I just updated to Sketchup 16.1.1451. I immediately noticed a display problem. I operate my Mac display at a slightly lower resolution to give larger type. This is configured in the System Preferences Display section. The latest version of Sketchup does not scale properly and some information is off the screen. If I switch display resolution to the default resolution for the retina display, Sketchup display is scaled properly and all information is present on the screen.
I do not see any configuration parameters to fix this. Since it just showed up with the new version, i assume its a bug in the new version.