SteamOS 3.9.5 ships with Linux 7.2, hibernation prep, and Legion Go 2 support

SteamOS 3.9.5 is now available for all Steam Deck and Steam Machine users, marking the first stable release since the 3.8 series. The update moves the underlying Arch Linux base forward and rebases the kernel on Linux 7.2. Notable additions include preliminary hibernation support—still not exposed in Game Mode—and expanded compatibility with third-party handhelds including the Legion Go 2.

What's new in SteamOS 3.9.5

• Kernel: Rebased on Linux 7.2, up from the previous 6.x series in SteamOS 3.8
• Hibernation: Preliminary kernel hibernation support added, with interruptible hibernate requests and driver fixes; blocked on Steam Deck by an outstanding driver bug, not yet in Game Mode UI
• WiFi backend: Default switched from iwd to wpa_supplicant for broader compatibility; fast reconnect on resume backported to wpa_supplicant
• Desktop Mode: Plasma updated from 6.4.3 to 6.7.3
• Branding: steamos-* scripts and packages renamed to holo-*, with backward-compatible aliases
• Virtualization: Improved virtio-gpu and venus support for VM guests with accelerated graphics
• Android binder IPC: Reintroduced after previous removal

Why it matters

The Linux 7.2 rebase and hibernation work signal Valve's continued investment in SteamOS as a general-purpose Linux distribution beyond the Steam Deck, while the Legion Go 2 additions and VM improvements suggest broader hardware ambitions.