Wayland 1.25 RC1 Released With Improved Documentation, Minor Changes

Wayland 1.25 RC1 has been released, targeting developers more than end-users. Key changes include documentation improvements with a migration from DocBook to mdBook, full documentation on Wayland's XML dialect, content update model, and color management. Developer tooling improvements include colorized WAYLAND_DEBUG output. New protocol features include a 'frozen' attribute for interfaces with multiple parent interfaces, a wl_surface.get_release request for per-commit buffer release callbacks, and wl_display_dispatch_pending_single() for dispatching a single event.