|Oracle Workflow Developer's Guide|
Part Number B10284-02
The following Workflow objects support versioning:
When you modify any of these objects in the Workflow Builder and save them to the database, the Workflow Loader does not update the existing definition of the object. Instead, a new version of the object or owning object is created.
As a result, you can modify any of these objects without affecting active work items that were initiated before the change.
The modifications in all of these examples will affect only work items that are initiated after the changes are made.