diff --git a/reference/outcontrol/functions/flush.xml b/reference/outcontrol/functions/flush.xml
index cfb24ee1c8..1013cd97ee 100644
--- a/reference/outcontrol/functions/flush.xml
+++ b/reference/outcontrol/functions/flush.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!-- $Revision$ -->
-<!-- EN-Revision: 91ab4f5f898023b0eed0e642e1482ac11f749d20 Maintainer: hirokawa Status: ready -->
+<!-- EN-Revision: bac9d6a54fae363b3cc337bda924a76ff47e8851 Maintainer: hirokawa Status: ready -->
 <!-- CREDITS: shimooka -->
 <refentry xmlns="http://docbook.org/ns/docbook" xml:id="function.flush">
  <refnamediv>
@@ -56,6 +56,28 @@
    &return.void;
   </para>
  </refsect1>
+ 
+ <refsect1 role="changelog">
+  &reftitle.changelog;
+  <informaltable>
+   <tgroup cols="2">
+    <thead>
+     <row>
+      <entry>&Version;</entry>
+      <entry>&Description;</entry>
+     </row>
+    </thead>
+    <tbody>
+     <row>
+      <entry>8.4.0</entry>
+      <entry>
+       FastCGI 利用時に、本文なしでヘッダをフラッシュできるようになりました。
+      </entry>
+     </row>
+    </tbody>
+   </tgroup>
+  </informaltable>
+ </refsect1>
 
  <refsect1 role="seealso">
   &reftitle.seealso;