We'll add patch as tested in the connectathons. >If you update a field in the narrative, do you need to replace the narrative as well? Server shall ensure the narrative is not clinically unsafe. In the spec we'll provide suggestions to ensure that. >How should a server specify it supports XML vs JSON patch? Add two fields to CapabilityStatement called 'patchFormat' and 'patch'. > How should a server specify it supports conditional Patch (If-Match header)? Servers SHALL support conditional PATCH (if they support PATCH) Prefer header applies as usual. > Need to provide examples for XML with namespaces - this was a complication for those implementing and testing XML Patch, would be nice to call attention to this. We'll provide lots of examples.