diff --git a/xep.ent b/xep.ent
index a6b0099d..94b9254a 100644
--- a/xep.ent
+++ b/xep.ent
@@ -65,9 +65,10 @@ THE SOFTWARE.
 
 <!ENTITY UNAVAILABLE "&lt;presence type='unavailable'/&gt;">
 
-<!-- note about namespace versioning -->
+<!-- notes about namespace versioning -->
 
 <!ENTITY VNOTE "(see <link url='#registrar-versioning'>Namespace Versioning</link> regarding the possibility of incrementing the version number)">
+<!ENTITY NSVER "<p>If the protocol defined in this specification undergoes a major revision that is not fully backward-compatible with an older version, the XMPP Registrar shall increment the protocol version number found at the end of the XML namespaces defined herein, as described in Section 4 of <cite>XEP-0053</cite>.</p>">
 
 <!-- old note about provisional namespaces in experimental specs -->
 
@@ -230,7 +231,7 @@ THE SOFTWARE.
 
 <!ENTITY BOOLEANNOTE "<note>In accordance with Section 3.2.2.1 of <cite>XML Schema Part 2: Datatypes</cite>, the allowable lexical representations for the xs:boolean datatype are the strings &quot;0&quot; and &quot;false&quot; for the concept 'false' and the strings &quot;1&quot; and &quot;true&quot; for the concept 'true'; implementations MUST support both styles of lexical representation.</note>" >
 
-<!ENTITY REGPROCESS "<p>In order to submit new values to this registry, the registrant must define an XML fragment of the following form and either include it in the relevant XMPP Extension Protocol or send it to the email address &lt;registrar@xmpp.org&gt;:</p>" >
+<!ENTITY REGPROCESS "<p>In order to submit new values to this registry, the registrant shall define an XML fragment of the following form and either include it in the relevant XMPP Extension Protocol or send it to the email address &lt;registrar@xmpp.org&gt;:</p>" >
 
 <!-- RFC 2119 reference -->