GNOME 3.12 Might Be Delayed for Beginning of April Because of Wayland 1.5

However, the bad news (for GNOME developers) is that all the GNOME 3.11.x milestones will be delayed as well in order to avoid longer freeze periods. As you might know, GNOME 3.12 will be the first ever release of the controversial GNOME desktop environment to fully support the modern Wayland display server.