diff --git a/CHANGES b/CHANGES
index bcdf8f3849..9ac579491b 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,6 @@
+4916.	[func]		Remove IDNA2003 support and the bundled idnkit-1.0
+			library.
+
 4915.	[func]		Implement IDNA2008 support in dig by adding support
 			for libidn2.  New dig option +idnin has been added,
 			which allows to process invalid domain names much
diff --git a/doc/arm/notes.xml b/doc/arm/notes.xml
index 453fa814fa..33d6d1f2b7 100644
--- a/doc/arm/notes.xml
+++ b/doc/arm/notes.xml
@@ -96,6 +96,11 @@
 	  accepted in master files. [GL #13] [GL #56]
 	</para>
       </listitem>
+      <listitem>
+	<para>
+	  IDNA2003 support via (bundled) idnkit-1.0 has been removed.
+	</para>
+      </listitem>
     </itemizedlist>
   </section>