[Answered ]-Where is the django CMS history tab?

The History entry on the toolbar was removed as of django CMS 3.4.

This was because the revisions (history) implementation had a lot of shortcomings.

As an initial replacement, we’re releasing a new app which allows users to undo/redo plugin operations and in the future we will extend this app to support revisions (restore).

Last, the Revert to live entry will come back in django CMS 3.4.2

Edit

Here’s the djangocms-history app.