Added upgrade for 2.1.1 and updated version.
diff --git a/system/core/CodeIgniter.php b/system/core/CodeIgniter.php
index db1aee5..ec72941 100755
--- a/system/core/CodeIgniter.php
+++ b/system/core/CodeIgniter.php
@@ -33,7 +33,7 @@
  * @var string
  *
  */
-	define('CI_VERSION', '2.1.0');
+	define('CI_VERSION', '2.1.1');
 
 /**
  * CodeIgniter Branch (Core = TRUE, Reactor = FALSE)
diff --git a/system/database/drivers/pdo/pdo_driver.php b/system/database/drivers/pdo/pdo_driver.php
index 5de2079..4fc65ae 100644
--- a/system/database/drivers/pdo/pdo_driver.php
+++ b/system/database/drivers/pdo/pdo_driver.php
@@ -9,7 +9,7 @@
  * @license		http://codeigniter.com/user_guide/license.html
  * @author		EllisLab Dev Team
  * @link		http://codeigniter.com
- * @since		Version 2.1.0
+ * @since		Version 2.1.1
  * @filesource
  */
 
diff --git a/system/database/drivers/pdo/pdo_forge.php b/system/database/drivers/pdo/pdo_forge.php
index 1462e8c..1a076d4 100644
--- a/system/database/drivers/pdo/pdo_forge.php
+++ b/system/database/drivers/pdo/pdo_forge.php
@@ -9,7 +9,7 @@
  * @license		http://codeigniter.com/user_guide/license.html
  * @author		EllisLab Dev Team
  * @link		http://codeigniter.com
- * @since		Version 2.1.0
+ * @since		Version 2.1.1
  * @filesource
  */
 
diff --git a/system/database/drivers/pdo/pdo_result.php b/system/database/drivers/pdo/pdo_result.php
index 7f3058f..7c4a2f9 100644
--- a/system/database/drivers/pdo/pdo_result.php
+++ b/system/database/drivers/pdo/pdo_result.php
@@ -9,7 +9,7 @@
  * @license		http://codeigniter.com/user_guide/license.html
  * @author		EllisLab Dev Team
  * @link		http://codeigniter.com
- * @since		Version 2.1.0
+ * @since		Version 2.1.1
  * @filesource
  */
 
diff --git a/system/database/drivers/pdo/pdo_utility.php b/system/database/drivers/pdo/pdo_utility.php
index 29aefca..fec2764 100644
--- a/system/database/drivers/pdo/pdo_utility.php
+++ b/system/database/drivers/pdo/pdo_utility.php
@@ -9,7 +9,7 @@
  * @license		http://codeigniter.com/user_guide/license.html
  * @author		EllisLab Dev Team
  * @link		http://codeigniter.com
- * @since		Version 2.1.0
+ * @since		Version 2.1.1
  * @filesource
  */
 
diff --git a/system/libraries/Cache/Cache.php b/system/libraries/Cache/Cache.php
index 61e7aa7..261fc36 100644
--- a/system/libraries/Cache/Cache.php
+++ b/system/libraries/Cache/Cache.php
@@ -6,7 +6,7 @@
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2006 - 2011 EllisLab, Inc.
+ * @copyright	Copyright (c) 2006 - 2012 EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 2.0
diff --git a/system/libraries/Cache/drivers/Cache_apc.php b/system/libraries/Cache/drivers/Cache_apc.php
index 79d91b3..f750e6c 100644
--- a/system/libraries/Cache/drivers/Cache_apc.php
+++ b/system/libraries/Cache/drivers/Cache_apc.php
@@ -6,7 +6,7 @@
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2006 - 2011 EllisLab, Inc.
+ * @copyright	Copyright (c) 2006 - 2012 EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 2.0
diff --git a/system/libraries/Cache/drivers/Cache_dummy.php b/system/libraries/Cache/drivers/Cache_dummy.php
index f96a68e..b11b5b8 100644
--- a/system/libraries/Cache/drivers/Cache_dummy.php
+++ b/system/libraries/Cache/drivers/Cache_dummy.php
@@ -6,7 +6,7 @@
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2006 - 2011 EllisLab, Inc.
+ * @copyright	Copyright (c) 2006 - 2012 EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 2.0
diff --git a/system/libraries/Cache/drivers/Cache_file.php b/system/libraries/Cache/drivers/Cache_file.php
index 13e2d1a..c500436 100644
--- a/system/libraries/Cache/drivers/Cache_file.php
+++ b/system/libraries/Cache/drivers/Cache_file.php
@@ -6,7 +6,7 @@
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2006 - 2011 EllisLab, Inc.
+ * @copyright	Copyright (c) 2006 - 2012 EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 2.0
diff --git a/system/libraries/Cache/drivers/Cache_memcached.php b/system/libraries/Cache/drivers/Cache_memcached.php
index fc586e0..7478420 100644
--- a/system/libraries/Cache/drivers/Cache_memcached.php
+++ b/system/libraries/Cache/drivers/Cache_memcached.php
@@ -6,7 +6,7 @@
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2006 - 2011 EllisLab, Inc.
+ * @copyright	Copyright (c) 2006 - 2012 EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 2.0
diff --git a/system/libraries/Cart.php b/system/libraries/Cart.php
index ab5a70c..da47b5a 100644
--- a/system/libraries/Cart.php
+++ b/system/libraries/Cart.php
@@ -6,7 +6,7 @@
  *
  * @package		CodeIgniter
  * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2006 - 2011, EllisLab, Inc.
+ * @copyright	Copyright (c) 2006 - 2012, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
diff --git a/system/libraries/Driver.php b/system/libraries/Driver.php
index 9881c1e..f9959ff 100644
--- a/system/libraries/Driver.php
+++ b/system/libraries/Driver.php
@@ -6,7 +6,7 @@
  *
  * @package		CodeIgniter
  * @author		EllisLab Dev Team
- * @copyright	Copyright (c) 2006 - 2011, EllisLab, Inc.
+ * @copyright	Copyright (c) 2006 - 2012, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0
diff --git a/system/libraries/Migration.php b/system/libraries/Migration.php
index 3943ec1..5a41377 100644
--- a/system/libraries/Migration.php
+++ b/system/libraries/Migration.php
@@ -6,7 +6,7 @@
  *
  * @package		CodeIgniter
  * @author		EllisLab Dev Team
- * @copyright	Copyright (c) 2006 - 2011, EllisLab, Inc.
+ * @copyright	Copyright (c) 2006 - 2012, EllisLab, Inc.
  * @license		http://codeigniter.com/user_guide/license.html
  * @link		http://codeigniter.com
  * @since		Version 1.0