EARLIER: MIMEFILTERS API Change</a></small>
<li><small><a href="#v2.1.x-dbedit">UPGRADING FROM v2.1.x OR EARLIER: Database Format Change</a></small>
<li><small><a href="#down">DOWNGRADING TO OLDER VERSIONS</a></small>
</ul>
<li><a href="#v2.6.9">v2.6.9 Notes</a>
<ul>
<li><small><a href="#attach-filenaming">Attachment filename format change</a></small>
<li><small><a href="#mhonarc::write_attachment"><tt>mhonarc::write_attachment</tt>: API change</a></small>
</ul>
<li><a href="#v2.6.0">v2.6.0 Notes</a>
<ul>
<