memory usage of Burnout Paradise Remastered and lowered the chances of crashing.
- Fixed font rendering in Insanely Twisted Shadow Planet.
- Fixed Once Human crashing when trying to join a server or opening the EULA on fresh Proton prefixes.
- Fixed Ubisoft Connect requiring a manual log in with a new prefix with Far Cry 3 Blood Dragon (some other games may still suffer from that similarly as on Windows with a clean Ubisoft Connect install).
- Fixed The Finals not being playable after a recent game update.
- Fixed video playback in Spirit Hunter: NG.
- Improved memory usage when playing videos in 32bit games.
- Fixed font rendering in Shady Brook - A Dark Mystery Text Adventure.
- Fixed Steam Deck users being forced to use MTL145 nickname in Project Kunai.
- Fixed connecting with Unreal Insights to games running under Proton.
- Added a warning that appears in Proton Log for systems that have low file descriptor limit (e.g. non-systemd distributions).
- Fixed video playback in One Finger Death Punch.
- Fixed Hell Yeah! Wrath of the Dead Rabbit crashing when reaching first boss.
- Updated Wine Mono to 9.2.0.
- Updated vkd3d-proton to v2.13-64-g47840a4bb614.
- Updated dxvk to v2.4-40-gd0ea5a4a87c9.
- Updated dxvk-nvapi to v0.7.1-19-gbd542144518d.