Change the element definition from: The date (and optionally time) when the value set was created or revised (e.g. the 'content logical definition'). To: The date (and optionally time) when the value set metadata or content logical definition (.compose) was created or revised.  Change the element comment text from: Note that this is not the same as the resource last-modified-date, since the resource may be a secondary representation of the value set. Additional specific dates may be added as extensions or be found by consulting Provenances associated with past versions of the resource. To:    Note that this is not the same as the meta.lastUpdated which is specific to an instance of a value set resource on a server.  Additional specific dates may be added as extensions or be found by consulting Provenances associated with past versions of the resource.