<varlistentry>
	<term><option>-V</option></term>
	<term><option>--protocol-version</option></term>
	<listitem>
		<para>
			Specify which version of the MQTT protocol should be
			used when connecting to the remote broker. Can be
			<option>5</option>, <option>311</option>,
			<option>31</option>, or the more verbose
			<option>mqttv5</option>, <option>mqttv311</option>, or
			<option>mqttv31</option>.
			Defaults to <option>311</option>.
		</para>
	</listitem>
</varlistentry>
