SteamOS 3.8.15 has just been released for all users with the following changes:

General

• Fixed an issue preventing enabling HDR in Assassin's Creed Black Flag Resynced

• Fixed an issue that would result in degraded performance in some cases when composition was required (such as when having FSR enabled)

• Security and stability improvements

We have just shipped an updated Steam Client to the Preview/Beta channel.

Remote Play

• Removed unused codec settings option.

We have just shipped an updated Steam Deck Client to the Preview/Beta channel.

General

• Fixed mouse cursor changing to resize cursor at screen edges.

Steam Workshop

• Fixed issue with games with older Steam Workshop integration where subscribed item files would be duplicated in different directories.

Steam Machine

• Added 'Great on Machine' section to the Library

We have just shipped an updated Steam Deck Client to the Preview/Beta channel.

Steam Workshop

• Re-worked system that managed what subscribed items needed to be updated.

Remote Play

• Fixed mouse coordinates for input-only streaming

• Fixed very low refresh rate on some systems, introduced in the last beta

Steam Machine

• Show Steam Machine Verified information on the game capsules in home, and on the game details screen.

We have just shipped an updated Steam Deck Client to the Preview/Beta channel.

General

• Fixed a case where the 'Patch Notes' preview box in Settings->System would incorrectly show an event for the wrong channel. E.g. showing Beta Channel notes when the client is opted in to the Stable Channel.

Desktop Mode

• Fixed incorrect UI scale being used when in Big Picture Mode.

Steam Input

• Added support for both the wired and wireless versions of the PDP Afterglow Wave Controller for Nintendo Switch

• Added support for Turtle Beach controllers for Nintendo Switch 2

Remote Play

• Added 59.94 FPS as an available framerate limit

• Reduced frame drops when the framerate limit is set to automatic

• Fixed overloading the client video decoder when unlimited bandwidth is enabled

Steam Controller FW

• Fixed an issue with occasional repeated button presses on the B Button