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 more recent Arch Linux base
- Improved pairing experience with Apple AirPods
- Improved session recovery speed after GPU crashes
- Fixed some connectivity failures with access points supporting WPA3 security
- Updated Linux kernel to version 6.5
- Improved speed of subsequent OS updates
- Improved reliability of certain microSD card usage scenarios
- Fixed game session cursor offset alignment
- Worked around misdetection of some SanDisk microSD cards
- Fixed an issue where a thin grey line could appear at the bottom of the screen during boot in some situations
- Fixed an issue causing temporary files to accrue when using Flatpak
- Enabled support for Bluetooth A2DP and BAP profiles
- Improved connection speed of some Bluetooth devices
- Improved performance and stability in memory pressure situations
- Fixed an issue where the Performance Overlay would spuriously enable itself under certain conditions
- Added mechanism to configure which Bluetooth device categories are allowed to wake the system from suspend
- By default, controllers are the only devices that can wake the system from sleep
- Finer-grained UI configuration options will be available as part of a future update
Display
- Improved display uniformity, under some conditions (Mura Compensation)
- Improved display color balance (reduced green tint) at lower brightness levels, under some conditions
- Improved gamma uniformity (yellow tint), under some conditions
Graphics and Performance
- Updated graphics driver to Mesa 24.1, with many performance and correctness improvements
- Improved responsiveness of the Steam UI
Desktop Mode
- Updated to KDE Plasma 5.27.10
- Enabled thumbnail previews for videos in the file browser
- Fixed an issue with desktop use that could cause subsequent microSD card auto-mount to fail
Deck Dock
- Added support for some HDMI CEC features:
- TV remote input
- TV wake up
- TV input switching
- Updated Dock firmware, with compatibility fixes for high-refresh-rate VRR displays
BIOS
- Added overclocking controls on Steam Deck LCD
- Fixed not being able to set the SDCard as default boot device
- Adjusted power LED slow charging threshold
- Fixed spurious power LED blinking in S5
Development and Modding
- Modified files in /etc are now migrated to new OS versions based on a whitelist
- Fixes numerous issues with incidentally touched /etc files becoming ‘sticky’ and persisting unexpectedly
- Additional whitelist entries can be added via config fragments
- See /etc/atomic-update.conf.d/example-additional-keep-list.conf
- Added /etc/previous/ containing modifications from the previous update to prevent unexpected data loss
- Up to five previous snaphots of /etc modifications will additionally be retained in /var/lib/steamos-atomupd/etc_backup/
- Added support for {ssh,sshd}_config fragments
Known Issues
- Frequent session switches can result in the sound driver crashing, needing a system reboot
