diff --git a/draft-ietf-sidrops-8210bis.xml b/draft-ietf-sidrops-8210bis.xml
index 296f2bb..4ff4435 100644
--- a/draft-ietf-sidrops-8210bis.xml
+++ b/draft-ietf-sidrops-8210bis.xml
@@ -8,7 +8,7 @@
 <?rfc compact="yes"?>
 <?rfc subcompact="no"?>
 
-<rfc category="std" docName="draft-ietf-sidrops-8210bis-11"
+<rfc category="std" docName="draft-ietf-sidrops-8210bis-12"
      submissionType="IETF" ipr="trust200902" version="2" consensus="yes">
 
   <front>
@@ -485,7 +485,7 @@
 	      An 8-bit field of the ASPA PDU where the low order bit is
 	      set if the AS relationships are for IPv4 (AFI 1), and the
 	      second lowest bit is set for IPv6 (AFI 2).  Currently,
-	      both bits MUST be set.
+	      both bits MUST be set.  This field may be removed soon.
 	    </t>
             <t hangText="Provider AS Count:">
 	      A 16-bit count of Provider Autonomous System Numbers in
@@ -499,8 +499,7 @@
 	    </t>
             <t hangText="Provider Autonomous System Numbers:">
 	      The set of 32-bit AS numbers authorized to propagate
-	      prefixes of the specified AFI which were received from the
-	      customer AS.
+	      prefixes which were received from the customer AS.
 	    </t>
           </list>
         </t>
@@ -1079,7 +1078,8 @@
 	  Currently, the two low order bits MUST always be set, i.e. 1,
 	  and the rest unset, i.e. 0.  This allows the router to prepare
 	  for less change should the AFIs be separated in a future
-	  version.
+	  version.  This field is likely to be removed before
+	  publication.
 	</t>
 	
         <t>
@@ -1253,19 +1253,18 @@
       </t>
       <t>
         Once the cache and router have agreed upon a Protocol Version
-        via the negotiation process above, that version is stable for
-        the life of the session.  See <xref target="fields"/> for a
+        via the negotiation process above, that version is fixed for the
+        life of the session.  See <xref target="fields"/> for a
         discussion of the interaction between Protocol Version and
         Session ID.
       </t>
       <t>
 	The configured transport security, the negotiated RPKI-Rtr
-	version, etc. may not be changed once a session has been
+	version, etc. MAY NOT be changed once a session has been
 	established.  If one side or the other wishes to try a different
 	transport, protocol version, etc. they MUST terminate the
 	transport and restart the entire transport and version
-	negotiation process, <xref target="Transport"/> and <xref
-	target="version"/>.
+	negotiation process.
       </t>
       <t>
         If either party receives a PDU for a different Protocol
@@ -1841,9 +1840,10 @@ Cache                         Router
             The cache server believes the client's request to be
             invalid.
           </t>
-          <t hangText="4: Unsupported Protocol Version (fatal):">
+          <t hangText="4: Unsupported Protocol Version (non-fatal):">
             The Protocol Version is not known by the receiver of the
-            PDU.
+            PDU.  A session is not [re-]established, but data learned
+	    need not be deleted.
           </t>
           <t hangText="5: Unsupported PDU Type (fatal):">
             The PDU Type is not known by the receiver of the PDU.