diff --git a/xep-0384.xml b/xep-0384.xml
index f6e9a939..68e422b9 100644
--- a/xep-0384.xml
+++ b/xep-0384.xml
@@ -56,6 +56,24 @@
     <email>xmpp@larma.de</email>
     <jid>jabber@larma.de</jid>
   </author>
+  <revision>
+    <version>0.4.0</version>
+    <date>2020-03-08</date>
+    <initials>dg</initials>
+    <remark>
+      <ul>
+        <li>Incorporate the double ratchet protocol specification.</li>
+        <li>Use one node to store all bundles. One item per bundle.</li>
+        <li>Recommend 'open' access model for both PEP nodes.</li>
+        <li>Specify OMEMO encryption for XEP-0045 Multi-User Chats.</li>
+        <li>Use XEP-0420: Stanza Content Encryption.</li>
+        <li>Use AES256/CBC to encrypt SCE payload.</li>
+        <li>Change namespace to 'urn:xmpp:omemo:1'</li>
+        <li>Use wrapping 'keys' element for key elements in 'header'.</li>
+        <li>Define threat model</li>
+      </ul>
+    </remark>
+  </revision>
   <revision>
     <version>0.3.0</version>
     <date>2018-07-31</date>