Added upgrade for 2.1.1 and updated version.
diff --git a/user_guide/overview/appflow.html b/user_guide/overview/appflow.html
index 61bf907..a59758f 100644
--- a/user_guide/overview/appflow.html
+++ b/user_guide/overview/appflow.html
@@ -28,7 +28,7 @@
 <div id="masthead">
 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">
 <tr>
-<td><h1>CodeIgniter User Guide Version 2.1.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.1.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
@@ -88,7 +88,7 @@
 <a href="../index.html">User Guide Home</a>&nbsp;&nbsp;&nbsp;&middot;&nbsp;&nbsp;
 Next Topic:&nbsp;&nbsp;<a href="mvc.html">Model-View-Controller</a>
 </p>
-<p><a href="http://codeigniter.com">CodeIgniter</a> &nbsp;&middot;&nbsp; Copyright &#169; 2006 - 2011 &nbsp;&middot;&nbsp; <a href="http://ellislab.com/">EllisLab, Inc.</a></p>
+<p><a href="http://codeigniter.com">CodeIgniter</a> &nbsp;&middot;&nbsp; Copyright &#169; 2006 - 2012 &nbsp;&middot;&nbsp; <a href="http://ellislab.com/">EllisLab, Inc.</a></p>
 </div>
 
 </body>
diff --git a/user_guide/overview/at_a_glance.html b/user_guide/overview/at_a_glance.html
index 7e93bd2..18688d3 100644
--- a/user_guide/overview/at_a_glance.html
+++ b/user_guide/overview/at_a_glance.html
@@ -28,7 +28,7 @@
 <div id="masthead">
 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">
 <tr>
-<td><h1>CodeIgniter User Guide Version 2.1.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.1.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
@@ -155,7 +155,7 @@
 <a href="../index.html">User Guide Home</a>&nbsp;&nbsp;&nbsp;&middot;&nbsp;&nbsp;
 Next Topic:&nbsp;&nbsp;<a href="cheatsheets.html">CodeIgniter Cheatsheets</a>
 </p>
-<p><a href="http://codeigniter.com">CodeIgniter</a> &nbsp;&middot;&nbsp; Copyright &#169; 2006 - 2011 &nbsp;&middot;&nbsp; <a href="http://ellislab.com/">EllisLab, Inc.</a></p>
+<p><a href="http://codeigniter.com">CodeIgniter</a> &nbsp;&middot;&nbsp; Copyright &#169; 2006 - 2012 &nbsp;&middot;&nbsp; <a href="http://ellislab.com/">EllisLab, Inc.</a></p>
 </div>
 
 </body>
diff --git a/user_guide/overview/cheatsheets.html b/user_guide/overview/cheatsheets.html
index 60e6552..005890a 100644
--- a/user_guide/overview/cheatsheets.html
+++ b/user_guide/overview/cheatsheets.html
@@ -28,7 +28,7 @@
 <div id="masthead">
 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">
 <tr>
-<td><h1>CodeIgniter User Guide Version 2.1.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.1.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
@@ -76,7 +76,7 @@
 <a href="../index.html">User Guide Home</a>&nbsp;&nbsp;&nbsp;&middot;&nbsp;&nbsp;
 Next Topic:&nbsp;&nbsp;<a href="features.html">CodeIgniter Features</a>
 </p>
-<p><a href="http://codeigniter.com">CodeIgniter</a> &nbsp;&middot;&nbsp; Copyright &#169; 2006 - 2011 &nbsp;&middot;&nbsp; <a href="http://ellislab.com/">EllisLab, Inc.</a></p>
+<p><a href="http://codeigniter.com">CodeIgniter</a> &nbsp;&middot;&nbsp; Copyright &#169; 2006 - 2012 &nbsp;&middot;&nbsp; <a href="http://ellislab.com/">EllisLab, Inc.</a></p>
 </div>
 
 </body>
diff --git a/user_guide/overview/features.html b/user_guide/overview/features.html
index d1d5c8c..c970444 100644
--- a/user_guide/overview/features.html
+++ b/user_guide/overview/features.html
@@ -28,7 +28,7 @@
 <div id="masthead">
 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">
 <tr>
-<td><h1>CodeIgniter User Guide Version 2.1.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.1.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
@@ -111,7 +111,7 @@
 <a href="../index.html">User Guide Home</a>&nbsp;&nbsp;&nbsp;&middot;&nbsp;&nbsp;
 Next Topic:&nbsp;&nbsp;<a href="appflow.html">Application Flow Chart</a>
 </p>
-<p><a href="http://codeigniter.com">CodeIgniter</a> &nbsp;&middot;&nbsp; Copyright &#169; 2006 - 2011 &nbsp;&middot;&nbsp; <a href="http://ellislab.com/">EllisLab, Inc.</a></p>
+<p><a href="http://codeigniter.com">CodeIgniter</a> &nbsp;&middot;&nbsp; Copyright &#169; 2006 - 2012 &nbsp;&middot;&nbsp; <a href="http://ellislab.com/">EllisLab, Inc.</a></p>
 </div>
 
 </body>
diff --git a/user_guide/overview/getting_started.html b/user_guide/overview/getting_started.html
index ad6fa01..8d8a8af 100644
--- a/user_guide/overview/getting_started.html
+++ b/user_guide/overview/getting_started.html
@@ -28,7 +28,7 @@
 <div id="masthead">
 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">
 <tr>
-<td><h1>CodeIgniter User Guide Version 2.1.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.1.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
@@ -85,7 +85,7 @@
 <a href="../index.html">User Guide Home</a>&nbsp;&nbsp;&nbsp;&middot;&nbsp;&nbsp;
 Next Topic:&nbsp;&nbsp;<a href="at_a_glance.html">CodeIgniter At a Glance</a>
 </p>
-<p><a href="http://codeigniter.com">CodeIgniter</a> &nbsp;&middot;&nbsp; Copyright &#169; 2006 - 2011 &nbsp;&middot;&nbsp; <a href="http://ellislab.com/">EllisLab, Inc.</a></p>
+<p><a href="http://codeigniter.com">CodeIgniter</a> &nbsp;&middot;&nbsp; Copyright &#169; 2006 - 2012 &nbsp;&middot;&nbsp; <a href="http://ellislab.com/">EllisLab, Inc.</a></p>
 </div>
 
 </body>
diff --git a/user_guide/overview/goals.html b/user_guide/overview/goals.html
index f2263c7..0d2eeb5 100644
--- a/user_guide/overview/goals.html
+++ b/user_guide/overview/goals.html
@@ -28,7 +28,7 @@
 <div id="masthead">
 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">
 <tr>
-<td><h1>CodeIgniter User Guide Version 2.1.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.1.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
@@ -91,7 +91,7 @@
 <a href="../index.html">User Guide Home</a>&nbsp;&nbsp;&nbsp;&middot;&nbsp;&nbsp;
 Next Topic:&nbsp;&nbsp;<a href="./getting_started.html">Getting Started</a>
 </p>
-<p><a href="http://codeigniter.com">CodeIgniter</a> &nbsp;&middot;&nbsp; Copyright &#169; 2006 - 2011 &nbsp;&middot;&nbsp; <a href="http://ellislab.com/">EllisLab, Inc.</a></p>
+<p><a href="http://codeigniter.com">CodeIgniter</a> &nbsp;&middot;&nbsp; Copyright &#169; 2006 - 2012 &nbsp;&middot;&nbsp; <a href="http://ellislab.com/">EllisLab, Inc.</a></p>
 </div>
 
 </body>
diff --git a/user_guide/overview/index.html b/user_guide/overview/index.html
index f295d4e..732a245 100644
--- a/user_guide/overview/index.html
+++ b/user_guide/overview/index.html
@@ -28,7 +28,7 @@
 <div id="masthead">
 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">
 <tr>
-<td><h1>CodeIgniter User Guide Version 2.1.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.1.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
@@ -77,7 +77,7 @@
 
 <div id="footer">
 <p><a href="#top">Top of Page</a> &nbsp;&middot;&nbsp; <a href="../index.html">User Guide Home</a></p>
-<p><a href="http://codeigniter.com">CodeIgniter</a> &nbsp;&middot;&nbsp; Copyright &#169; 2006 - 2011 &nbsp;&middot;&nbsp; <a href="http://ellislab.com/">EllisLab, Inc.</a></p>
+<p><a href="http://codeigniter.com">CodeIgniter</a> &nbsp;&middot;&nbsp; Copyright &#169; 2006 - 2012 &nbsp;&middot;&nbsp; <a href="http://ellislab.com/">EllisLab, Inc.</a></p>
 </div>
 
 </body>
diff --git a/user_guide/overview/mvc.html b/user_guide/overview/mvc.html
index 4aebb10..989ad7a 100644
--- a/user_guide/overview/mvc.html
+++ b/user_guide/overview/mvc.html
@@ -28,7 +28,7 @@
 <div id="masthead">
 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">
 <tr>
-<td><h1>CodeIgniter User Guide Version 2.1.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.1.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
@@ -93,7 +93,7 @@
 <a href="../index.html">User Guide Home</a>&nbsp;&nbsp;&nbsp;&middot;&nbsp;&nbsp;
 Next Topic:&nbsp;&nbsp;<a href="goals.html">Architectural Goals</a>
 </p>
-<p><a href="http://codeigniter.com">CodeIgniter</a> &nbsp;&middot;&nbsp; Copyright &#169; 2006 - 2011 &nbsp;&middot;&nbsp; <a href="http://ellislab.com/">EllisLab, Inc.</a></p>
+<p><a href="http://codeigniter.com">CodeIgniter</a> &nbsp;&middot;&nbsp; Copyright &#169; 2006 - 2012 &nbsp;&middot;&nbsp; <a href="http://ellislab.com/">EllisLab, Inc.</a></p>
 </div>
 
 </body>