SteamOS 3.8 brings new Steam Machine hints and prepares Valve’s OS for more handhelds

Valve officially released SteamOS 3.8 on June 18. After several months of beta testing, the update arrives as one of the most comprehensive SteamOS releases in recent years. In addition to numerous improvements for the Steam Deck, Valve is expanding support for third-party handhelds while also dropping fresh hints about potential Steam Machine hardware.

SteamOS 3.8 modernizes the technical foundation and desktop mode

The update introduces a modernized Arch Linux base and Linux kernel 6.16. Users should benefit from broader hardware support, improved stability and more efficient power management. Valve has also upgraded desktop mode to KDE Plasma 6.4.3 and made Wayland the default display protocol. The aim is to bring desktop mode closer to the responsiveness and performance of Gaming Mode. Support for HDR, VRR, external displays and TV scaling has also been improved.

While these changes may sound rather technical, SteamOS 3.8 also brings several practical improvements. Updates should now install faster, Wi-Fi connections should be more reliable, HDMI audio detection has been improved and mono audio has been added as an accessibility feature. Valve has also fixed issues affecting individual games such as Star Wars Jedi: Survivor, Starfield and SpongeBob SquarePants: Titans of the Tide. Remote Play, game recording and screen casting through applications such as OBS and Discord have also received improvements.

Improvements for third-party handhelds

Valve is no longer focusing solely on the Steam Deck. SteamOS is increasingly being adapted for handheld gaming PCs from other manufacturers. Devices mentioned in the update include models from the Lenovo Legion Go, ASUS ROG Ally, MSI Claw, GPD and OneXPlayer families. Among other things, Valve is improving controller support, gyro controls, automatic screen rotation, SD card stability, Bluetooth compatibility, GPU stability and power management. Input latency has also been reduced on some handhelds.

This is particularly interesting because many Windows-based handhelds offer plenty of power but often feel more like miniature gaming PCs than true consoles in everyday use. SteamOS could help close that gap: turn on the device, launch a game and start playing – without dealing with Windows quirks, driver issues or desktop maintenance.

Steam Machine hints spark speculation

According to Valve’s patch notes, SteamOS 3.8 also includes initial support for Steam Machine hardware. While the company has not provided any further details about the living-room PC, the wording alone has been enough to reignite speculation. On Reddit, many users see the update as another important preparatory step toward the launch of the Steam Machine. Recent SteamDB updates to Steam Machine-related package entries have further fueled the rumors. According to a leaker, Valve could officially unveil the Steam Machine as early as June 23, 2026.