Linchpin Navigation Menus offers a backup functionality to track saved versions and restore older versions. Every time you save the menu structure, a backup will be created. You can list all created backups by choosing "History" in the "⋯" menu. Click on "Apply" next to any history entry to restore a specific backup to the edit form. Please note that you still need to save the restored backup.

Rows marked with a
represent published menus, the others are unpublished menu drafts.