release
    with differences in the database format,
    is to try to reconstruct the database file using
    the <a href="app-utilsprg.html#mha-dbrecover"><tt>mha-dbrecover</tt></a>
    utility contained in the MHonArc version the archive is being
    downgraded to.
    </p>
<table class="tip" width="100%">
<tr valign="baseline">
<td><strong>TIP:</strong></td>
<td width="100%">
    <p>The safest way to downgrade is to recreate an archive
    from the original raw mail data.  It is good practice to preserve