Hi Michael,
Here 2 screen shot of ma y Imac Retina 5K
my first try on In V4 beta :
- name of view panel is very little
- can't open several documents simultaneously
- fillet and chamfer don't run
- all tools don't run (revolve, extrude, loft) > calculating in loop

PS : if you need some others screenshots, don't hesitate to ask me.
Thanks
JP