--- a/spec/index-respec.html	Tue Dec 06 16:27:15 2011 +0100
+++ b/spec/index-respec.html	Tue Dec 06 16:52:10 2011 +0100
@@ -1039,6 +1039,9 @@
 
 <section class='appendix informative' id="history">
 <h1>Change History</h1>
+<p><a href="http://www.w3.org/2005/Incubator/webid/spec/drafts/ED-webid-2011-11-23/">2011-11-23</a>
+Wide ranging changes: Rewrote the Verification algorithm now enhanced with a detailed sequence diagram.  Moved to new ontology using xsd:hexBinary datatypes and removed rsa: ontology. Rewrote vocabulary section using clearer names. All these changes required serious rewriting everywhere.
+</p>
 <p><a href="https://dvcs.w3.org/hg/WebID/rev/6b60d7335151">2011-02-10</a>
 Move to <a href="http://www.w3.org/2005/Incubator/webid/">W3C WebID XG</a>.
 Updates from previous unofficial WebID group include changes on