Well, was out yesterday =)

With lots of improvements, like using user color schemes in the default shell theme (Breeze):

(I personally prefer Oxygen though)

Progress indicators in task bar entries:

"Jump lists", launch a program directly in one mode or another:

And much, much more.

Coming soon to a GNU distribution near you \o/

https://dot.kde.org/2016/03/22/kde-plasma-56-release