Valve has released the SteamOS 3.9 update, which is now available for stable users on the Steam Deck, Steam Machine, Steam Frame, and compatible third-party hardware. This update features a rebase to the Linux kernel version 7.2 and an upgrade to KDE Plasma 6.7.3 in Desktop Mode, enhancing security and battery life for the handheld device. Additionally, the update addresses a security issue related to compromised eMudhra CA certificates and fixes various bugs affecting WiFi connections and game crashes. Overall, the update is a significant improvement that combines months of beta testing and includes new features like preliminary hibernation support and better battery management

SteamOS 3.9 Update Ships with Linux 7.2, Plasma 6.7.3 and Idle Battery Boost

Valve shipped SteamOS 3.9 to stable users, landing across the Steam Deck, Steam Machine, Steam Frame, and compatible third-party hardware. The update rebases the Linux kernel on version 7.2 and bumps KDE Plasma to 6.7.3 in Desktop Mode, while also improving idle battery life on the handheld. It adds early hibernation support (gated behind a driver bug on the Deck), fixes a wide range of WiFi, display, and game crashes, and improves Steam Frame wireless adapter support. A key part of the release also revokes the compromised eMudhra CA certificates tied to the late-October security scandal.

SteamOS 3.9 Update Ships with Linux 7.2, Plasma 6.7.3 and Idle Battery Boost @ Linux Compatible