The following features are new in Mudbox 2019.1. For the list of what's fixed, see the Mudbox 2019.1 Release Notes.
Automatic Interface Scaling
Mudbox now automatically rescales the user interface based on the resolution of your monitor to accommodate high-resolution 4K monitors. As a result, Interface Scaling settings in the Mudbox Setup window and the User Interface Preferences have been removed.
Note: If you are using a 4K monitor and you find that the automatic upscaling is creating blurred text and icons, a workaround exists where you can append a -noupscale flag to the Mudbox.exe string and disable the interface scaling. See
Blurry icons or text on 4K monitors for more information.