Last Wednesday, I installed Cura 4.0 on all the class laptops and the PC next to the printers.  I left version 3.6 on all the machines for those who do not like change.

There is only a small change in the interface.  Instead of two tabs (Prepare and Monitor) there are now three (Prepare, Preview and Monitor).  They removed the little view pull down menu next to the machine name.  There are behind the scene bug fixes but it feels the same except that the material selection is in the center.

I will not be updating profiles for the 3.6 version and will only support the new version from now on.