Proton-CachyOS, a Proton fork maintained by CachyOS with extra patches and performance tweaks, has been released in version 11.0-20261014.

The update is based on Proton Experimental 11.0-20261014 with Wine rebased on Bleeding Edge. It improves winewayland.drv and winepipewire.drv and fixes issues in Arknights: Endfield, Loop Hero and Warhammer 40k: Space Marine 2. The native variant also gains partial 32-bit PhysX support on AMD via ZLUDA.

Proton (SLR and Native)

• Updated to Proton Experimental 11.0-20261014, Wine rebased on Bleeding Edge
• Improved winewayland.drv (pointer constraints and other issues)
• Improved winepipewire.drv: falls back to async mode if rtkit is unavailable
• Fixed Arknights: Endfield after its latest update
• Fixed Loop Hero crashes with WOW64
• Backported Wine changes for Warcraft III v3 support
• Fixed both Warhammer 40k: Space Marine 2 issues via Wine rebase
• Updated dxvk-sarek to v1.14.1
• Updated protonfixes and removed outdated fixes
• Improved OptiScaler integration for Streamline SDK downloads
• Added version information to generated logs

Proton (Native only)

• Added partial 32-bit PhysX support on AMD via ZLUDA (enable with PROTON_ZLUDA=1)
• Not compatible with current Steam/SteamRT3, works with umu-launcher

Source: GitHub