Getting Started with Apache NiFi Registry
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Start Version Control on a Process Group

NiFi can now place a process group under version control.

Right-click on a process group and select "Version→Start version control" from the context menu:

The local registry instance and "Test" bucket are chosen by default to store your flow since they are the only registry connected and bucket available. Enter a flow name, flow description, comments and select "Save":

As indicated by the Version State icon () in the top left corner of the component, the process group is now saved as a versioned flow in the registry.

Go back to the Registry UI and return to the main page to see the versioned flow you just saved (a refresh may be required):