Valve pushed Proton 11.0-1 to stable on July 7, closing out five beta builds and a run of experimental testing that started back in April. It's the first stable release in the Proton 11.0 series, and the headline change is a rebase against Wine 11.0 upstream — the compatibility layer that lets Windows games run on Steam Deck and SteamOS.
What moves from Experimental to stable
A batch of games that previously only worked under Proton Experimental are now fully supported on stable Proton, alongside a handful that are playable for the first time in any Proton branch:
| Game | Status in Proton 11.0-1 |
|---|---|
| Resident Evil (1996) / Resident Evil 2 (1998) | Now stable (was Experimental-only) |
| Dino Crisis / Dino Crisis 2 | Now stable (was Experimental-only) |
| Warhammer: Vermintide 2 | Now stable (was Experimental-only) |
| SHOGUN: Total War | Now stable (was Experimental-only) |
| METAL GEAR SURVIVE | Now stable (was Experimental-only) |
| Gothic 1 Classic | Newly playable |
| Breath of Fire IV | Newly playable |
| Deadly Premonition | Newly playable |
| X-Plane 12 | Newly playable |
Beyond that list, Proton 11.0-1 lands a wide spread of individual game fixes: Far Cry 4's launch-hang is gone, Age of Empires II: Definitive Edition's keyboard input works again after refocusing the window, and a HELLDIVERS 2 crash tied to high enemy-count missions is patched. On the handheld side specifically, the update fixes Hollow Knight wrongly registering the Steam Deck's Steam button as a left trigger, and resolves Killer Inn failing to launch on Steam Decks and other machines where /tmp is smaller than 10GB — a storage-constraint bug that hit Deck owners running tight on space more than anyone else.
Valve also fixed a cluster of EA-related regressions — many EA games had gone unplayable after a recent EA Desktop update, and the Steam Overlay had stopped working correctly inside them — plus improved Rockstar Launcher popup rendering and Kodi media player support.
Under the hood
Component updates in this release: Xalia bumped to 0.4.9 (with new controller-launcher support for titles like Final Fantasy X/X-2 HD Remaster and Zero Escape: The Nonary Games), FEX 2605 for ARM64EC builds, VKD3D 1.19, DXVK 2.7, DXVK-NVAPI 0.9.1, Wine Mono 11.0, and VKD3D-Proton 20260410.
Proton 11 covers both the Steam Deck and the newly-shipped Steam Machine, which runs the same SteamOS/Proton stack on its RDNA 3 GPU — the same hardware that started getting FSR 4 support through Proton Experimental just last week. Between that and this stable release, Valve is clearly treating Proton as shared infrastructure across its whole hardware line now, not just a Deck-specific tool.
This is also the second time in a week Valve has used Proton itself to patch a broken game rather than waiting on the publisher — last week's Diablo IV Proton Hotfix got that game working again on Steam Deck and SteamOS while Blizzard's own fix was still pending, and the EA Desktop and Steam Overlay fixes in this release follow the same pattern of Valve shipping the workaround itself.
If Proton 11 beta was already in your download queue, 11.0-1 should update automatically. Otherwise it's available now by searching for Proton 11 in the Steam Play compatibility tool list.
Full changelog: Proton 11.0-1 release notes on GitHub.
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