The Linux Mint distribution has published their June development summary that most notably includes work on Cinnamon's Wayland support where it's now ready to graduate.

Beginning with the next Cinnamon release, Wayland support will no longer be considered "experimental". Cinnamon for now intends to continue both fully supporting X11 and Wayland. They noted in the June summary:

"We worked really hard on Wayland and we got to the point where it feels solid and the experience is almost on par with X11. Wayland support will no longer be considered “experimental”. In the next version of Cinnamon, both X11 and Wayland will be fully supported."

Some of the work they accomplished for Wayland includes proper mapping for new windows / menus, proper focus stealing prevention, addressing more Wayland crash scenarios in Cinnamon, improved multi-monitor support, hardware acceleration improvements, full HiDPI, window progress, session fixes, and more.

Linux Mint developers also made Cinnamon improvements outside of the Wayland paths, such as now supporting systemd's graphical-session and Muffin now rounding coordinates and dimensions for all Clutter actors.

More details on these latest Linux Mint / Cinnamon improvements made over the past month can be found via the Linux Mint blog.