Canonical’s Kevin Gunn has recently announced that Unity 8 has received updates and enhancements, including UI improvements, code cleanups and better multi-monitor support via QtMir, LXC support for Xapps, work for the launcher parity has been done, some features landed in the Slim greeter, the preparations for implementing the Vulkan API from the Khronos Group have been made.
Also, the LXC for Xapps technology that permits the X11 apps packed as DEB files to run in sandboxes, on top of Unity8 and Mir received enhancements as well.
As you may know, Unity 8 and Mir are Canonical’s future-generation desktop environment and display server and are present by default only on Ubuntu Touch, which is the mobile version of Ubuntu, and Ubuntu Desktop Next, a bleeding edge Ubuntu Unity flavor that is the first system to adopt the new technology.