diff --git a/reference/spl/arrayobject.xml b/reference/spl/arrayobject.xml
index 7f01d63c0d..6427519dab 100644
--- a/reference/spl/arrayobject.xml
+++ b/reference/spl/arrayobject.xml
@@ -41,6 +41,10 @@
       <interfacename>ArrayAccess</interfacename>
      </oointerface>
  
+     <oointerface>
+      <interfacename>Serializable</interfacename>
+     </oointerface>
+
      <oointerface>
       <interfacename>Countable</interfacename>
      </oointerface>
@@ -99,6 +103,31 @@
     </variablelist>
    </section>
   </section>
+
+  <section role="changelog">
+   &reftitle.changelog;
+   <para>
+    <informaltable>
+     <tgroup cols="2">
+      <thead>
+       <row>
+        <entry>&Version;</entry>
+        <entry>&Description;</entry>
+       </row>
+      </thead>
+      <tbody>
+       <row>
+        <entry>5.3.0</entry>
+        <entry>
+         Implements <interfacename>Serializable</interfacename>.
+        </entry>
+       </row>
+      </tbody>
+     </tgroup>
+    </informaltable>
+   </para>
+  </section>
+
   
 <!-- {{{ ArrayObject properties
   <section xml:id="arrayobject.props">