    has been renamed to <code>name</code> in Activity Streams 2.0.
      Implementations ought to treat <code>displayName</code> as an alias
      for <code>name</code>.
    </li>
    <li>
      Activity Streams 1.0 uses the <code>title</code> property which has
      been dropped from Activity Streams 2.0. Implementations processing
      Activity Streams 1.0 documents as Activity Streams 2.0 ought to treat
      instances of the <code>title</code> property as an extension.
    </li>
    <li>
      This do