This release adds support for extensions on primitive types. I.e. it adds support for "sunder" fields like _status (sibling of status).
See http://hl7.org/fhir/R4/json.html#primitive for more details.
Example:
{
"birthDate": "1970-03-30",
"_birthDate": {
"id": "314159",
"extension": [{
"url": "http://example.org/fhir/StructureDefinition/text",
"valueString": "Easter 1970"
}]
}
}
These fields will be in the resulting schema if they are present in the input rows, else they will be left off.