Versioning
Form definition versioning support
Since Orbeon Forms 4.5, Form Runner and Form Builder support versioning of form definitions.
For details, see Versioning.
Legacy support
Even prior to Orbeon Forms 4.5, when retrieving form.xhtml, Form Runner passes a URL parameter:
This parameter is passed when:
editing form data
viewing form data
producing a PDF
This parameter is NOT passed when no document information is available, e.g. when:
creating new form data
listing form data on the summary page
The value of the parameter is the id of the form data (document) being edited. This allows the persistence layer to retrieve the form definition associated with that document, in case the persistence layer handles versioning itself.
Auditing trail
In addition to explicit versioning of form definitions, the relational database implementations support an auditing trail, keeping older versions of form definitions and form data. However this is not visible at the level of the REST API.
See also
Blog post: Form versioning
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