diff --git a/reference/libevent/functions/event-buffer-set-callback.xml b/reference/libevent/functions/event-buffer-set-callback.xml
index 29c7c81744..c7198be347 100644
--- a/reference/libevent/functions/event-buffer-set-callback.xml
+++ b/reference/libevent/functions/event-buffer-set-callback.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!-- $Revision$ -->
-<refentry xml:id="function.event-buffer-new" xmlns="http://docbook.org/ns/docbook">
+<refentry xml:id="function.event-buffer-set-callback" xmlns="http://docbook.org/ns/docbook">
  <refnamediv>
   <refname>event_buffer_set_callback</refname>
   <refpurpose>Set or reset callbacks for a buffered event</refpurpose>
@@ -17,7 +17,7 @@
    <methodparam choice="opt"><type>mixed</type><parameter>arg</parameter></methodparam>
   </methodsynopsis>
   <para>
-   Sets or changess existing callbacks for the buffered <parameter>event</parameter>.
+   Sets or changes existing callbacks for the buffered <parameter>event</parameter>.
   </para>
  </refsect1>
 
@@ -75,7 +75,7 @@
  <refsect1 role="returnvalues">
   &reftitle.returnvalues;
   <para>
-   <function>event_buffer_set_callback</function> returns &true; on success or &false; on failure.
+   &return.success;
   </para>
  </refsect1>
 
diff --git a/reference/libevent/functions/event-set.xml b/reference/libevent/functions/event-set.xml
index c328cced30..368eb4ab73 100644
--- a/reference/libevent/functions/event-set.xml
+++ b/reference/libevent/functions/event-set.xml
@@ -130,6 +130,28 @@
   </para>
  </refsect1>
 
+ <refsect1 role="changelog">
+  &reftitle.changelog;
+  <informaltable>
+   <tgroup cols="2">
+    <thead>
+     <row>
+      <entry>&Version;</entry>
+      <entry>&Description;</entry>
+     </row>
+    </thead>
+    <tbody>
+     <row>
+      <entry>0.0.4</entry>
+      <entry>
+       <constant>EV_SIGNAL</constant> support was added.
+      </entry>
+     </row>
+    </tbody>
+   </tgroup>
+  </informaltable>
+ </refsect1>
+
 </refentry>
 
 <!-- Keep this comment at the end of the file
diff --git a/reference/libevent/versions.xml b/reference/libevent/versions.xml
index e415028517..1738d2a51e 100644
--- a/reference/libevent/versions.xml
+++ b/reference/libevent/versions.xml
@@ -14,6 +14,7 @@
  <function name='event_base_set' from='PECL libevent &gt;= 0.0.1'/>
  <function name='event_buffer_base_set' from='PECL libevent &gt;= 0.0.1'/>
  <function name='event_buffer_disable' from='PECL libevent &gt;= 0.0.1'/>
+ <function name='event_buffer_set_callback' from='PECL libevent &gt;= 0.0.4'/>
  <function name='event_buffer_enable' from='PECL libevent &gt;= 0.0.1'/>
  <function name='event_buffer_fd_set' from='PECL libevent &gt;= 0.0.1'/>
  <function name='event_buffer_free' from='PECL libevent &gt;= 0.0.1'/>