               <span class="code">[Engines][[WxEngine]]</span>. The
                <span class="code">driver</span> parameter is no longer
                necessary in the RESTful service's configuration stanza.
                These changes should be done automatically by the
                install routine.
            </li>
        </ul>

        <h2>From V2.3 or earlier</h2>

        <p>The option <span class="code">time_length</span> will now be the exact
            length of the resultant plot. Befo