I took this Sunday morning to rebuild all MATE packages for both mix build GTK+2/3 and fully GTK+3 build and upload it to the testing playground as usual. They are built against Slackware Current latest batch of update per Sun Jun 26 01:28:27 UTC 2016.
It's been a while since i update the content of the repository and since Patrick upgrade poppler, it broke Atril, so instead of just rebuilding Atril, i decided to rebuilt everything from scratch. It's also a good drill to make sure the build is fine.
Once Slackware 14.2 is released, a new branch (14.2-mate-1.14) will be created and future update of MATE 1.14 will be built from this branch. Master branch will then follow the next development cycle of MATE which will lead to MATE 1.16. Several interesting changes have been merged and you can see them in their ROADMAP. We will see more GTK+3 porting in MATE 1.16 and it's likely that MATE 1.16 will be out this year as it tried to follow Fedora and Ubuntu's release schedule.