Currently the MIR has a unique constraint on the combination of version and MRN in the Service entity type, which consequently allows several service entities to have the same MCP MRN, which is a violation of the specification.
In order to not break backwards compatibility for existing services the Service type will continue to have the version field, but for any new services being created it will not be allowed to give this a value.
Currently the MIR has a unique constraint on the combination of version and MRN in the Service entity type, which consequently allows several service entities to have the same MCP MRN, which is a violation of the specification.