The Qt5 installers need more testing. The Qt5 version seems to be working for the hand full of beta testers that have tried it. It is unknown if the Qt5 installation will run on all of our customers Linux installations. We had to build this installer on a slightly newer version of Linux and it references more Linux library code. Also, we don't know whether there will be Window manager issues. In the future, we will either make both installers available from the website or just switch to the Qt5 version. No dates set.