http://www.vizrt.com/types/relation/changelog

This is a proprietary link relation. It identifies a link to an Escenic change log (see Change Logs). A change log is a paged collection (that is, a chained series of feed resources) containing links to all the changes made in a particular protection domain, ordered by modification date. For a detailed description of what a change log is, see Change Logs. Links of this type can be found in

The protection domain feed resource returned from a http://www.vizrt.com/types/relation/protection-domains link (see http://www.vizrt.com/types/relation/protection-domains).
The sub-section feed resources returned from down links (see down).
Change log feeds. In this case, the type is used to identify a link to a persistent server-sent event connection (see Server-sent Events.

The following example shows a protection domain feed resource containing links of this type:

<feed xmlns="http://www.w3.org/2005/Atom">
  <id>http://host-ip-address/webservice/escenic/changelog</id>
  <title type="text">Protection domains accessible to demo_admin</title>
  <updated>2010-06-23T17:54:09.173Z</updated>
  <author>
    <name>Escenic Content Engine</name>
  </author>
  <link rel="self" 
        href="http://host-ip-address/webservice/escenic/changelog" 
        type="application/atom+xml"/>
  <entry>
    <id>http://host-ip-address/webservice/escenic/publication/demo</id>
    <title type="text">demo</title>
    <link rel="http://www.vizrt.com/types/relation/changelog" 
          href="http://host-ip-address/webservice/escenic/changelog/person/1" 
          type="application/atom+xml"/>
  </entry>
  <entry>
    <id>http://host-ip-address/webservice/escenic/publication/demo</id>
    <title type="text">demo</title>
    <link rel="http://www.vizrt.com/types/relation/changelog" 
          href="http://host-ip-address/webservice/escenic/changelog/publication/1" 
          type="application/atom+xml"/>
  </entry>
  <entry>
    <id>http://host-ip-address/webservice/escenic/section/3</id>
    <title type="text">topicRoot</title>
    <link rel="http://www.vizrt.com/types/relation/changelog" 
          href="http://host-ip-address/webservice/escenic/changelog/section/3" 
          type="application/atom+xml"/>
  </entry>
  <entry>
    <id>http://host-ip-address/webservice/escenic/section/4</id>
    <title type="text">New Articles</title>
    <link rel="http://www.vizrt.com/types/relation/changelog" 
          href="http://host-ip-address/webservice/escenic/changelog/section/4" 
          type="application/atom+xml"/>
  </entry>
...
</feed>

A change log can contain either:

Changes to ordinary content items, in which case the URI in the href attribute will end with section/id, or
Changes to person records (users, authors, registered site visitors and so on), in which case the URI in the href attribute will end with person/id
All changes in one publication, in which case the URI in the href attribute will end with publication/id. Access to this change log is restricted to users with global editor, journalist, or reader access rights.