MATE 1.16 Ready For Release, More GTK2 GNOME-Forked Code Ported To GTK3
MATE 1.16 is being released in time to hopefully make it in Ubuntu 16.10 and Fedora 25, which are among the goals for this release. During MATE 1.16 development that began following MATE 1.14 in April, there's been more porting of GTK+ 2 code to GTK+ 3.
The MATE Notification Daemon, Polkit, Session Manager, Terminal, and other components are among the components that saw a port to GTK3. The MATE developers' first focus is on porting to GTK3 so they can then focus upon Wayland support, HiDPI, and porting to other modern GNOME libraries.
Some of what's been accomplished or not this cycle is outlined via the MATE Roadmap.
No official MATE 1.16 desktop has hit the wire yet, but if you are anxious to play with this latest code you can find v1.16 via the MATE Git repositories.