&gt; I&#x27;m not quite sure why this Internet-Draft expired without a replacement<p>Oh, because it was issued as an RFC!<p><a href="https:&#x2F;&#x2F;www.rfc-editor.org&#x2F;rfc&#x2F;rfc7627.txt" rel="nofollow">https:&#x2F;&#x2F;www.rfc-editor.org&#x2F;rfc&#x2F;rfc7627.txt</a>