date.  It is not sent back by the client, it
simply informs the client that it can be sent zero-id values
to delete references.</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_quiet">quiet</h2>
<div class="sectionbody">
<div class="paragraph">
<p>If the receive-pack server advertises the <em>quiet</em> capability, it is
capable of silencing human-readable progress output which otherwise may
be shown when processing the received pack. A send-pack client should
respond with the <em>quiet</em> capability