Ubuntu MATE 15.04 Alpha2 is now available for download. This release builds on Ubuntu MATE 14.04 and 14.10 and introduces some new features.
Source Ubuntu MATE Release Notes: https://ubuntu-mate.org/blog/
What changed since the Ubuntu MATE 14.10 release?
And many more improvements.
Please visit the Ubuntu MATE Download page to get started.
Please Visit the Ubuntu MATE Team on Google+