Note: This update is for the Steam Deck Preview channel, and includes new features that are still being tested. You can opt into this in Settings > System > System Update Channel.

Note on Preview Releases

This is an early Preview build of SteamOS 3.9, and may contain unexpected bugs or stability issues. If you encounter problems, please consider filing a bug on the SteamOS issue tracker.

The following notes are an overview, and may not include all changes since the previous SteamOS 3.8 Stable Release.

General

• Updated Arch Linux base

• Updated Desktop Mode from Plasma 6.4.3 to Plasma 6.7.3

  • For more information, see
    https://kde.org/announcements/plasma/6/6.7.0/
    https://kde.org/announcements/plasma/6/6.6.0/
    https://kde.org/announcements/plasma/6/6.5.0/

Misc

• Updated the bootloader to improve compatibility with certain motherboards

• The Desktop Mode lockscreen is no longer prevented from being explicitly enabled in settings (but remains off by default)

Developer

• Switched WiFi backend to wpa_supplicant by default for new installations, improving compatibility with various WiFi networks

  • Enhanced wpa_supplicant to support fast WiFi reconnect on resume from sleep, previously only available in the iwd backend

  • Known issue: Existing installations will continue to use iwd unless manually enabled in Developer Settings

• Linux kernel rebased on Linux 7.2

• Added preliminary support for hibernation, not yet exposed in Game Mode UI

  • Enhanced Linux kernel hibernation support to enable interrupting hibernate requests and fixed various driver issues

• Various scripts and packages have been renamed from `steamos-` to `holo-`, with aliases to the former names where appropriate

• Improved support for running SteamOS as a VM guest with accelerated graphics (virtio-gpu, venus)

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

Le client Steam a été mis à jour dans le canal de sa version de prévisualisation/version bêta.

Général

• Correction d'un plantage lors de la mise en veille et reprise d'un appareil après la déconnexion d'un contrôleur.

Remote Play

• Correction du problème suivant : les appareils à distance avec Remote Play activé ne s'affichaient pas comme étant disponibles pour la retransmission.

Le client Steam Deck a été mis à jour dans le canal de sa version de prévisualisation/version bêta.

Général

• Correction du problème suivant : il arrivait parfois qu'un jeu ne soit pas retiré de la file des téléchargements après avoir été désinstallé.

Le client Steam Deck a été mis à jour dans le canal de sa version de prévisualisation/version bêta.

Général

• Correction d'un autre problème touchant certains anciens articles du Workshop Steam qui n'étaient pas mis à jour correctement.

Version bêta expérimentale de SteamRT3

• Correction d'un problème qui empêchait parfois les jeux de se lancer.