Proton 10 and 11 Now Optimize Games for Steam Deck Automatically

Your Steam Deck may soon spend less time in the Settings menu. Valve’s Proton 10 and 11 compatibility layers have received an update that developers have been waiting for: full support for Steamworks SDK 1.65. This isn’t a flashy feature drop — but it’s the kind of plumbing that will quietly improve the out-of-box experience for handheld players.

Automatic Hardware Detection Finally Works on Proton

The Steamworks SDK 1.65 update, released earlier this week, gave developers new tools to detect whether a game is running on Valve’s hardware, identify Proton usage, and set default graphics configurations per device. However, those capabilities remained dormant until Proton itself supported the SDK. Now both Proton 10 and 11 have been patched to include that support. Since many games still default to Proton 10, the backward compatibility ensures the widest possible coverage. Older versions like Proton 9 are left out, but that’s fine — the ecosystem is moving forward.

One Less Reason to Tinker: Why This Is Good for Handheld Players

For the average Steam Deck owner, this means fewer trips to the Quick Access menu to drop resolution or cap frame rates. Games that use Proton 10 or 11 can now automatically apply settings tailored to the Deck’s hardware profile, without requiring the player to hunt down community configs or watch optimization guides. Developers gain a clear path to ship Deck-optimized defaults, while players get a more console-like experience. It’s a quality-of-life upgrade that won’t make headlines — but it will make a measurable difference as more titles adopt the SDK. For Steam Deck owners, this is the kind of infrastructure update that silently makes the platform better. Expect fewer ‘Did you adjust the graphics?’ conversations in forums.