diff --git a/CHANGES b/CHANGES
index 318c9d32c8..a4dfc050b5 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,6 @@
+4984.	[bug]		Improve handling of very large incremental
+			zone transfers to prevent journal corruption. [GL #339]
+
 4983.	[func]		Add the ability to not return a DNS COOKIE option
 			when one is present in the request (answer-cookie no;).
 			[GL #173]
diff --git a/doc/arm/notes.xml b/doc/arm/notes.xml
index 42e724fa1d..36191cf434 100644
--- a/doc/arm/notes.xml
+++ b/doc/arm/notes.xml
@@ -316,7 +316,10 @@
     <itemizedlist>
       <listitem>
 	<para>
-	  None.
+	  <command>named</command> now rejects excessively large
+	  incremental (IXFR) zone transfers in order to prevent
+	  possible corruption of journal files which could cause
+	  <command>named</command> to abort when loading zones. [GL #339]
 	</para>
       </listitem>
     </itemizedlist>