"sectionbody">
<div class="paragraph">
<p>The server may optionally send a capability of the form <code>agent=X</code> to
notify the client that the server is running version <code>X</code>. The client may
optionally return its own agent string by responding with an <code>agent=Y</code>
capability (but it MUST NOT do so if the server did not mention the
agent capability). The <code>X</code> and <code>Y</code> strings may contain any printable
ASCII characters except space (i.e., the byte range 32 &lt; x &lt