# Steam SteamOS 3.8.21 Beta

- Product: Steam (https://whatsnew.fyi/product/steam)
- Vendor: Valve
- Date: 2026-07-02
- Original notes: https://store.steampowered.com/news/app/1675200/view/701020348316913156
- Permalink: https://whatsnew.fyi/product/steam/releases/2026-07-02-steamos-3.8.21-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.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

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- **changed** — Steam Machine splash screen/logo now appears much more quickly after device startup
- **added** — Add option to reset all audio configuration and settings to system defaults under Settings -> Audio
- **fixed** — Fixed 20-30s startup delay in some games on non-Valve devices with no audio sources
- **fixed** — Fixed a regression with some MSI Claw devices on newer firmware losing access to the Guide and Quick Access Menu buttons
- **fixed** — Fixed a regression with Legion Go 1 models on older controller firmware where gyroscope would fail to initialize
- **fixed** — Fixed a regression on OneXPlayer F1 models where rumble was being blocked and the joystick poll rate was low
- **added** — Added controller support for missing OneXPlayer F1 and OneXPlayer 2 special edition models
- **fixed** — Fixed an issue causing controller firmware updates to fail on certain Steam Deck models

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.

_Note: This beta contains changes that were simultaneously released to SteamOS stable channel as _[3.8.13](https://store.steampowered.com/news/app/1675200/view/701020348316913154),_ noted below_

**General**

- The Steam Machine splash screen/logo now appears much more quickly after device startup

- Add option to reset all audio configuration and settings to system defaults under Settings -> Audio

- Fixed 20-30s startup delay in some games on non-Valve devices with no audio sources

- Fixed a regression with some MSI Claw devices on newer firmware losing access the Guide and Quick Access Menu buttons.

- Fixed a regression with Legion Go 1 models on older controller firmware where gyroscope would fail to initialize.

- Fixed a regression on OneXPlayer F1 models where rumble was being blocked and the joystick poll rate was low. As a consequence, the M1 (left) extra shoulder button is no longer able to function.

- Added controller support for missing OneXPlayer F1 and OneXPlayer 2 special edition models.

**Fixed in 3.8.13**

- Fixed an issue causing controller firmware updates to fail on certain Steam Deck models