# Steam Beta Client update improves non-Steam game Proton support

> **Key takeaway:** Windows binaries registered as non-Steam games will now run in Proton by default.

**Published:** 2026-10-08T00:11:03+00:00 
**Source:** Valve Steam Deck Official News 
**Category:** open-gaming 
**Canonical URL:** https://fosswire.org/news/steam-beta-client-update-improves-non-steam-game-proton-supp.html 

## Summary
Valve has released an update to the Steam Client Preview/Beta channel. The update introduces a setting to disable the screensaver during gameplay and changes how non-Steam Windows binaries are handled by defaulting them to Proton. It also includes several bug fixes for Steam Input on Linux and controller firmware.

## Technical changes in the Steam Beta
- **Proton Integration**: Windows binaries added as non-Steam games now default to using Proton.
- **Steam Input**: Fixed a bug on Linux where controller swapping failed on the "Reorder controller" screen.
- **Controller Firmware**: Resolved an issue where switching to BLE mode would hang if the host device was missing.
- **UI/UX**: Added a toggle to disable the screensaver while in-game.