SteamOS 3.9.5 updates KDE Plasma and improves device support

Valve released SteamOS 3.9.5, an update to its Arch-based Linux gaming OS for Steam Deck and Legion Go S. The release refreshes KDE Plasma and improves game compatibility and device support, including newer AMD GPUs and external displays.

• Update touches KDE Plasma and core SteamOS components
• Improved game compatibility and peripheral support
• Officially supported devices remain Steam Deck and Legion Go S
• Newer AMD GPUs need SteamOS 3.8 or newer recovery image