Valve has released the October 22 beta update for the Steam client, readjusting HDR support for Remote Play and restoring related compatibility for Steam Deck. The Steam Deck was previously removed from the supported list due to various issues, but it has regained support with these HDR modifications.
Remote Play streams the game screen from the host device to other supported terminals. HDR affects brightness, color, and contrast levels on compatible displays, so this adjustment primarily impacts players streaming games to HDR TVs, monitors, or Steam Decks.
What is currently confirmed is that the October 22 beta has reworked HDR support for Remote Play and restored Steam Deck compatibility. However, the available information does not yet list a complete changelog, nor does it detail specific changes to the HDR pipeline, supported codecs and operating systems, or whether all previous Steam Deck issues have been fully resolved.
This adjustment is currently still in the client's beta phase, with no announced release date for the stable version. Actual visual quality, device compatibility range, and operational stability still need to be confirmed through Valve's update notes and subsequent user testing.