diff --git a/reference/mysqlnd_qc/changes.xml b/reference/mysqlnd_qc/changes.xml
index e4f2195963..fb505f4e43 100644
--- a/reference/mysqlnd_qc/changes.xml
+++ b/reference/mysqlnd_qc/changes.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<!-- $Revision$ --> 
+<!-- $Revision$ -->
 
 <chapter xml:id="mysqlnd-qc.changes" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
  <title xmlns="http://docbook.org/ns/docbook">Change History</title>
@@ -12,16 +12,94 @@
   for a complete list of changes.
  </para>
 
- <section xml:id="mysqlnd-qc.changes-one-one">
-  <title xmlns="http://docbook.org/ns/docbook">PECL/mysqlnd_qc 1.1 series</title>
+<section xml:id="mysqlnd-qc.changes-one-two">
+  <title xmlns="http://docbook.org/ns/docbook">PECL/mysqlnd_qc 1.2 series</title>
   <para>
-   1.1.0
+   1.2.0 - alpha
    <itemizedlist>
     <listitem>
      <simpara>
       Release date: under development
      </simpara>
     </listitem>
+    <listitem>
+     <simpara>
+      Motto/theme: PHP 5.5 compatibility
+     </simpara>
+    </listitem>
+   </itemizedlist>
+  </para>
+  <para>
+   Feature changes
+   <itemizedlist>
+    <listitem>
+     <para>
+      Update build for PHP 5.5 (Credits: Remi Collet)
+     </para>
+    </listitem>
+    <listitem>
+     <para>
+      APC storage handler update
+      <itemizedlist>
+       <listitem>
+         <simpara>
+          Fix build for APC trunk
+         </simpara>
+       </listitem>
+      </itemizedlist>
+     </para>
+    </listitem>
+    <listitem>
+     <para>
+      Introduced
+      <link linkend="constant.mysqlnd-qc-version"><constant>MYSQLND_QC_VERSION</constant></link> and
+      <link linkend="constant.mysqlnd-qc-version-id"><constant>MYSQLND_QC_VERSION_ID</constant></link>.
+     </para>
+    </listitem>
+   </itemizedlist>
+  </para>
+ </section>
+
+ <section xml:id="mysqlnd-qc.changes-one-one">
+  <title xmlns="http://docbook.org/ns/docbook">PECL/mysqlnd_qc 1.1 series</title>
+   <para>
+   1.1.0 - stable
+   <itemizedlist>
+    <listitem>
+     <simpara>
+      Release date: 04/2012
+     </simpara>
+    </listitem>
+    <listitem>
+     <simpara>
+      Motto/theme: PHP 5.4 compatibility, schema pattern based caching and mysqlnd_ms support
+     </simpara>
+    </listitem>
+   </itemizedlist>
+  </para>
+  <para>
+   1.1.0 - beta
+   <itemizedlist>
+    <listitem>
+     <simpara>
+      Release date: 04/2012
+     </simpara>
+    </listitem>
+    <listitem>
+     <simpara>
+      Motto/theme: PHP 5.4 compatibility, schema pattern based caching and mysqlnd_ms support
+     </simpara>
+    </listitem>
+   </itemizedlist>
+  </para>
+  <para>
+   1.1.0 - alpha
+   <itemizedlist>
+    <listitem>
+     <simpara>
+      Release date: 04/2012
+     </simpara>
+    </listitem>
     <listitem>
      <simpara>
       Motto/theme: PHP 5.4 compatibility, schema pattern based caching and mysqlnd_ms support
diff --git a/reference/mysqlnd_qc/constants.xml b/reference/mysqlnd_qc/constants.xml
index bd085f2062..99b2d8ad50 100644
--- a/reference/mysqlnd_qc/constants.xml
+++ b/reference/mysqlnd_qc/constants.xml
@@ -174,6 +174,78 @@ $pdo_mysql->query("SELECT id, title FROM news");
    </varlistentry>
   </variablelist>
  </para>
+ <para>
+  <emphasis role="bold">Other</emphasis>
+ </para>
+ <para>
+  The plugins version number can be obtained using
+  <constant>MYSQLND_QC_VERSION</constant> or
+  <constant>MYSQLND_QC_VERSION_ID</constant>.
+  <constant>MYSQLND_QC_VERSION</constant>
+  is the string representation of the numerical version number
+  <constant>MYSQLND_QC_VERSION_ID</constant>, which is an integer such as 10000.
+  Developers can calculate the version number as follows.
+ </para>
+ <para>
+   <informaltable>
+   <tgroup cols="2">
+    <thead>
+     <row>
+      <entry>Version (part)</entry>
+      <entry>Example</entry>
+     </row>
+    </thead>
+    <tbody>
+     <row>
+      <entry>Major*10000</entry>
+      <entry>1*10000 = 10000</entry>
+     </row>
+     <row>
+      <entry>Minor*100</entry>
+      <entry>0*100 = 0</entry>
+     </row>
+     <row>
+      <entry>Patch</entry>
+      <entry>0 = 0</entry>
+     </row>
+     <row>
+      <entry>MYSQLND_QC_VERSION_ID</entry>
+      <entry>10000</entry>
+     </row>
+    </tbody>
+   </tgroup>
+  </informaltable>
+ </para>
+ <para>
+  <variablelist>
+   <varlistentry xml:id="constant.mysqlnd-qc-version">
+    <term>
+     <constant>MYSQLND_QC_VERSION</constant>
+     (<type>string</type>)
+    </term>
+    <listitem>
+     <simpara>
+      Plugin version string, for example, <quote>1.0.0-prototype</quote>.
+     </simpara>
+    </listitem>
+   </varlistentry>
+  </variablelist>
+ </para>
+ <para>
+  <variablelist>
+   <varlistentry xml:id="constant.mysqlnd-qc-version-id">
+    <term>
+     <constant>MYSQLND_QC_VERSION_ID</constant>
+     (<type>int</type>)
+    </term>
+    <listitem>
+     <simpara>
+	  Plugin version number, for example, 10000.
+     </simpara>
+    </listitem>
+   </varlistentry>
+  </variablelist>
+ </para>
 </appendix>