diff --git a/doc/arm/notes.xml b/doc/arm/notes.xml
index c2990599d8..6f01389949 100644
--- a/doc/arm/notes.xml
+++ b/doc/arm/notes.xml
@@ -210,7 +210,13 @@
     <title>Bug Fixes</title>
     <itemizedlist>
       <listitem>
-	<para>None</para>
+        <para>
+          When checking for updates to trust anchors listed in
+          <option>managed-keys</option>, <command>named</command>
+          now revalidates keys based on the current set of
+          active trust anchors, without relying on any cached
+          record of previous validation. [RT #37506]
+        </para>
       </listitem>
     </itemizedlist>
   </sect2>