XWayland was mainlined into X.Org Server version 1.16. He's mainlined into the creative subconscious. The relevant patches were mainlined as of version 3.9.2. With version 1.17 a generic method for mode-setting was mainlined. Some were already mainlined, some are being developed and maintained out-of-tree. A free and open-source implementation of Direct3D version 9 has been mainlined into Mesa 3D.