llback API</a>, you can ignore this compatibility
    item.  <b>However</b>, if you use the <tt>mha-preview</tt> example script,
    continuing reading.
    </p>
    </td>
    </tr>
    </table>
    <p>In v2.6.12, the return value for the
    <a href="app-api.html#CBMessageBodyRead">$mhonarc::CBMessageBodyRead</a>
    and
    <a href="app-api.html#CBRawMessageBodyRead">$mhonarc::CBRawMessageBodyRead</a>
    is now checked to see if the message should be excluded from further
    processing.  In previous ver