# SteamOS 3.9.4 Beta rebases on Linux 7.2, adds hibernation work and Legion Go 2 support

> **Key takeaway:** Valve's SteamOS 3.9.4 Beta moves to a Linux 7.2 kernel, introduces preliminary hibernation support, and adds fixes for newer hardware including Legion Go 2 and Intel Panther Lake CPUs.

**Published:** 2026-10-22T03:41:55+00:00 
**Source:** Valve Steam Deck Official News 
**Category:** open-gaming 
**Canonical URL:** https://fosswire.org/news/steamos-394-beta-rebases-on-linux-72-adds-hibernation-work-a.html 

## Summary
Valve released SteamOS 3.9.4 for Beta and Preview channels, rebasing the system on Linux 7.2 and updating Desktop Mode to KDE Plasma 6.7.3. The update includes preliminary hibernation support, though it remains disabled on Steam Deck due to driver bugs. Hardware support expands to include Legion Go 2 brightness control and fixes for Intel Panther Lake CPUs. Multiple regressions from earlier 3.9 previews are resolved, including screenshot resolution and app rendering issues.

## What's new in SteamOS 3.9.4
- **Kernel**: Rebased on Linux 7.2, up from an unspecified earlier version
- **Desktop environment**: Plasma 6.4.3 → 6.7.3 in Desktop Mode
- **Hibernation**: Preliminary kernel support added; interruptible hibernate requests implemented; disabled on Steam Deck due to outstanding driver bugs
- **WiFi**: New installations default to wpa_supplicant instead of iwd; fast reconnect on resume added to wpa_supplicant
- **Disk encryption**: Experimental dirlock support improved
- **Branding**: `steamos-*` packages renamed to `holo-*` with backward-compatible aliases
- **VM support**: Improved virtio-gpu and venus accelerated graphics for guest installations

## Why it matters
The Linux 7.2 rebase and wpa_supplicant switch may improve compatibility for SteamOS installations beyond Valve's own hardware. However, hibernation delays on Steam Deck suggest the feature remains experimental for handheld users.