This feature keeps track of changes to your Knowledge Graphs by creating change set data based on the user's editing activities.
If enabled on a graph, all changes using shaped user interfaces will be tracked in the configured Versioning Graph.
To enable this feature on a specific graph you need to setup the following steps.
In Exploration, create a new graph and define it as a Versioning Graph.
In Exploration, edit this graph and add the Versioning Graph property to select the newly created Versioning Graph.
For each editing activity (→ Save a Form), a ChangeSet resource will be created. This resource has some metadata (user, timestamp, label) as well as links to added and deleted Statements (using RDF Reification).
The details of the used vocabulary are available at Changeset Vocabulary page.