Updating FHIR Resources

What happens when an update is made to a a particular resources (with additional information; information is deleted)? Does the FHIR Resource ID (URI [URL]) change every time there is an update made?

Secondly, if at any given time data is uploaded to the FHIR server which is associated with i.e: 7 different resources but only 3 are being updated how does that effect the resource ID (URIs)?

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Resource ids (and thus their URL) are not changed on a PUT (update). However the resource’s meta.version does change. Depending on the capabilities of the server, previous versions might be accessible using the vread and/or history operations.

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