diff --git a/appendices/migration56/new-functions.xml b/appendices/migration56/new-functions.xml
index 898085ead0..ff8a695c8b 100644
--- a/appendices/migration56/new-functions.xml
+++ b/appendices/migration56/new-functions.xml
@@ -54,6 +54,26 @@
      <function>openssl_x509_fingerprint</function>
     </simpara>
    </listitem>
+   <listitem>
+    <simpara>
+     <function>openssl_spki_new</function>
+    </simpara>
+   </listitem>
+   <listitem>
+    <simpara>
+     <function>openssl_spki_verify</function>
+    </simpara>
+   </listitem>
+   <listitem>
+    <simpara>
+     <function>openssl_spki_export_challenge</function>
+    </simpara>
+   </listitem>
+   <listitem>
+    <simpara>
+     <function>openssl_spki_export</function>
+    </simpara>
+   </listitem>
   </itemizedlist>
  </sect2>