Compatibility with the Group module

It seems that group revisioning has been added to Group 1.3+.

https://www.drupal.org/project/group/issues/2829966#comment-14170977 →

Is it possible that have a dashboard (with content plannenr/kanban) per group in the 2.x version of content planner?

We won’t support the groups module.

Group module does support revisions now: https://www.drupal.org/project/group/issues/2829966#comment-14169651 →