MATE 1.18 Desktop Released, Finished Porting To GTK3
The MATE 1.18 development cycle focused on finishing the conversion from GTK2 to GTK3. With MATE 1.18, GTK3 is the only tool-kit API supported and needs at least GTK+ 3.14.
MATE 1.18 also adds support for libinput, much improved accessibility support, new features for the file manager, lock screen improvements, MATE Panel improvements, deprecated UPower for ConsoleKit2, and a wide range of other improvements.
More details on MATE 1.18 via MATE-Desktop.org.