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.

General

• Updated to a newer Arch Linux base

• Updated the Linux kernel to 6.11

• Updated the Mesa graphics driver base

• Desktop mode now ships with Plasma 6.2.5

• Beginnings of support for non-Steam Deck handhelds

Controllers and Input

• Add support for the Proteus Byowave controller

• Fixed an issue where Switch Pro Controller gyros might not work on first connection

• Fixed an issue with stuck/hanging controller inputs when exiting Steam

Bluetooth

• Fixed Bluetooth devices still being able to wake the Steam Deck from suspend, even when Bluetooth was disabled from Desktop mode

• Enable HFP/HSP profiles, to allow using the integrated microphone from headsets and earbuds

  • Currently only available to select in Desktop mode

• Added battery level display for supported Bluetooth devices

• Include a bugfix for the Airpods when using the AAC codec

• Bluetooth controllers can now wake LCD units from sleep, previously only available on OLED models

  • Known issue: Bluetooth LE based controllers are not currently compatible with bluetooth wake on LCD models

Steam Deck Dock

• Made compatibility improvements for certain displays including TCL FireTV models and Dell VRR capable monitors

Graphics and Performance

• Enabled AMD P-State CPU frequency control

• Fixed a performance regression for No Rest for the Wicked

Desktop

• Updated to Plasma 6.2.5 (previously 5.27.10) - see the big changes in Plasma 6 here[kde.org]

• Surround sound now works correctly

  • Enabling the setting is currently only available via Desktop mode

• KDE Filelight is now installed by default for disk usage visualization and low disk space notifications

• Speed and robustness improvements when switching between desktop and game mode

  • Fixed a common cause of hangs when switching to desktop mode

  • Fixed some cases where Steam could take up to ninety seconds to exit on shutdown or switch to desktop

• Added 'gocryptfs' support to desktop session to enable use of the Plasma Vaults feature

Misc

• Fixed some cases where "filter-chain" or other virtual sound devices would erroneously appear in the UI

• Fixed cases where applying system updates could fail if certain configuration files were corrupted or malformed

• Various enhancements to System Report functionality for support and troubleshooting

• Fixed compatibility issue with certain DNS servers causing very slow domain lookups

• Improved responsiveness of system when running into out-of-memory crash situations

• Enabled IPv6 Privacy Extensions by default

Known Issues

• Creative Zen Air Pro earbuds display an unexpected all-zeros entry under the "Show all devices" section when pairing

• Super NES controllers can erroneously show up as connected when they are not

• DualShock 3 controllers are currently not able to be paired or used

Developer

• Updated to a 6.11 based kernel

• Added debuginfod URLs for SteamOS

• Added systemd .socket units to the default list of /etc files preserved across updates

• When running in a VM, system will now default to the desktop session

• Swap file setup now uses standard 'mkswap' functionality instead of shipping an ad-hoc 'mkswapfile' script

• The steamos-readonly command now warns that the status might not be accurate when sysexts are loaded

• Fixed a case that could introduce duplicate boot entries for devices manually setup to dual-boot

• The pacman cache is now cleaned after applying a SteamOS update

  • Fixes stale cache errors working with pacman after switching branches