With no one willing to step up and manage the X.Org Server 1.21 release and see it through for maintenance, Red Hat engineers who often managed those xorg-server releases are now moving ahead with standalone XWayland releases with that code pulled out of doing a full X.Org Server release and instead isolated to the XWayland bits for handling of X11 clients under Wayland. Today marks the inaugural release with XWayland 21.1.0…

Source: Phoronix – XWayland 21.1 Standalone Released To Offer Better X11 Client On Wayland Experience