While the button in the top-right of a Simulink diagram is engaged, MATLAB will mirror the selections you make in DiffPlug.
This link is optional, and all other features of DiffPlug will continue to work without a MATLAB license.
The Simulink differ now ignores the order of Simulink properties, which greatly reduces the comparison noise introduced during MATLAB version upgrades.
The differ still respects the order of Array nodes, for which order matters.