Backward compatibility is not given about vehicleinterfaces

[harmanpa]

If we are strictly observing Semantic Versioning then I can see that the numbering 1.2.1 -> 1.2.2 is not correct, however:

• the classes removed were only used internally for visualisation. Technically they should have been marked protected (hence could have been removed without changing any public interfaces) but I don't believe they were.
• the classes removed were not compatible with the Modelica Language Specification, and therefore ensured that the library would not function in any tool other than Dymola. Maintaining such a status until a "later release" is not feasible for commercial use of a library.
• the library was checked in Dymola to ensure behaviour had not changed. Since Dymola was the only tool that would be affected by backwards-compatibility, since other tools could not support the library, this seems a sufficient test.

[tobolar]

I agree fully with point 2 and understand 3. In contrast, the internal usage of the classes is only an assumption.

But maybe this bother only myself because I have used that classes for my visualization classes (already modified them).