In 83 we have a new capability to perform the same operations that you could always perform on individual objects on sets of objects.

Example

Posting the following to the record endpoint will add a jurisdiction to both records REC_307 and REC_308

{
    "Q":{"q":"number:REC_307,REC_308"},
    "ChildJurisdictions":{
        "RecordJurisdictionJurisdiction":"9000000007"
    }
}