title: What is the jenkins /changes page?
body: <p>When a Jenkins jobe builds it comes with a changes page located at <code>https://jenkins.server/jenkins/job/job-name/changes</code>.</p>
  
  <p>I know <a href="https://stackoverflow.com/questions/33549206/jenkins-changes-link">the purpose is</a> to display SCM / git changes but what exactly <em>is</em> it?</p>
  
  <p>Is it a plugin, or part of a plugin? Does it have an 'official' name? Is there documentation for it?</p>
  
  <p>I've seen it called multiple names:</p>
  
  <ul>
  <li>/changes page</li>
  <li>SCM changes page</li>
  <li>Jenkins changes link</li>
  <li>git changelog</li>
  </ul>
  
  <p>Googling any of these terms get me no information about what it is or how it works. I've also checked the plugins I have installed on my Jenkins server and there's none that even mention a change log; the ones I have seen on the cloudbees website are not installed on Jenkins either. </p>
  
  <p>I'm currently trying to debug why there are differences in behavior for it between freestyle and multi-branch pipeline jobs and am failing at finding any relevant information/documentation.</p>
  
  <p>Any help or guidance would be greatly appreciated!</p>