GNOME Mutter 47.rc Ships Experimental Color Management Protocol

Ahead of this week's GNOME 47 release candidate announcement the "47.rc" versions of the GNOME Shell and Mutter were tagged on Sunday.

Most notable with the Mutter 47 release candidate is now having experimental color management protocol support in place! The various merge requests around plumbing color management support into the Mutter compositor as well as Wayland color management protocol support for sRGB and PQ+BT.2020 have been merged. This is with Wayland's xx-color-management-v4 protocol and with Vulkan VK_hdr_layer support can be used for running Vulkan games and apps like MPV with HDR videos or HDR UIs for apps. It's experimental Wayland color management for the GNOME 47 release but nice to see it being merged in time.

The Mutter 47.rc release also merges Cally into Clutter, fixes drag and drop between X11 and Wayland clients, fixes EGLDevice support for old NVIDIA drivers, improves cursor smoothness under load, initial PipeWire explicit sync support, scaling-aware XWayland clients can now scale themselves, and a variety of other fixes.

More details on the GNOME Mutter 47.rc changes via this Git tag.

Also tagged on Sunday was GNOME Shell 47.rc with various fixes.

The GNOME 47 release candidate will be formally announced soon while GNOME 47.0 stable should be out on 14 September.