# Steam SteamOS 3.8.26 Beta

- Product: Steam (https://whatsnew.fyi/product/steam)
- Vendor: Valve
- Date: 2026-08-28
- Original notes: https://store.steampowered.com/news/app/1675200/view/689767056035283286
- Permalink: https://whatsnew.fyi/product/steam/releases/2026-08-28-steamos-3.8.26-beta
- Labels: Platforms: Desktop

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

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- **fixed** — Fixed an issue present in previous beta builds causing degraded performance in some cases when composition is required such as when having FSR enabled
- **fixed** — Fixed Firefox in Desktop Mode sometimes freezing when fullscreen
- **fixed** — Worked around an issue where Unreal Engine 5 VR games could display a blank right eye
- **fixed** — Fixed Bluetooth instability with Nintendo Switch Pro (v1) controller
- **fixed** — Fixed Desktop Mode allowing resolutions below 640x480 on certain displays, rendering it unusable
- **fixed** — Fixed a regression from previous beta breaking WiFi connectivity on the MSI Claw A1M
- **fixed** — Fixed issues with battery display on Lenovo Legion Go models
- **fixed** — Fixed a bug where the MSI Claw would freeze on resume if an SD card was present during suspend and resume
- **fixed** — Fixed a bug where the system would freeze on resume if an SD card was removed while suspended

This update is for the SteamOS Beta and Preview channels, and includes new features that are still being tested. You can opt into this in Settings > System > System Update Channel.

**General**

- Fixed an issue present in previous beta builds causing degraded performance in some cases when composition is required (such as when having FSR enabled)

- Fixed Firefox in Desktop Mode sometimes freezing when fullscreen

- Worked around an issue where Unreal Engine 5 VR games could display a blank right eye

- Fixed Bluetooth instability with Nintendo Switch Pro (v1) controller

- Fixed Desktop Mode allowing resolutions below 640x480 on certain displays, rendering it unusable

- Fixed a regression from previous beta breaking WiFi connectivity on the MSI Claw A1M

- Fixed issues with battery display on Lenovo Legion Go models

- Fixed a bug where the MSI Claw would freeze on resume if an SD card was present during suspend and resume

- Fixed a bug where the system would freeze on resume if an SD card was removed while suspended