Question: URL for #FHIR Version

Apr 6, 2020

Question:

Is there a URI form for specifying FHIR versions? For example, ‘r4.fhir.hl7.org’ I see https://www.hl7.org/fhir/valueset-FHIR-version.html contains a list of numbers for versions, but I was wondering about the specific URI like form. For example, an external system that may not only interact with FHIR servers would need to use that URI to determine that: a) the server to invoke is a FHIR one; and, b) the version is r4. (this may happen before reading the capability statement in the execution workflow)

Answer

Well, we haven’t publicised it anywhere, but this URL would be the version URL:

http://hl7.org/fhir/4.0

It happens to work, too. As do these: