Relese 6.8.0 Graphic3d_Group protected constructor

I am trying to port from 6.7.1 to 6.8.0 and have multiple compiler errors, one in particular i failed to resolve:

New release has switched Graphic3d_Group constructor from public to protected but user guide still states the old usage.

I understand that opencascade is free but is it necessary to break compatibility on every release with out even mentioning it in the release notes?