Kubuntu 25.10 will not ship with an X11 desktop session on its ISO, following Ubuntu's lead. An X11 Plasma session will remain available for manual install.
Ubuntu 25.10 drops GNOME Xorg support, moving to Wayland-only desktop sessions. Learn what's changing, who's affected, and what to do about it.
Ubuntu 18.04 LTS will come with the Xorg display server enabled by default. Canonical cites stability and reliability concerns over Wayland as reason for the change.
Mark Shuttleworth announced on his blog today that Unity will be embracing the X Window System replacement Wayland, the OpenGL based display management system. And yes, this is very important news.