How does version control works in Dossiers?

the article provides an introduction to the versions control in Dossiers

Dossiers automatically manage versions ensuring that all changes you do on a dossier can be tracked.  Version control works in conjunction with the dossier statuses so that only one version has status PUBLISHED at a given time. 

Let's see a scenario: there is a published dossier that contains Japan regulatory analysis, today one of the pinned regulations change, you can edit the dossier which automatically creates a new version with status UNPUBLISHED until you decide to publish it. Moreover, at any point in time, you can browse through versions and restore old versions if needed.