Revisions
Revisions are validated configurations of a workflow object at a given point in time
on routings, operations, and phases.
You can update the routing or a sub-level component (operation or phase) until it is used in production for the first time. When this phase, operation, or routing revision is used in production, it is locked and cannot be edited.
When updating the workflow object, you must revise its configuration before changing its components or transitions.
Previous revisions remain available and are still usable on existing routings and therefore critical to ensure revisions still provide the same output if upgraded in a phase, operation, or routing.