--- a/rdf-concepts/index.html	Tue Nov 06 11:21:45 2012 +0000
+++ b/rdf-concepts/index.html	Tue Nov 06 19:43:13 2012 +0000
@@ -1101,6 +1101,16 @@
     <p>Specifications that <a href="#conformance">conform to RDF</a>
     MAY impose additional constraints on the <a>datatype map</a>,
     for example, require support for certain datatypes.</p>
+
+    <p class="note" id="note-custom-datatypes">The Web Ontology Language
+    [[OWL2-SYNTAX]] offers facilities for formally defining 
+    <a href="http://www.w3.org/TR/owl2-syntax/#Datatype_Definitions">custom
+    datatypes</a> that can be used with RDF. Furthermore, a practice for 
+    identifying 
+    <a href="http://www.w3.org/TR/swbp-xsch-datatypes/#sec-userDefined">
+    user-defined simple XML Schema datatypes</a>
+    is suggested in [[SWBP-XSCH-DATATYPES]]. RDF implementations
+    are not required to support either of these facilities.</p>
 </section>
 
 
@@ -1232,6 +1242,7 @@
   <em>RDF 1.1 Concepts and Abstract Syntax</em>.</p>
 
   <ul>
+    <li>2012-11-06: Add a <a href="#note-custom-datatypes">note</a> on the use of OWL2 custom datatypes and simple user-defined XML Schema datatypes (<a href="http://www.w3.org/2011/rdf-wg/track/issues/96">ISSUE-96</a>)</li>
     <li>2012-11-06: Add a <a href="#note-empty-named-graphs">note on empty named graphs</a> (<a href="http://www.w3.org/2011/rdf-wg/track/issues/22">ISSUE-22</a>)</li>
     <li>2012-11-06: Modify the <a title="relative IRI">Note on relative IRIs</a> to stress their usefulness and to clarify the role of RFC 3986 in the resolution process</li>
     <li>2012-11-06: Informatively <a href="#referents">explain</a> that IRIs in this spec are treated only as nodes in a graph data model, and no interaction model is implied</li>