Valve's Arch Linux-based SteamOS just got a substantial modernization under the hood. The 3.8.10 release, now promoted to the stable channel after a long stretch in beta, moves the platform to the Linux 6.16 kernel and refreshes a wide swath of the underlying Arch package set. The desktop mode also jumps from KDE Plasma 6.2 to Plasma 6.4, and Wayland is now the default session, with X11 still available for anyone who needs it.
The biggest change on the hardware front is initial support for Valve's upcoming Steam Machine, the living-room desktop that will run the same OS as the Steam Deck. SteamOS 3.8 also brings Steam Controller improvements, expanded controller and handheld compatibility, and seamless boot fixes for newer AMD hardware, the same Radeon graphics lineage that powers the Deck's APU.
Gamers running the release get a handful of meaningful additions to the gaming experience. SteamOS 3.8 wires in support for the LAVD CPU scheduler, a latency-aware sched_ext scheduler aimed at keeping frame times consistent under load. There's preliminary HDMI VRR support and improved VRR frame pacing, better screencasting inside game mode, updated firmware, and a round of audio fixes.
The update is free and rolls out through the stable channel to existing SteamOS devices. The complete changelog is posted on the Steam community announcement page.
