diff --git a/application/config/mimes.php b/application/config/mimes.php
index 58eea5f..8065794 100644
--- a/application/config/mimes.php
+++ b/application/config/mimes.php
@@ -97,7 +97,8 @@
 				'xlsx'	=>	'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
 				'word'	=>	array('application/msword', 'application/octet-stream'),
 				'xl'	=>	'application/excel',
-				'eml'	=>	'message/rfc822'
+				'eml'	=>	'message/rfc822',
+				'json' => array('application/json', 'text/json')
 			);
 
 
diff --git a/application/controllers/migrate.php b/application/controllers/migrate.php
deleted file mode 100644
index e5442e7..0000000
--- a/application/controllers/migrate.php
+++ /dev/null
@@ -1,40 +0,0 @@
-<?php
-class Migrate extends CI_Controller
-{
-	function __construct()
-	{
-		parent::__construct();
-		
-		$this->load->library('migration');
-
-		/** VERY IMPORTANT - only turn this on when you need it. */
-//		show_error('Access to this controller is blocked, turn me on when you need me.');
-	}
-
-	// Install up to the most up-to-date version.
-	function install()
-	{
-		if ( ! $this->migration->current())
-		{
-			show_error($this->migration->error);
-			exit;
-		}
-
-		echo "<br />Migration Successful<br />";
-	}
-
-	// This will migrate up to the configed migration version
-	function version($id = NULL)
-	{
-		// No $id supplied? Use the config version
-		$id OR $id = $this->config->item('migration_version');
-
-		if ( ! $this->migration->version($id))
-		{
-			show_error($this->migration->error);
-			exit;
-		}
-
-		echo "<br />Migration Successful<br />";
-	}
-}
diff --git a/application/controllers/welcome.php b/application/controllers/welcome.php
index 79689f0..21bef43 100644
--- a/application/controllers/welcome.php
+++ b/application/controllers/welcome.php
@@ -2,12 +2,22 @@
 
 class Welcome extends CI_Controller {
 
-	function __construct()
-	{
-		parent::__construct();
-	}
-
-	function index()
+	/**
+	 * Index Page for this controller.
+	 *
+	 * Maps to the following URL
+	 * 		http://example.com/index.php/welcome
+	 *	- or -  
+	 * 		http://example.com/index.php/welcome/index
+	 *	- or -
+	 * Since this controller is set as the default controller in 
+	 * config/routes.php, it's displayed at http://example.com/
+	 *
+	 * So any other public methods not prefixed with an underscore will
+	 * map to /index.php/welcome/<method_name>
+	 * @see http://codeigniter.com/user_guide/general/urls.html
+	 */
+	public function index()
 	{
 		$this->load->view('welcome_message');
 	}
diff --git a/application/migrations/001_Create_accounts.php b/application/migrations/001_Create_accounts.php
deleted file mode 100644
index 4b2fc93..0000000
--- a/application/migrations/001_Create_accounts.php
+++ /dev/null
@@ -1,32 +0,0 @@
-<?php defined('BASEPATH') OR exit('No direct script access allowed');
-
-class Migration_Create_accounts extends	CI_Migration {
-	
-	function up() 
-	{	
-		if ( ! $this->db->table_exists('accounts'))
-		{
-			// Setup Keys
-			$this->dbforge->add_key('id', TRUE);
-			
-			$this->dbforge->add_field(array(
-				'id' => array('type' => 'INT', 'constraint' => 5, 'unsigned' => TRUE, 'auto_increment' => TRUE),
-				'company_name' => array('type' => 'VARCHAR', 'constraint' => '200', 'null' => FALSE),
-				'first_name' => array('type' => 'VARCHAR', 'constraint' => '200', 'null' => FALSE),
-				'last_name' => array('type' => 'VARCHAR', 'constraint' => '200', 'null' => FALSE),
-				'phone' => array('type' => 'TEXT', 'null' => FALSE),
-				'email' => array('type' => 'TEXT', 'null' => FALSE),
-				'address' => array('type' => 'TEXT', 'null' => FALSE),
-				'Last_Update' => array('type' => 'DATETIME', 'null' => FALSE)
-			));
-			
-			$this->dbforge->add_field("Created_At TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP");
-			$this->dbforge->create_table('accounts', TRUE);
-		}
-	}
-
-	function down() 
-	{
-		$this->dbforge->drop_table('accounts');
-	}
-}
diff --git a/system/core/CodeIgniter.php b/system/core/CodeIgniter.php
index 567e67f..39a4d7f 100644
--- a/system/core/CodeIgniter.php
+++ b/system/core/CodeIgniter.php
@@ -32,7 +32,14 @@
  *  Define the CodeIgniter Version
  * ------------------------------------------------------
  */
-	define('CI_VERSION', '2.0');
+	define('CI_VERSION', '2.0.1');
+
+/*
+ * ------------------------------------------------------
+ *  Define the CodeIgniter Branch (Core = TRUE, Reactor = FALSE)
+ * ------------------------------------------------------
+ */
+	define('CI_CORE', FALSE);
 
 /*
  * ------------------------------------------------------
@@ -46,7 +53,14 @@
  *  Load the framework constants
  * ------------------------------------------------------
  */
-	require(APPPATH.'config/constants'.EXT);
+	if (file_exists(APPPATH.'config/'.ENVIRONMENT.'/constants'.EXT))
+	{
+		require(APPPATH.'config/'.ENVIRONMENT.'/constants'.EXT);
+	}
+	else
+	{
+		require(APPPATH.'config/constants'.EXT);
+	}
 
 /*
  * ------------------------------------------------------
diff --git a/system/core/Common.php b/system/core/Common.php
index cd6b933..f424a2c 100644
--- a/system/core/Common.php
+++ b/system/core/Common.php
@@ -88,7 +88,7 @@
 			@unlink($file);
 			return TRUE;
 		}
-		elseif (($fp = @fopen($file, FOPEN_WRITE_CREATE)) === FALSE)
+		elseif ( ! is_file($file) OR ($fp = @fopen($file, FOPEN_WRITE_CREATE)) === FALSE)
 		{
 			return FALSE;
 		}
diff --git a/system/core/Config.php b/system/core/Config.php
index 75f945e..a2a7dd5 100644
--- a/system/core/Config.php
+++ b/system/core/Config.php
@@ -318,4 +318,4 @@
 // END CI_Config class
 
 /* End of file Config.php */
-/* Location: ./system/core/Config.php */
\ No newline at end of file
+/* Location: ./system/core/Config.php */
diff --git a/system/core/Hooks.php b/system/core/Hooks.php
index 75fd811..d1e5586 100644
--- a/system/core/Hooks.php
+++ b/system/core/Hooks.php
@@ -65,7 +65,15 @@
 		// Grab the "hooks" definition file.
 		// If there are no hooks, we're done.
 
-		@include(APPPATH.'config/hooks'.EXT);
+		if (is_file(APPPATH.'config/'.ENVIRONMENT.'/hooks'.EXT))
+		{
+		    include(APPPATH.'config/'.ENVIRONMENT.'/hooks'.EXT);
+		}
+		elseif (is_file(APPPATH.'config/hooks'.EXT))
+		{
+			include(APPPATH.'config/hooks'.EXT);
+		}
+
 
 		if ( ! isset($hook) OR ! is_array($hook))
 		{
diff --git a/system/core/Input.php b/system/core/Input.php
index 25fe102..1813135 100644
--- a/system/core/Input.php
+++ b/system/core/Input.php
@@ -211,11 +211,12 @@
 	* @param	bool	true makes the cookie secure
 	* @return	void
 	*/
-	function set_cookie($name = '', $value = '', $expire = '', $domain = '', $path = '/', $prefix = '', $secure = NULL)
+	function set_cookie($name = '', $value = '', $expire = '', $domain = '', $path = '/', $prefix = '', $secure = FALSE)
 	{
 		if (is_array($name))
 		{
-			foreach (array('value', 'expire', 'domain', 'path', 'prefix', 'name', 'secure') as $item)
+			// always leave 'name' in last place, as the loop will break otherwise, due to $$item
+			foreach (array('value', 'expire', 'domain', 'path', 'prefix', 'secure', 'name') as $item)
 			{
 				if (isset($name[$item]))
 				{
@@ -236,6 +237,10 @@
 		{
 			$path = config_item('cookie_path');
 		}
+		if ($secure == FALSE AND config_item('cookie_secure') != FALSE)
+		{
+			$secure = config_item('cookie_secure');
+		}
 
 		if ( ! is_numeric($expire))
 		{
@@ -246,12 +251,6 @@
 			$expire = ($expire > 0) ? time() + $expire : 0;
 		}
 
-		// If TRUE/FALSE is not provided, use the config
-		if ( ! is_bool($secure))
-		{
-			$secure = (bool) (config_item('cookie_secure') === TRUE);
-		}
-
 		setcookie($prefix.$name, $value, $expire, $path, $domain, $secure);
 	}
 
@@ -540,7 +539,7 @@
 		{
 			if (strpos($str, "\r") !== FALSE)
 			{
-				$str = str_replace(array("\r\n", "\r"), PHP_EOL, $str);
+				$str = str_replace(array("\r\n", "\r", "\r\n\n"), PHP_EOL, $str);
 			}
 		}
 
diff --git a/system/core/Lang.php b/system/core/Lang.php
index fb17790..0b926a3 100644
--- a/system/core/Lang.php
+++ b/system/core/Lang.php
@@ -130,6 +130,13 @@
 	function line($line = '')
 	{
 		$line = ($line == '' OR ! isset($this->language[$line])) ? FALSE : $this->language[$line];
+
+		// Because killer robots like unicorns!
+		if ($line === FALSE)
+		{
+			log_message('error', 'Could not find the language line "'.$line.'"');
+		}
+
 		return $line;
 	}
 
diff --git a/system/core/Loader.php b/system/core/Loader.php
index 7003318..75c0943 100644
--- a/system/core/Loader.php
+++ b/system/core/Loader.php
@@ -975,7 +975,15 @@
 	 */
 	function _ci_autoloader()
 	{
-		include_once(APPPATH.'config/autoload'.EXT);
+		if (file_exists(APPPATH.'config/'.ENVIRONMENT.'/autoload'.EXT))
+		{
+			include_once(APPPATH.'config/'.ENVIRONMENT.'/autoload'.EXT);
+		}
+		else
+		{
+			include_once(APPPATH.'config/autoload'.EXT);
+		}
+		
 
 		if ( ! isset($autoload))
 		{
diff --git a/system/core/Output.php b/system/core/Output.php
index 7fb9f79..5ec096a 100644
--- a/system/core/Output.php
+++ b/system/core/Output.php
@@ -28,19 +28,32 @@
  */
 class CI_Output {
 
-	var $final_output;
-	var $cache_expiration	= 0;
-	var $headers			= array();
-	var $enable_profiler	= FALSE;
-	var $parse_exec_vars	= TRUE;	// whether or not to parse variables like {elapsed_time} and {memory_usage}
-
-	var $_zlib_oc			= FALSE;
-	var $_profiler_sections = array();
+	public $parse_exec_vars	= TRUE;	// whether or not to parse variables like {elapsed_time} and {memory_usage}
+	protected $final_output;
+	protected $cache_expiration	= 0;
+	protected $headers			= array();
+	protected $mime_types			= array();
+	protected $enable_profiler	= FALSE;
+	protected $_zlib_oc			= FALSE;
+	protected $_profiler_sections = array();
 
 	function __construct()
 	{
 		$this->_zlib_oc = @ini_get('zlib.output_compression');
 
+		// Get mime types for later
+		if (file_exists(APPPATH.'config/'.ENVIRONMENT.'/mimes'.EXT))
+		{
+		    include APPPATH.'config/'.ENVIRONMENT.'/mimes'.EXT;
+		}
+		else
+		{
+			include APPPATH.'config/mimes'.EXT;
+		}
+
+
+		$this->mime_types = $mimes;
+
 		log_message('debug', "Output Class Initialized");
 	}
 
@@ -73,6 +86,8 @@
 	function set_output($output)
 	{
 		$this->final_output = $output;
+
+		return $this;
 	}
 
 	// --------------------------------------------------------------------
@@ -96,6 +111,8 @@
 		{
 			$this->final_output .= $output;
 		}
+
+		return $this;
 	}
 
 	// --------------------------------------------------------------------
@@ -125,6 +142,42 @@
 		}
 
 		$this->headers[] = array($header, $replace);
+
+		return $this;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
+	 * Set Content Type Header
+	 *
+	 * @access	public
+	 * @param	string	extension of the file we're outputting
+	 * @return	void
+	 */
+	function set_content_type($mime_type)
+	{
+		if (strpos($mime_type, '/') === FALSE)
+		{
+			$extension = ltrim($mime_type, '.');
+
+			// Is this extension supported?
+			if (isset($this->mime_types[$extension]))
+			{
+				$mime_type =& $this->mime_types[$extension];
+
+				if (is_array($mime_type))
+				{
+					$mime_type = current($mime_type);
+				}
+			}
+		}
+
+		$header = 'Content-Type: '.$mime_type;
+
+		$this->headers[] = array($header, TRUE);
+
+		return $this;
 	}
 
 	// --------------------------------------------------------------------
@@ -141,6 +194,8 @@
 	function set_status_header($code = 200, $text = '')
 	{
 		set_status_header($code, $text);
+
+		return $this;
 	}
 
 	// --------------------------------------------------------------------
@@ -155,6 +210,8 @@
 	function enable_profiler($val = TRUE)
 	{
 		$this->enable_profiler = (is_bool($val)) ? $val : TRUE;
+
+		return $this;
 	}
 
 	// --------------------------------------------------------------------
@@ -174,6 +231,8 @@
 		{
 			$this->_profiler_sections[$section] = ($enable !== FALSE) ? TRUE : FALSE;
 		}
+
+		return $this;
 	}
 
 	// --------------------------------------------------------------------
@@ -188,6 +247,8 @@
 	function cache($time)
 	{
 		$this->cache_expiration = ( ! is_numeric($time)) ? 0 : $time;
+
+		return $this;
 	}
 
 	// --------------------------------------------------------------------
diff --git a/system/core/Router.php b/system/core/Router.php
index 6893e6e..2c78efe 100644
--- a/system/core/Router.php
+++ b/system/core/Router.php
@@ -87,7 +87,15 @@
 		}
 
 		// Load the routes.php file.
-		@include(APPPATH.'config/routes'.EXT);
+		if (is_file(APPPATH.'config/'.ENVIRONMENT.'/routes'.EXT))
+		{
+			include(APPPATH.'config/'.ENVIRONMENT.'/routes'.EXT);
+		}
+		elseif (is_file(APPPATH.'config/routes'.EXT))
+		{
+			include(APPPATH.'config/routes'.EXT);
+		}
+		
 		$this->routes = ( ! isset($route) OR ! is_array($route)) ? array() : $route;
 		unset($route);
 
diff --git a/system/database/DB_active_rec.php b/system/database/DB_active_rec.php
index ee72dbb..db84713 100644
--- a/system/database/DB_active_rec.php
+++ b/system/database/DB_active_rec.php
@@ -1020,11 +1020,11 @@
 
 		if ($query->num_rows() == 0)
 		{
-			return '0';
+			return 0;
 		}
 
 		$row = $query->row();
-		return $row->numrows;
+		return (int) $row->numrows;
 	}
 
 	// --------------------------------------------------------------------
diff --git a/system/helpers/download_helper.php b/system/helpers/download_helper.php
index 6cecd0d..e537cde 100644
--- a/system/helpers/download_helper.php
+++ b/system/helpers/download_helper.php
@@ -58,7 +58,14 @@
 		$extension = end($x);
 
 		// Load the mime types
-		@include(APPPATH.'config/mimes'.EXT);
+		if (is_file(APPPATH.'config/'.ENVIRONMENT.'/mimes'.EXT))
+		{
+			include(APPPATH.'config/'.ENVIRONMENT.'/mimes'.EXT);
+		}
+		elseif (is_file(APPPATH.'config/mimes'.EXT))
+		{
+			include(APPPATH.'config/mimes'.EXT);
+		}
 
 		// Set a default mime if we can't find it
 		if ( ! isset($mimes[$extension]))
diff --git a/system/helpers/file_helper.php b/system/helpers/file_helper.php
index 9518e48..7a35c3f 100644
--- a/system/helpers/file_helper.php
+++ b/system/helpers/file_helper.php
@@ -352,7 +352,16 @@
 
 		if ( ! is_array($mimes))
 		{
-			if ( ! require_once(APPPATH.'config/mimes.php'))
+			if (is_file(APPPATH.'config/'.ENVIRONMENT.'/mimes'.EXT))
+			{
+				include(APPPATH.'config/'.ENVIRONMENT.'/mimes'.EXT);
+			}
+			elseif (is_file(APPPATH.'config/mimes'.EXT))
+			{
+				include(APPPATH.'config/mimes'.EXT);
+			}
+
+			if ( ! is_array($mimes))
 			{
 				return FALSE;
 			}
diff --git a/system/helpers/form_helper.php b/system/helpers/form_helper.php
index 758056b..5323097 100644
--- a/system/helpers/form_helper.php
+++ b/system/helpers/form_helper.php
@@ -49,7 +49,10 @@
 			$attributes = 'method="post"';
 		}
 
-		$action = ( strpos($action, '://') === FALSE) ? $CI->config->site_url($action) : $action;
+		if ($action && strpos($action, '://') === FALSE)
+		{
+			$action = $CI->config->site_url($action);
+		}
 
 		$form = '<form action="'.$action.'"';
 
diff --git a/system/helpers/html_helper.php b/system/helpers/html_helper.php
index 68c6f59..53fc899 100644
--- a/system/helpers/html_helper.php
+++ b/system/helpers/html_helper.php
@@ -258,7 +258,16 @@
 
 		if ( ! is_array($_doctypes))
 		{
-			if ( ! require_once(APPPATH.'config/doctypes.php'))
+			if (is_file(APPPATH.'config/'.ENVIRONMENT.'/doctypes'.EXT))
+			{
+				include(APPPATH.'config/'.ENVIRONMENT.'/doctypes'.EXT);
+			}
+			elseif (is_file(APPPATH.'config/doctypes'.EXT))
+			{
+				include(APPPATH.'config/doctypes'.EXT);
+			}
+
+			if ( ! is_array($_doctypes))
 			{
 				return FALSE;
 			}
diff --git a/system/helpers/smiley_helper.php b/system/helpers/smiley_helper.php
index 463881f..6c90151 100644
--- a/system/helpers/smiley_helper.php
+++ b/system/helpers/smiley_helper.php
@@ -229,13 +229,20 @@
 {
 	function _get_smiley_array()
 	{
-		if ( ! file_exists(APPPATH.'config/smileys'.EXT))
+		if ( ! file_exists(APPPATH.'config/smileys'.EXT) AND ! file_exists(APPPATH.'config/'.ENVIRONMENT.'/smileys'.EXT))
 		{
 			return FALSE;
 		}
 
-		include(APPPATH.'config/smileys'.EXT);
-
+		if (file_exists(APPPATH.'config/'.ENVIRONMENT.'/smileys'.EXT))
+		{
+		    include(APPPATH.'config/'.ENVIRONMENT.'/smileys'.EXT);
+		}
+		else
+		{
+			include(APPPATH.'config/smileys'.EXT);
+		}
+		
 		if ( ! isset($smileys) OR ! is_array($smileys))
 		{
 			return FALSE;
diff --git a/system/helpers/text_helper.php b/system/helpers/text_helper.php
index 96afd4c..6644089 100644
--- a/system/helpers/text_helper.php
+++ b/system/helpers/text_helper.php
@@ -366,12 +366,14 @@
 {
 	function convert_accented_characters($str)
 	{
-		if ( ! file_exists(APPPATH.'config/foreign_chars'.EXT))
+		if (is_file(APPPATH.'config/'.ENVIRONMENT.'/foreign_chars'.EXT))
 		{
-			return $str;
+			include(APPPATH.'config/'.ENVIRONMENT.'/foreign_chars'.EXT);
 		}
-
-		include APPPATH.'config/foreign_chars'.EXT;
+		elseif (is_file(APPPATH.'config/foreign_chars'.EXT))
+		{
+			include(APPPATH.'config/foreign_chars'.EXT);
+		}
 
 		if ( ! isset($foreign_characters))
 		{
diff --git a/system/language/english/form_validation_lang.php b/system/language/english/form_validation_lang.php
index b018850..3f24090 100644
--- a/system/language/english/form_validation_lang.php
+++ b/system/language/english/form_validation_lang.php
@@ -19,6 +19,9 @@
 $lang['matches']			= "The %s field does not match the %s field.";
 $lang['is_natural']			= "The %s field must contain only positive numbers.";
 $lang['is_natural_no_zero']	= "The %s field must contain a number greater than zero.";
+$lang['decimal']			= "The %s field must contain a decimal number.";
+$lang['less_than']			= "The %s field must contain a number less than %s.";
+$lang['greater_than']		= "The %s field must contain a number greater than %s.";
 
 
 /* End of file form_validation_lang.php */
diff --git a/system/libraries/Session.php b/system/libraries/Session.php
index 0b94340..1822940 100644
--- a/system/libraries/Session.php
+++ b/system/libraries/Session.php
@@ -37,6 +37,7 @@
 	var $cookie_prefix				= '';
 	var $cookie_path				= '';
 	var $cookie_domain				= '';
+	var $cookie_secure				= FALSE;
 	var $sess_time_to_update		= 300;
 	var $encryption_key				= '';
 	var $flashdata_key				= 'flash';
@@ -61,7 +62,7 @@
 
 		// Set all the session preferences, which can either be set
 		// manually via the $params array above or via the config file
-		foreach (array('sess_encrypt_cookie', 'sess_use_database', 'sess_table_name', 'sess_expiration', 'sess_expire_on_close', 'sess_match_ip', 'sess_match_useragent', 'sess_cookie_name', 'cookie_path', 'cookie_domain', 'sess_time_to_update', 'time_reference', 'cookie_prefix', 'encryption_key') as $key)
+		foreach (array('sess_encrypt_cookie', 'sess_use_database', 'sess_table_name', 'sess_expiration', 'sess_expire_on_close', 'sess_match_ip', 'sess_match_useragent', 'sess_cookie_name', 'cookie_path', 'cookie_domain', 'cookie_secure', 'sess_time_to_update', 'time_reference', 'cookie_prefix', 'encryption_key') as $key)
 		{
 			$this->$key = (isset($params[$key])) ? $params[$key] : $this->CI->config->item($key);
 		}
@@ -658,8 +659,6 @@
 		}
 
 		$expire = ($this->sess_expire_on_close === TRUE) ? 0 : $this->sess_expiration + time();
-		
-		$secure_cookie = (config_item('cookie_secure') === TRUE) ? 1 : 0;
 
 		// Set the cookie
 		setcookie(
@@ -668,7 +667,7 @@
 					$expire,
 					$this->cookie_path,
 					$this->cookie_domain,
-					$secure_cookie
+					$this->cookie_secure
 				);
 	}
 
diff --git a/system/libraries/Upload.php b/system/libraries/Upload.php
index e15ea1b..5816a55 100644
--- a/system/libraries/Upload.php
+++ b/system/libraries/Upload.php
@@ -142,7 +142,7 @@
 	 */
 	public function do_upload($field = 'userfile')
 	{
-		
+
 	// Is $_FILES[$field] set? If not, no reason to continue.
 		if ( ! isset($_FILES[$field]))
 		{
@@ -951,11 +951,21 @@
 
 		if (count($this->mimes) == 0)
 		{
-			if (@require_once(APPPATH.'config/mimes'.EXT))
+			if (is_file(APPPATH.'config/'.ENVIRONMENT.'/mimes'.EXT))
 			{
-				$this->mimes = $mimes;
-				unset($mimes);
+				include(APPPATH.'config/'.ENVIRONMENT.'/mimes'.EXT);
 			}
+			elseif (is_file(APPPATH.'config/mimes'.EXT))
+			{
+				include(APPPATH.'config//mimes'.EXT);
+			}
+			else
+			{
+				return FALSE;
+			}
+
+			$this->mimes = $mimes;
+			unset($mimes);
 		}
 
 		return ( ! isset($this->mimes[$mime])) ? FALSE : $this->mimes[$mime];
diff --git a/system/libraries/User_agent.php b/system/libraries/User_agent.php
index 3774fc2..11af214 100644
--- a/system/libraries/User_agent.php
+++ b/system/libraries/User_agent.php
@@ -84,7 +84,15 @@
 	 */
 	private function _load_agent_file()
 	{
-		if ( ! @include(APPPATH.'config/user_agents'.EXT))
+		if (is_file(APPPATH.'config/'.ENVIRONMENT.'/user_agents'.EXT))
+		{
+			include(APPPATH.'config/'.ENVIRONMENT.'/user_agents'.EXT);
+		}
+		elseif (is_file(APPPATH.'config/user_agents'.EXT))
+		{
+			include(APPPATH.'config/user_agents'.EXT);
+		}
+		else
 		{
 			return FALSE;
 		}
diff --git a/user_guide/changelog.html b/user_guide/changelog.html
index d759686..bf86172 100644
--- a/user_guide/changelog.html
+++ b/user_guide/changelog.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="./toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
@@ -59,14 +59,45 @@
 
 <p>The <img src="images/reactor-bullet.png" width="16" height="16" alt="Reactor Marker" /> indicates items that were contributed to CodeIgniter via CodeIgniter Reactor.</p>
 
-<h2>Version 2.0.1</h2>
+<h2>Version 2.0.2</h2>
 <p>Release Date: n/a<br />
 Hg Tag: n/a</p>
 
 <ul>
 	<li>General changes
 		<ul>
+			<li class="reactor"><kbd>constants.php</kbd> will now be loaded from the environment folder if available.</li>
+			<li class="reactor">Added language key error logging</li>
+			<li class="reactor">Added Environment Support for Hooks.</li>
+		</ul>
+	</li>
+	<li>Database
+		<ul>
+			<li class="reactor"><kbd>$this->db->count_all_results()</kbd> will now return an integer instead of a string.</li>
+		</ul>
+	</li>
+</ul>
+
+<h3>Bug fixes for 2.0.2</h3>
+<ul>
+	<li class="reactor">Fixed a bug (Reactor #145) where the Output Library had parse_exec_vars set to protected.</li>
+	<li class="reactor">Fixed a bug (Reactor #80) where is_really_writable would create an empty file when on Windows or with safe_mode enabled.</li>
+	<li class="reactor">Fixed various bugs with User Guide.</li>
+	<li class="reactor">Added form_validation_lang entries for <kbd>decimal</kbd>, <kbd>less_than</kbd> and <kbd>greater_than</kbd>.</li>
+</ul>
+
+<h2>Version 2.0.1</h2>
+<p>Release Date: March, 15, 2011<br />
+Hg Tag: v2.0.1</p>
+
+<ul>
+	<li>General changes
+		<ul>
 			<li>Added <kbd>$config['cookie_secure']</kbd> to the config file to allow requiring a secure (HTTPS) in order to set cookies.</li>
+			<li class="reactor">Added the constant <kbd>CI_CORE</kbd> to help differentiate between Core: TRUE and Reactor: FALSE.</li>
+			<li class="reactor">Added an <kbd>ENVIRONMENT</kbd> constant in index.php, which affects PHP error reporting settings, and optionally,
+                which configuration files are loaded (see below). Read more on the <a href="general/environments.html">Handling Environments</a> page.</li>
+			<li class="reactor">Added support for <a href="libraries/config.html#environments">environment-specific</a> configuration files.</li>
 		</ul>
 	</li>
 	<li>Libraries
@@ -74,6 +105,13 @@
 			<li class="reactor">Added <kbd>decimal</kbd>, <kbd>less_than</kbd> and <kbd>greater_than</kbd> rules to the <a href="libraries/form_validation.html">Form validation Class</a>.</li>
 			<li class="reactor"><a href="libraries/input.html">Input Class</a> methods <kbd>post()</kbd> and <kbd>get()</kbd> will now return a full array if the first argument is not provided.</li>
 			<li class="reactor">Secure cookies can now be made with the <kbd>set_cookie()</kbd> helper and <a href="libraries/input.html">Input Class</a> method.</li>
+			<li class="reactor">Added <kbd>set_content_type()</kbd> to <a href="libraries/output.html">Output Class</a> to set the output <kbd>Content-Type</kbd> HTTP header based on a MIME Type or a config/mimes.php array key.</li>
+			<li class="reactor"><a href="libraries/output.html">Output Class</a> will now support method chaining.</li>
+		</ul>
+	</li>
+	<li>Helpers
+		<ul>
+			<li class="reactor">Changed the logic for <kbd>form_open()</kbd> in <a href="helpers/form_helper.html">Form helper</a>. If no value is passed it will submit to the current URL.</li>
 		</ul>
 	</li>
 </ul>
diff --git a/user_guide/database/active_record.html b/user_guide/database/active_record.html
index 30c45fd..dc06c87 100644
--- a/user_guide/database/active_record.html
+++ b/user_guide/database/active_record.html
@@ -27,7 +27,7 @@
 <div id="masthead">
 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">
 <tr>
-<td><h1>CodeIgniter User Guide Version 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
@@ -489,10 +489,10 @@
 
 <code>
 $data = array(<br />
-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'title' => 'My title' ,<br />
-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'name' => 'My Name' ,<br />
-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'date' => 'My date'<br />
-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;);<br />
+&nbsp;&nbsp;&nbsp;'title' => 'My title' ,<br />
+&nbsp;&nbsp;&nbsp;'name' => 'My Name' ,<br />
+&nbsp;&nbsp;&nbsp;'date' => 'My date'<br />
+);<br />
 <br />
 $this->db->insert('mytable', $data);
 <br /><br />
@@ -517,10 +517,35 @@
 <br /><br />
 // Produces: INSERT INTO mytable (title, content, date) VALUES ('My Title', 'My Content', 'My Date')</code>
 
-<p>The first parameter will contain the table name, the second is an associative array of values.</p>
+<p>The first parameter will contain the table name, the second is an object.</p>
 
 <p class="important"><strong>Note:</strong> All values are escaped automatically producing safer queries.</p>
 
+<h2>$this->db->insert_batch();</h2>
+<p>Generates an insert string based on the data you supply, and runs the query. You can either pass an
+<strong>array</strong> or an <strong>object</strong> to the function.  Here is an example using an array:</p>
+
+<code>
+$data = array(<br/>
+&nbsp;&nbsp;&nbsp;array(<br />
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'title' => 'My title' ,<br />
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'name' => 'My Name' ,<br />
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'date' => 'My date'<br />
+&nbsp;&nbsp;&nbsp;),<br />
+&nbsp;&nbsp;&nbsp;array(<br />
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'title' => 'Another title' ,<br />
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'name' => 'Another Name' ,<br />
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'date' => 'Another date'<br />
+&nbsp;&nbsp;&nbsp;)<br/>
+);<br />
+<br />
+$this->db->insert_batch('mytable', $data);
+<br /><br />
+// Produces: INSERT INTO mytable (title, name, date) VALUES ('My title', 'My name', 'My date'),  ('Another title', 'Another name', 'Another date')</code>
+
+<p>The first parameter will contain the table name, the second is an associative array of values.</p>
+
+<p class="important"><strong>Note:</strong> All values are escaped automatically producing safer queries.</p>
 
 
 
diff --git a/user_guide/database/caching.html b/user_guide/database/caching.html
index ec2e5c4..4a18cbd 100644
--- a/user_guide/database/caching.html
+++ b/user_guide/database/caching.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/database/call_function.html b/user_guide/database/call_function.html
index e34369f..1f6079f 100644
--- a/user_guide/database/call_function.html
+++ b/user_guide/database/call_function.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/database/configuration.html b/user_guide/database/configuration.html
index d71cd34..60e7065 100644
--- a/user_guide/database/configuration.html
+++ b/user_guide/database/configuration.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/database/connecting.html b/user_guide/database/connecting.html
index 1e97198..8f923b1 100644
--- a/user_guide/database/connecting.html
+++ b/user_guide/database/connecting.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/database/examples.html b/user_guide/database/examples.html
index c0eabd8..10daef7 100644
--- a/user_guide/database/examples.html
+++ b/user_guide/database/examples.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/database/fields.html b/user_guide/database/fields.html
index b1dbd00..8299c50 100644
--- a/user_guide/database/fields.html
+++ b/user_guide/database/fields.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/database/forge.html b/user_guide/database/forge.html
index d18db58..c7b141e 100644
--- a/user_guide/database/forge.html
+++ b/user_guide/database/forge.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/database/helpers.html b/user_guide/database/helpers.html
index f4ad8df..b8a5785 100644
--- a/user_guide/database/helpers.html
+++ b/user_guide/database/helpers.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/database/index.html b/user_guide/database/index.html
index cc2d216..1dabb56 100644
--- a/user_guide/database/index.html
+++ b/user_guide/database/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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/database/queries.html b/user_guide/database/queries.html
index e3d6ab1..b69f226 100644
--- a/user_guide/database/queries.html
+++ b/user_guide/database/queries.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/database/results.html b/user_guide/database/results.html
index e9a5cb4..aec6c97 100644
--- a/user_guide/database/results.html
+++ b/user_guide/database/results.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/database/table_data.html b/user_guide/database/table_data.html
index 90ce478..d958029 100644
--- a/user_guide/database/table_data.html
+++ b/user_guide/database/table_data.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/database/transactions.html b/user_guide/database/transactions.html
index 448e468..f6db301 100644
--- a/user_guide/database/transactions.html
+++ b/user_guide/database/transactions.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/database/utilities.html b/user_guide/database/utilities.html
index 4a8b673..268cf49 100644
--- a/user_guide/database/utilities.html
+++ b/user_guide/database/utilities.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/doc_style/index.html b/user_guide/doc_style/index.html
index 2d2718d..eb5986b 100644
--- a/user_guide/doc_style/index.html
+++ b/user_guide/doc_style/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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/general/alternative_php.html b/user_guide/general/alternative_php.html
index c843f2f..f4ec6cc 100644
--- a/user_guide/general/alternative_php.html
+++ b/user_guide/general/alternative_php.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/general/ancillary_classes.html b/user_guide/general/ancillary_classes.html
index fc5d0be..d343cdc 100644
--- a/user_guide/general/ancillary_classes.html
+++ b/user_guide/general/ancillary_classes.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/general/autoloader.html b/user_guide/general/autoloader.html
index e05ee03..81ae311 100644
--- a/user_guide/general/autoloader.html
+++ b/user_guide/general/autoloader.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/general/caching.html b/user_guide/general/caching.html
index 440896b..61b586f 100644
--- a/user_guide/general/caching.html
+++ b/user_guide/general/caching.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
@@ -68,7 +68,7 @@
 <h2>How Does Caching Work?</h2>
 
 <p>Caching can be enabled on a per-page basis, and you can set the length of time that a page should remain cached before being refreshed.
-When a page is loaded for the first time, the cache file will be written to your <dfn>system/cache</dfn> folder.  On subsequent page loads the cache file will be retrieved
+When a page is loaded for the first time, the cache file will be written to your <dfn>application/cache</dfn> folder.  On subsequent page loads the cache file will be retrieved
 and sent to the requesting user's browser.  If it has expired, it will be deleted and refreshed before being sent to the browser.</p>
 
 <p>Note: The Benchmark tag is not cached so you can still view your page load speed when caching is enabled.</p>
@@ -86,7 +86,7 @@
 
 <p class="important"><strong>Warning:</strong> Because of the way CodeIgniter stores content for output, caching will only work if you are generating display for your controller with a <a href="./views.html">view</a>.</p>
 <p class="important"><strong>Note:</strong> Before the cache files can be written you must set the file permissions on your
-<dfn>system/cache</dfn> folder such that it is writable.</p>
+<dfn>application/cache</dfn> folder such that it is writable.</p>
 
 <h2>Deleting Caches</h2>
 
diff --git a/user_guide/general/common_functions.html b/user_guide/general/common_functions.html
index 03c4553..225269e 100644
--- a/user_guide/general/common_functions.html
+++ b/user_guide/general/common_functions.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/general/controllers.html b/user_guide/general/controllers.html
index 91e700a..2da98b6 100644
--- a/user_guide/general/controllers.html
+++ b/user_guide/general/controllers.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
@@ -98,7 +98,7 @@
 &lt;?php
 class Blog extends CI_Controller {
 
-	function index()
+	public function index()
 	{
 		echo 'Hello World!';
 	}
@@ -153,12 +153,12 @@
 &lt;?php
 class Blog extends CI_Controller {
 
-	function index()
+	public function index()
 	{
 		echo 'Hello World!';
 	}
 
-	function comments()
+	public function comments()
 	{
 		echo 'Look at this!';
 	}
@@ -187,7 +187,7 @@
 &lt;?php<br />
 class Products extends CI_Controller {<br />
 <br />
-&nbsp;&nbsp;&nbsp;&nbsp;function shoes($sandals, $id)<br />
+&nbsp;&nbsp;&nbsp;&nbsp;public function shoes($sandals, $id)<br />
 &nbsp;&nbsp;&nbsp;&nbsp;{<br />
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;echo $sandals;<br />
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;echo $id;<br />
@@ -220,7 +220,7 @@
 <p>As noted above, the second segment of the URI typically determines which function in the controller gets called.
 CodeIgniter permits you to override this behavior through the use of the <kbd>_remap()</kbd> function:</p>
 
-<code>function _remap()<br />
+<code>public function _remap()<br />
 {<br />
 &nbsp;&nbsp;&nbsp;&nbsp;// Some code here...<br />
 }</code>
@@ -231,7 +231,7 @@
 
 <p>The overridden function call (typically the second segment of the URI) will be passed as a parameter to the <kbd>_remap()</kbd> function:</p>
 
-<code>function _remap(<var>$method</var>)<br />
+<code>public function _remap(<var>$method</var>)<br />
 {<br />
 &nbsp;&nbsp;&nbsp;&nbsp;if ($method == 'some_method')<br />
 &nbsp;&nbsp;&nbsp;&nbsp;{<br />
@@ -245,10 +245,10 @@
 
 <p>Any extra segments after the method name are passed into <kbd>_remap()</kbd> as an optional second parameter. This array can be used in combination with PHP's <a href="http://php.net/call_user_func_array">call_user_func_array</a> to emulate CodeIgniter's default behavior.</p>
 
-<code>function _remap($method, $params = array())<br />
+<code>public function _remap($method, $params = array())<br />
 {<br />
 &nbsp;&nbsp;&nbsp;&nbsp;$method = 'process_'.$method;<br />
-&nbsp;&nbsp;&nbsp;&nbsp;if (method_exists($this, $method)<br />
+&nbsp;&nbsp;&nbsp;&nbsp;if (method_exists($this, $method))<br />
 &nbsp;&nbsp;&nbsp;&nbsp;{<br />
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return call_user_func_array(array($this, $method), $params);<br />
 &nbsp;&nbsp;&nbsp;&nbsp;}<br />
@@ -270,7 +270,7 @@
 <p>Here is an example:</p>
 
 <code>
-function _output($output)<br />
+public function _output($output)<br />
 {<br />
 &nbsp;&nbsp;&nbsp;&nbsp;echo $output;<br />
 }</code>
@@ -298,7 +298,7 @@
 underscore as the name prefix and it will not be served via a URL request. For example, if you were to have a function like this:</p>
 
 <code>
-function _utility()<br />
+private function _utility()<br />
 {<br />
 &nbsp;&nbsp;// some code<br />
 }</code>
@@ -346,7 +346,7 @@
 &lt;?php<br />
 class <kbd>Blog</kbd> extends CI_Controller {<br />
 <br />
-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;function <kbd>__construct()</kbd><br />
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;public function <kbd>__construct()</kbd><br />
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{<br />
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<var>parent::__construct();</var><br />
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;// Your own constructor code<br />
diff --git a/user_guide/general/core_classes.html b/user_guide/general/core_classes.html
index 11410a3..4edad83 100644
--- a/user_guide/general/core_classes.html
+++ b/user_guide/general/core_classes.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/general/creating_drivers.html b/user_guide/general/creating_drivers.html
index 6208dd5..3d6640d 100644
--- a/user_guide/general/creating_drivers.html
+++ b/user_guide/general/creating_drivers.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/general/creating_libraries.html b/user_guide/general/creating_libraries.html
index b7b66f0..6d65f65 100644
--- a/user_guide/general/creating_libraries.html
+++ b/user_guide/general/creating_libraries.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
@@ -101,11 +101,11 @@
 <br /><br />
 class Someclass {<br />
 <br />
-&nbsp;&nbsp;&nbsp;&nbsp;function some_function()<br />
+&nbsp;&nbsp;&nbsp;&nbsp;public function some_function()<br />
 &nbsp;&nbsp;&nbsp;&nbsp;{<br />
 &nbsp;&nbsp;&nbsp;&nbsp;}<br />
 }<br /><br />
-?&gt;</code>
+/* End of file Someclass.php */</code>
 
 
 <h2>Using Your Class</h2>
@@ -140,7 +140,7 @@
 <br />
 class Someclass {<br />
 <br />
-&nbsp;&nbsp;&nbsp;&nbsp;function __construct($params)<br />
+&nbsp;&nbsp;&nbsp;&nbsp;public function __construct($params)<br />
 &nbsp;&nbsp;&nbsp;&nbsp;{<br />
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;// Do something with $params<br />
 &nbsp;&nbsp;&nbsp;&nbsp;}<br />
@@ -243,7 +243,7 @@
 <code>
 class MY_Email extends CI_Email {<br />
 <br />
-&nbsp;&nbsp;&nbsp;&nbsp;function __construct()<br />
+&nbsp;&nbsp;&nbsp;&nbsp;public function __construct()<br />
 &nbsp;&nbsp;&nbsp;&nbsp;{<br />
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;parent::__construct();<br />
 &nbsp;&nbsp;&nbsp;&nbsp;}<br />
diff --git a/user_guide/general/credits.html b/user_guide/general/credits.html
index b691592..7977956 100644
--- a/user_guide/general/credits.html
+++ b/user_guide/general/credits.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/general/drivers.html b/user_guide/general/drivers.html
index 83ed985..2b9f78c 100644
--- a/user_guide/general/drivers.html
+++ b/user_guide/general/drivers.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/general/environments.html b/user_guide/general/environments.html
new file mode 100644
index 0000000..76fe214
--- /dev/null
+++ b/user_guide/general/environments.html
@@ -0,0 +1,126 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
+<head>
+
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+<title>Handling Multiple Environments : CodeIgniter User Guide</title>
+
+<style type='text/css' media='all'>@import url('../userguide.css');</style>
+<link rel='stylesheet' type='text/css' media='all' href='../userguide.css' />
+
+<script type="text/javascript" src="../nav/nav.js"></script>
+<script type="text/javascript" src="../nav/prototype.lite.js"></script>
+<script type="text/javascript" src="../nav/moo.fx.js"></script>
+<script type="text/javascript" src="../nav/user_guide_menu.js"></script>
+
+<meta http-equiv='expires' content='-1' />
+<meta http-equiv= 'pragma' content='no-cache' />
+<meta name='robots' content='all' />
+<meta name='author' content='ExpressionEngine Dev Team' />
+<meta name='description' content='CodeIgniter User Guide' />
+
+</head>
+<body>
+
+<!-- START NAVIGATION -->
+<div id="nav"><div id="nav_inner"><script type="text/javascript">create_menu('../');</script></div></div>
+<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle_darker.jpg" width="154" height="43" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div>
+<div id="masthead">
+<table cellpadding="0" cellspacing="0" border="0" style="width:100%">
+<tr>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
+<td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
+</tr>
+</table>
+</div>
+<!-- END NAVIGATION -->
+
+
+<!-- START BREADCRUMB -->
+<table cellpadding="0" cellspacing="0" border="0" style="width:100%">
+<tr>
+<td id="breadcrumb">
+<a href="http://codeigniter.com/">CodeIgniter Home</a> &nbsp;&#8250;&nbsp;
+<a href="../index.html">User Guide Home</a> &nbsp;&#8250;&nbsp;
+Handling Multiple Environments
+</td>
+<td id="searchbox"><form method="get" action="http://www.google.com/search"><input type="hidden" name="as_sitesearch" id="as_sitesearch" value="codeigniter.com/user_guide/" />Search User Guide&nbsp; <input type="text" class="input" style="width:200px;" name="q" id="q" size="31" maxlength="255" value="" />&nbsp;<input type="submit" class="submit" name="sa" value="Go" /></form></td>
+</tr>
+</table>
+<!-- END BREADCRUMB -->
+
+<br clear="all" />
+
+
+<!-- START CONTENT -->
+<div id="content">
+
+<h1>Handling Multiple Environments</h1>
+
+<p>
+    Developers often desire different system behavior depending on whether
+    an application is running in a development or production
+    environment. For example, verbose error output is something that would
+    be useful while developing an application, but it may also pose a security issue when "live".
+</p>
+
+<h2>The ENVIRONMENT Constant</h2>
+
+<p>
+    By default, CodeIgniter comes with the environment constant set to
+    '<kbd>development</kbd>'. At the top of index.php, you will see:
+</p>
+
+<code>
+define('<var>ENVIRONMENT</var>', '<var>development</var>');
+</code>
+
+<p>
+    In addition to affecting some basic framework behavior (see the next section),
+    you may use this constant in your own development to differentiate
+    between which environment you are running in.
+</p>
+
+<h2>Effects On Default Framework Behavior</h2>
+
+<p>
+    There are some places in the CodeIgniter system where the <kbd>ENVIRONMENT</kbd>
+    constant is used. This section describes how default framework behavior is
+    affected.
+</p>
+
+<h3>Error Reporting</h3>
+
+<p>
+    Setting the <kbd>ENVIRONMENT</kbd> constant to a value of '<kbd>development</kbd>' will
+    cause all PHP errors to be rendered to the browser when they occur. Conversely,
+    setting the constant to '<kbd>production</kbd>' will disable all error output. Disabling
+    error reporting in production is a <a href="security.html">good security practice</a>.
+</p>
+
+<h3>Configuration Files</h3>
+
+<p>
+    Optionally, you can have CodeIgniter load environment-specific
+    configuration files. This may be useful for managing things like differing API keys
+    across multiple environments. This is described in more detail in the
+    environment section of the <a href="../libraries/config.html#environments">Config Class</a> documentation.
+</p>
+
+</div>
+<!-- END CONTENT -->
+
+
+<div id="footer">
+<p>
+Previous Topic:&nbsp;&nbsp;<a href="managing_apps.html">Managing Applications</a>
+&nbsp;&nbsp;&nbsp;&middot;&nbsp;&nbsp;
+<a href="#top">Top of Page</a>&nbsp;&nbsp;&nbsp;&middot;&nbsp;&nbsp;
+<a href="../index.html">User Guide Home</a>&nbsp;&nbsp;&nbsp;&middot;&nbsp;&nbsp;
+Next Topic:&nbsp;&nbsp;<a href="alternative_php.html">Alternative PHP Syntax</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>
+</div>
+
+</body>
+</html>
\ No newline at end of file
diff --git a/user_guide/general/errors.html b/user_guide/general/errors.html
index 98af3f0..ece80b2 100644
--- a/user_guide/general/errors.html
+++ b/user_guide/general/errors.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
@@ -115,7 +115,7 @@
 
 
 <p class="important"><strong>Note:</strong> In order for the log file to actually be written, the
- "logs" folder must be writable.  In addition, you must set the "threshold" for logging.
+ "logs" folder must be writable.  In addition, you must set the "threshold" for logging in <dfn>application/config/config.php</dfn>.
 You might, for example, only want error messages to be logged, and not the other two types.
 If you set it to zero logging will be disabled.</p>
 
diff --git a/user_guide/general/helpers.html b/user_guide/general/helpers.html
index cc3e226..95693a5 100644
--- a/user_guide/general/helpers.html
+++ b/user_guide/general/helpers.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/general/hooks.html b/user_guide/general/hooks.html
index 1a77389..a72e84a 100644
--- a/user_guide/general/hooks.html
+++ b/user_guide/general/hooks.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/general/libraries.html b/user_guide/general/libraries.html
index 82c409b..58ddc6d 100644
--- a/user_guide/general/libraries.html
+++ b/user_guide/general/libraries.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/general/managing_apps.html b/user_guide/general/managing_apps.html
index 4b4493d..b08d4aa 100644
--- a/user_guide/general/managing_apps.html
+++ b/user_guide/general/managing_apps.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/general/models.html b/user_guide/general/models.html
index 9afec7e..2cd8e4d 100644
--- a/user_guide/general/models.html
+++ b/user_guide/general/models.html
@@ -27,7 +27,7 @@
 <div id="masthead">
 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">
 <tr>
-<td><h1>CodeIgniter User Guide Version 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/general/profiling.html b/user_guide/general/profiling.html
index c8d7eb4..868cce7 100644
--- a/user_guide/general/profiling.html
+++ b/user_guide/general/profiling.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/general/quick_reference.html b/user_guide/general/quick_reference.html
index 388f259..cb26480 100644
--- a/user_guide/general/quick_reference.html
+++ b/user_guide/general/quick_reference.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/general/requirements.html b/user_guide/general/requirements.html
index fbe3826..d8043ae 100644
--- a/user_guide/general/requirements.html
+++ b/user_guide/general/requirements.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/general/reserved_names.html b/user_guide/general/reserved_names.html
index c12ee6e..2dbbb5b 100644
--- a/user_guide/general/reserved_names.html
+++ b/user_guide/general/reserved_names.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/general/routing.html b/user_guide/general/routing.html
index e973d23..4413ef9 100644
--- a/user_guide/general/routing.html
+++ b/user_guide/general/routing.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/general/security.html b/user_guide/general/security.html
index 8a41dff..c47b5b2 100644
--- a/user_guide/general/security.html
+++ b/user_guide/general/security.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
@@ -87,6 +87,23 @@
 <p>During system initialization all global variables are unset, except those found in the $_POST and $_COOKIE arrays. The unsetting
 routine is effectively the same as register_globals = off.</p>
 
+<a name="error_reporting"></a>
+<h2>error_reporting</h2>
+
+<p>
+    In production environments, it is typically desirable to disable PHP's 
+    error reporting by setting the internal error_reporting flag to a value of 0. This disables native PHP
+    errors from being rendered as output, which may potentially contain
+    sensitive information.
+</p>
+
+<p>
+    Setting CodeIgniter's <kbd>ENVIRONMENT</kbd> constant in index.php to a
+    value of '<kbd>production</kbd>' will turn off these errors. In development
+    mode, it is recommended that a value of '<kbd>development</kbd>' is used.
+    More information about differentiating between environments can be found
+    on the <a href="environments.html">Handling Environments</a> page.
+</p>
 
 <h2>magic_quotes_runtime</h2>
 
diff --git a/user_guide/general/styleguide.html b/user_guide/general/styleguide.html
index caddddc..8218608 100644
--- a/user_guide/general/styleguide.html
+++ b/user_guide/general/styleguide.html
@@ -34,7 +34,7 @@
 <div id="masthead">
 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">
 <tr>
-<td><h1>CodeIgniter User Guide Version 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/general/urls.html b/user_guide/general/urls.html
index 4ce6c39..29ed8ea 100644
--- a/user_guide/general/urls.html
+++ b/user_guide/general/urls.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/general/views.html b/user_guide/general/views.html
index 746f7b8..2a06a9c 100644
--- a/user_guide/general/views.html
+++ b/user_guide/general/views.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/helpers/array_helper.html b/user_guide/helpers/array_helper.html
index 2bbf89c..75c069d 100644
--- a/user_guide/helpers/array_helper.html
+++ b/user_guide/helpers/array_helper.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/helpers/captcha_helper.html b/user_guide/helpers/captcha_helper.html
index 3a863c9..ab684f3 100644
--- a/user_guide/helpers/captcha_helper.html
+++ b/user_guide/helpers/captcha_helper.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
@@ -68,7 +68,7 @@
 
 <p>The following functions are available:</p>
 
-<h2>captcha_create(<var>$data</var>)</h2>
+<h2>create_captcha(<var>$data</var>)</h2>
 
 <p>Takes an array of information to generate the CAPTCHA as input and creates the image to your specifications, returning an array of associative data about the image.</p>
 
diff --git a/user_guide/helpers/cookie_helper.html b/user_guide/helpers/cookie_helper.html
index 860979b..e2a04fe 100644
--- a/user_guide/helpers/cookie_helper.html
+++ b/user_guide/helpers/cookie_helper.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/helpers/date_helper.html b/user_guide/helpers/date_helper.html
index ba9aa8e..e22f282 100644
--- a/user_guide/helpers/date_helper.html
+++ b/user_guide/helpers/date_helper.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/helpers/directory_helper.html b/user_guide/helpers/directory_helper.html
index d9a3d0e..bde72fa 100644
--- a/user_guide/helpers/directory_helper.html
+++ b/user_guide/helpers/directory_helper.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/helpers/download_helper.html b/user_guide/helpers/download_helper.html
index 7fc9c44..c2653e3 100644
--- a/user_guide/helpers/download_helper.html
+++ b/user_guide/helpers/download_helper.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/helpers/email_helper.html b/user_guide/helpers/email_helper.html
index 6e11ba0..9b21ca9 100644
--- a/user_guide/helpers/email_helper.html
+++ b/user_guide/helpers/email_helper.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/helpers/file_helper.html b/user_guide/helpers/file_helper.html
index 85a76e1..6f61f42 100644
--- a/user_guide/helpers/file_helper.html
+++ b/user_guide/helpers/file_helper.html
@@ -27,7 +27,7 @@
 <div id="masthead">
 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">
 <tr>
-<td><h1>CodeIgniter User Guide Version 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/helpers/form_helper.html b/user_guide/helpers/form_helper.html
index 62544c4..0a84fde 100644
--- a/user_guide/helpers/form_helper.html
+++ b/user_guide/helpers/form_helper.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/helpers/html_helper.html b/user_guide/helpers/html_helper.html
index 07fd6d3..c7ab413 100644
--- a/user_guide/helpers/html_helper.html
+++ b/user_guide/helpers/html_helper.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/helpers/inflector_helper.html b/user_guide/helpers/inflector_helper.html
index bd44fea..3481739 100644
--- a/user_guide/helpers/inflector_helper.html
+++ b/user_guide/helpers/inflector_helper.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/helpers/language_helper.html b/user_guide/helpers/language_helper.html
index 5c0cb26..82ccbce 100644
--- a/user_guide/helpers/language_helper.html
+++ b/user_guide/helpers/language_helper.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/helpers/number_helper.html b/user_guide/helpers/number_helper.html
index afe5bc3..23db582 100644
--- a/user_guide/helpers/number_helper.html
+++ b/user_guide/helpers/number_helper.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/helpers/path_helper.html b/user_guide/helpers/path_helper.html
index 205cce2..c0a90f8 100644
--- a/user_guide/helpers/path_helper.html
+++ b/user_guide/helpers/path_helper.html
@@ -27,7 +27,7 @@
 <div id="masthead">
 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">
 <tr>
-<td><h1>CodeIgniter User Guide Version 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/helpers/security_helper.html b/user_guide/helpers/security_helper.html
index 2dba7bb..03c25fc 100644
--- a/user_guide/helpers/security_helper.html
+++ b/user_guide/helpers/security_helper.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/helpers/smiley_helper.html b/user_guide/helpers/smiley_helper.html
index 18df987..7021b73 100644
--- a/user_guide/helpers/smiley_helper.html
+++ b/user_guide/helpers/smiley_helper.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/helpers/string_helper.html b/user_guide/helpers/string_helper.html
index 11b6b27..701618b 100644
--- a/user_guide/helpers/string_helper.html
+++ b/user_guide/helpers/string_helper.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/helpers/text_helper.html b/user_guide/helpers/text_helper.html
index a7f0f2b..7d646cb 100644
--- a/user_guide/helpers/text_helper.html
+++ b/user_guide/helpers/text_helper.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/helpers/typography_helper.html b/user_guide/helpers/typography_helper.html
index 425c20e..bcc11ee 100644
--- a/user_guide/helpers/typography_helper.html
+++ b/user_guide/helpers/typography_helper.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/helpers/url_helper.html b/user_guide/helpers/url_helper.html
index 6d8bdc2..497bdb4 100644
--- a/user_guide/helpers/url_helper.html
+++ b/user_guide/helpers/url_helper.html
@@ -27,7 +27,7 @@
 <div id="masthead">
 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">
 <tr>
-<td><h1>CodeIgniter User Guide Version 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/helpers/xml_helper.html b/user_guide/helpers/xml_helper.html
index 446a01d..d7482c1 100644
--- a/user_guide/helpers/xml_helper.html
+++ b/user_guide/helpers/xml_helper.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/index.html b/user_guide/index.html
index 882eec0..23fcd1c 100644
--- a/user_guide/index.html
+++ b/user_guide/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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/installation/downloads.html b/user_guide/installation/downloads.html
index ad65330..f27eef0 100644
--- a/user_guide/installation/downloads.html
+++ b/user_guide/installation/downloads.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
@@ -58,27 +58,28 @@
 <h1>Downloading CodeIgniter</h1>
 
 <ul>
-<li><a href="http://codeigniter.com/downloads/">CodeIgniter V 2.0.0 (Current version)</a></li>
-<li><a href="http://codeigniter.com/download_files/CodeIgniter_1.7.3.zip">CodeIgniter V 1.7.3</a></li>
-<li><a href="http://codeigniter.com/download_files/CodeIgniter_1.7.2.zip">CodeIgniter V 1.7.2</a></li>
-<li><a href="http://codeigniter.com/download_files/CodeIgniter_1.7.1.zip">CodeIgniter V 1.7.1</a></li>
-<li><a href="http://codeigniter.com/download_files/CodeIgniter_1.7.0.zip">CodeIgniter V 1.7.0</a></li>
-<li><a href="http://codeigniter.com/download_files/CodeIgniter_1.6.3.zip">CodeIgniter V 1.6.3</a></li>
-<li><a href="http://codeigniter.com/download_files/CodeIgniter_1.6.2.zip">CodeIgniter V 1.6.2</a></li>
-<li><a href="http://codeigniter.com/download_files/CodeIgniter_1.6.1.zip">CodeIgniter V 1.6.1</a></li>
-<li><a href="http://codeigniter.com/download_files/CodeIgniter_1.6.0.zip">CodeIgniter V 1.6.0</a></li>
-<li><a href="http://codeigniter.com/download_files/CodeIgniter_1.5.4.zip">CodeIgniter V 1.5.4</a></li>
-<li><a href="http://codeigniter.com/download_files/CodeIgniter_1.5.3.zip">CodeIgniter V 1.5.3</a></li>
-<li><a href="http://codeigniter.com/download_files/CodeIgniter_1.5.2.zip">CodeIgniter V 1.5.2</a></li>
-<li><a href="http://codeigniter.com/download_files/CodeIgniter_1.5.1.zip">CodeIgniter V 1.5.1</a></li>
-<li><a href="http://codeigniter.com/download_files/CodeIgniter_1.4.1.zip">CodeIgniter V 1.4.1</a></li>
-<li><a href="http://codeigniter.com/download_files/CodeIgniter_1.3.3.zip">CodeIgniter V 1.3.3</a></li>
-<li><a href="http://codeigniter.com/download_files/CodeIgniter_1.3.2.zip">CodeIgniter V 1.3.2</a></li>
-<li><a href="http://codeigniter.com/download_files/CodeIgniter_1.3.1.zip">CodeIgniter V 1.3.1</a></li>
-<li><a href="http://codeigniter.com/download_files/CodeIgniter_1.3.zip">CodeIgniter V 1.3</a></li>
-<li><a href="http://codeigniter.com/download_files/CodeIgniter_1.2.zip">CodeIgniter V 1.2</a></li>
-<li><a href="http://codeigniter.com/download_files/CodeIgniter_1.1b.zip">CodeIgniter V 1.1</a></li>
-<li><a href="http://codeigniter.com/download_files/CodeIgniter_1.0b.zip">CodeIgniter V 1.0</a></li>
+	<li><a href="http://codeigniter.com/downloads/">CodeIgniter V 2.0.1 (Current version)</a></li>
+	<li><a href="http://codeigniter.com/download_files/CodeIgniter_2.0.0.zip">CodeIgniter V 2.0.0</a></li>
+	<li><a href="http://codeigniter.com/download_files/CodeIgniter_1.7.3.zip">CodeIgniter V 1.7.3</a></li>
+	<li><a href="http://codeigniter.com/download_files/CodeIgniter_1.7.2.zip">CodeIgniter V 1.7.2</a></li>
+	<li><a href="http://codeigniter.com/download_files/CodeIgniter_1.7.1.zip">CodeIgniter V 1.7.1</a></li>
+	<li><a href="http://codeigniter.com/download_files/CodeIgniter_1.7.0.zip">CodeIgniter V 1.7.0</a></li>
+	<li><a href="http://codeigniter.com/download_files/CodeIgniter_1.6.3.zip">CodeIgniter V 1.6.3</a></li>
+	<li><a href="http://codeigniter.com/download_files/CodeIgniter_1.6.2.zip">CodeIgniter V 1.6.2</a></li>
+	<li><a href="http://codeigniter.com/download_files/CodeIgniter_1.6.1.zip">CodeIgniter V 1.6.1</a></li>
+	<li><a href="http://codeigniter.com/download_files/CodeIgniter_1.6.0.zip">CodeIgniter V 1.6.0</a></li>
+	<li><a href="http://codeigniter.com/download_files/CodeIgniter_1.5.4.zip">CodeIgniter V 1.5.4</a></li>
+	<li><a href="http://codeigniter.com/download_files/CodeIgniter_1.5.3.zip">CodeIgniter V 1.5.3</a></li>
+	<li><a href="http://codeigniter.com/download_files/CodeIgniter_1.5.2.zip">CodeIgniter V 1.5.2</a></li>
+	<li><a href="http://codeigniter.com/download_files/CodeIgniter_1.5.1.zip">CodeIgniter V 1.5.1</a></li>
+	<li><a href="http://codeigniter.com/download_files/CodeIgniter_1.4.1.zip">CodeIgniter V 1.4.1</a></li>
+	<li><a href="http://codeigniter.com/download_files/CodeIgniter_1.3.3.zip">CodeIgniter V 1.3.3</a></li>
+	<li><a href="http://codeigniter.com/download_files/CodeIgniter_1.3.2.zip">CodeIgniter V 1.3.2</a></li>
+	<li><a href="http://codeigniter.com/download_files/CodeIgniter_1.3.1.zip">CodeIgniter V 1.3.1</a></li>
+	<li><a href="http://codeigniter.com/download_files/CodeIgniter_1.3.zip">CodeIgniter V 1.3</a></li>
+	<li><a href="http://codeigniter.com/download_files/CodeIgniter_1.2.zip">CodeIgniter V 1.2</a></li>
+	<li><a href="http://codeigniter.com/download_files/CodeIgniter_1.1b.zip">CodeIgniter V 1.1</a></li>
+	<li><a href="http://codeigniter.com/download_files/CodeIgniter_1.0b.zip">CodeIgniter V 1.0</a></li>
 </ul>
 
 
diff --git a/user_guide/installation/index.html b/user_guide/installation/index.html
index 9a611eb..5d26a42 100644
--- a/user_guide/installation/index.html
+++ b/user_guide/installation/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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
@@ -74,6 +74,12 @@
 
 <p>After moving them, open your main <kdb>index.php</kbd> file and set the <samp>$system_folder</samp> and <samp>$application_folder</samp> variables, preferably with a full path, e.g. '<dfn>/www/MyUser/system</dfn>'.</p>
 
+<p>
+    One additional measure to take in production environments is to disable
+    PHP error reporting and any other development-only functionality. In CodeIgniter,
+    this can be done by setting the <kbd>ENVIRONMENT</kbd> constant, which is
+    more fully described on the <a href="../general/security.html">security page</a>.
+</p>
 
 <p>That's it!</p>
 
diff --git a/user_guide/installation/troubleshooting.html b/user_guide/installation/troubleshooting.html
index c1c423a..aeb9c44 100644
--- a/user_guide/installation/troubleshooting.html
+++ b/user_guide/installation/troubleshooting.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/installation/upgrade_120.html b/user_guide/installation/upgrade_120.html
index da49549..765da68 100644
--- a/user_guide/installation/upgrade_120.html
+++ b/user_guide/installation/upgrade_120.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/installation/upgrade_130.html b/user_guide/installation/upgrade_130.html
index 7591776..ec4aa5c 100644
--- a/user_guide/installation/upgrade_130.html
+++ b/user_guide/installation/upgrade_130.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/installation/upgrade_131.html b/user_guide/installation/upgrade_131.html
index a2f7425..18a2f8a 100644
--- a/user_guide/installation/upgrade_131.html
+++ b/user_guide/installation/upgrade_131.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/installation/upgrade_132.html b/user_guide/installation/upgrade_132.html
index e0e5622..dc5bffe 100644
--- a/user_guide/installation/upgrade_132.html
+++ b/user_guide/installation/upgrade_132.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/installation/upgrade_133.html b/user_guide/installation/upgrade_133.html
index 1fb537a..8337556 100644
--- a/user_guide/installation/upgrade_133.html
+++ b/user_guide/installation/upgrade_133.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/installation/upgrade_140.html b/user_guide/installation/upgrade_140.html
index 9da635c..0993e6b 100644
--- a/user_guide/installation/upgrade_140.html
+++ b/user_guide/installation/upgrade_140.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/installation/upgrade_141.html b/user_guide/installation/upgrade_141.html
index f1dad54..8f13662 100644
--- a/user_guide/installation/upgrade_141.html
+++ b/user_guide/installation/upgrade_141.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/installation/upgrade_150.html b/user_guide/installation/upgrade_150.html
index dd5a90d..c709685 100644
--- a/user_guide/installation/upgrade_150.html
+++ b/user_guide/installation/upgrade_150.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/installation/upgrade_152.html b/user_guide/installation/upgrade_152.html
index f548e25..9313058 100644
--- a/user_guide/installation/upgrade_152.html
+++ b/user_guide/installation/upgrade_152.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/installation/upgrade_153.html b/user_guide/installation/upgrade_153.html
index d76d8f1..e000d17 100644
--- a/user_guide/installation/upgrade_153.html
+++ b/user_guide/installation/upgrade_153.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/installation/upgrade_154.html b/user_guide/installation/upgrade_154.html
index 4c534ff..c6338c6 100644
--- a/user_guide/installation/upgrade_154.html
+++ b/user_guide/installation/upgrade_154.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/installation/upgrade_160.html b/user_guide/installation/upgrade_160.html
index 366826f..cbdbaff 100644
--- a/user_guide/installation/upgrade_160.html
+++ b/user_guide/installation/upgrade_160.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/installation/upgrade_161.html b/user_guide/installation/upgrade_161.html
index c809b63..d279f32 100644
--- a/user_guide/installation/upgrade_161.html
+++ b/user_guide/installation/upgrade_161.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/installation/upgrade_162.html b/user_guide/installation/upgrade_162.html
index f4792c2..ca9fd92 100644
--- a/user_guide/installation/upgrade_162.html
+++ b/user_guide/installation/upgrade_162.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/installation/upgrade_163.html b/user_guide/installation/upgrade_163.html
index 915a723..dac67e3 100644
--- a/user_guide/installation/upgrade_163.html
+++ b/user_guide/installation/upgrade_163.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/installation/upgrade_170.html b/user_guide/installation/upgrade_170.html
index d286cf2..4410836 100644
--- a/user_guide/installation/upgrade_170.html
+++ b/user_guide/installation/upgrade_170.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/installation/upgrade_171.html b/user_guide/installation/upgrade_171.html
index 6058232..4e5ec69 100644
--- a/user_guide/installation/upgrade_171.html
+++ b/user_guide/installation/upgrade_171.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/installation/upgrade_172.html b/user_guide/installation/upgrade_172.html
index b5c95b1..ecc7351 100644
--- a/user_guide/installation/upgrade_172.html
+++ b/user_guide/installation/upgrade_172.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/installation/upgrade_200.html b/user_guide/installation/upgrade_200.html
index c4a5887..6baea73 100644
--- a/user_guide/installation/upgrade_200.html
+++ b/user_guide/installation/upgrade_200.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/installation/upgrade_201.html b/user_guide/installation/upgrade_201.html
new file mode 100644
index 0000000..879067c
--- /dev/null
+++ b/user_guide/installation/upgrade_201.html
@@ -0,0 +1,103 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
+<head>
+
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+<title>Upgrading from 2.0.0 to 2.0.1 : CodeIgniter User Guide</title>
+
+<style type='text/css' media='all'>@import url('../userguide.css');</style>
+<link rel='stylesheet' type='text/css' media='all' href='../userguide.css' />
+
+<script type="text/javascript" src="../nav/nav.js"></script>
+<script type="text/javascript" src="../nav/prototype.lite.js"></script>
+<script type="text/javascript" src="../nav/moo.fx.js"></script>
+<script type="text/javascript" src="../nav/user_guide_menu.js"></script>
+
+<meta http-equiv='expires' content='-1' />
+<meta http-equiv= 'pragma' content='no-cache' />
+<meta name='robots' content='all' />
+<meta name='author' content='ExpressionEngine Dev Team' />
+<meta name='description' content='CodeIgniter User Guide' />
+
+</head>
+<body>
+
+<!-- START NAVIGATION -->
+<div id="nav"><div id="nav_inner"><script type="text/javascript">create_menu('../');</script></div></div>
+<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle_darker.jpg" width="154" height="43" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div>
+<div id="masthead">
+<table cellpadding="0" cellspacing="0" border="0" style="width:100%">
+<tr>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
+<td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
+</tr>
+</table>
+</div>
+<!-- END NAVIGATION -->
+
+
+<!-- START BREADCRUMB -->
+<table cellpadding="0" cellspacing="0" border="0" style="width:100%">
+<tr>
+<td id="breadcrumb">
+<a href="http://codeigniter.com/">CodeIgniter Home</a> &nbsp;&#8250;&nbsp;
+<a href="../index.html">User Guide Home</a> &nbsp;&#8250;&nbsp;
+Upgrading from 2.0.0 to 2.0.1
+</td>
+<td id="searchbox"><form method="get" action="http://www.google.com/search"><input type="hidden" name="as_sitesearch" id="as_sitesearch" value="codeigniter.com/user_guide/" />Search User Guide&nbsp; <input type="text" class="input" style="width:200px;" name="q" id="q" size="31" maxlength="255" value="" />&nbsp;<input type="submit" class="submit" name="sa" value="Go" /></form></td>
+</tr>
+</table>
+<!-- END BREADCRUMB -->
+
+<br clear="all" />
+
+
+<!-- START CONTENT -->
+<div id="content">
+
+<h1>Upgrading from 2.0.0 to 2.0.1</h1>
+
+<p>Before performing an update you should take your site offline by replacing the index.php file with a static one.</p>
+
+
+<h2>Step 1: Update your CodeIgniter files</h2>
+
+<p>Replace all files and directories in your "system" folder and replace your index.php file. If any modifications were made to your index.php they will need to be made fresh in this new one.</p>
+
+<p class="important"><strong>Note:</strong> If you have any custom developed files in these folders please make copies of them first.</p>
+
+<h2>Step 2: Replace config/mimes.php</h2>
+
+<p>This config file has been updated to contain more mime types, please copy it to <kbd>application/config/mimes.php</kbd>.</p>
+
+<h2>Step 3: Check for forms posting to default controller</h2>
+
+<p>
+	The default behavior for <kbd>form_open()</kbd> when called with no parameters used to be to post to the default controller, but it will now just leave an empty action="" meaning the form will submit to the current URL.
+	If submitting to the default controller was the expected behavior it will need to be changed from:
+</p>
+
+<code>echo form_open(); //&lt;form action="" method="post" accept-charset="utf-8"></code>
+
+<p>to use either a / or <kbd>base_url()</kbd>:</p>
+
+<code>echo form_open('/'); //&lt;form action="http://example.com/index.php/" method="post" accept-charset="utf-8"><br/>
+echo form_open(base_url()); //&lt;form action="http://example.com/" method="post" accept-charset="utf-8"></code>
+
+</div>
+<!-- END CONTENT -->
+
+
+<div id="footer">
+<p>
+Previous Topic:&nbsp;&nbsp;<a href="index.html">Installation Instructions</a>
+&nbsp;&nbsp;&nbsp;&middot;&nbsp;&nbsp;
+<a href="#top">Top of Page</a>&nbsp;&nbsp;&nbsp;&middot;&nbsp;&nbsp;
+<a href="../index.html">User Guide Home</a>&nbsp;&nbsp;&nbsp;&middot;&nbsp;&nbsp;
+Next Topic:&nbsp;&nbsp;<a href="troubleshooting.html">Troubleshooting</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>
+</div>
+
+</body>
+</html>
\ No newline at end of file
diff --git a/user_guide/installation/upgrade_b11.html b/user_guide/installation/upgrade_b11.html
index dd0a9bc..b3f70c6 100644
--- a/user_guide/installation/upgrade_b11.html
+++ b/user_guide/installation/upgrade_b11.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/installation/upgrading.html b/user_guide/installation/upgrading.html
index 9f95783..f72ef02 100644
--- a/user_guide/installation/upgrading.html
+++ b/user_guide/installation/upgrading.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
@@ -60,26 +60,27 @@
 <p>Please read the upgrade notes corresponding to the version you are upgrading from.</p>
 
 <ul>
-<li><a href="upgrade_200.html">Upgrading from 1.7.2 to 2.0</a></li>
-<li><a href="upgrade_172.html">Upgrading from 1.7.1 to 1.7.2</a></li>
-<li><a href="upgrade_171.html">Upgrading from 1.7.0 to 1.7.1</a></li>
-<li><a href="upgrade_170.html">Upgrading from 1.6.3 to 1.7.0</a></li>
-<li><a href="upgrade_163.html">Upgrading from 1.6.2 to 1.6.3</a></li>
-<li><a href="upgrade_162.html">Upgrading from 1.6.1 to 1.6.2</a></li>
-<li><a href="upgrade_161.html">Upgrading from 1.6.0 to 1.6.1</a></li>
-<li><a href="upgrade_160.html">Upgrading from 1.5.4 to 1.6.0</a></li>
-<li><a href="upgrade_154.html">Upgrading from 1.5.3 to 1.5.4</a></li>
-<li><a href="upgrade_153.html">Upgrading from 1.5.2 to 1.5.3</a></li>
-<li><a href="upgrade_152.html">Upgrading from 1.5.0 or 1.5.1 to 1.5.2</a></li>
-<li><a href="upgrade_150.html">Upgrading from 1.4.1 to 1.5.0</a></li>
-<li><a href="upgrade_141.html">Upgrading from 1.4.0 to 1.4.1</a></li>
-<li><a href="upgrade_140.html">Upgrading from 1.3.3 to 1.4.0</a></li>
-<li><a href="upgrade_133.html">Upgrading from 1.3.2 to 1.3.3</a></li>
-<li><a href="upgrade_132.html">Upgrading from 1.3.1 to 1.3.2</a></li>
-<li><a href="upgrade_131.html">Upgrading from 1.3 to 1.3.1</a></li>
-<li><a href="upgrade_130.html">Upgrading from 1.2 to 1.3</a></li>
-<li><a href="upgrade_120.html">Upgrading from 1.1 to 1.2</a></li>
-<li><a href="upgrade_b11.html">Upgrading from Beta 1.0 to Beta 1.1</a></li>
+	<li><a href="upgrade_201.html">Upgrading from 2.0 to 2.0.1</a></li>
+	<li><a href="upgrade_200.html">Upgrading from 1.7.2 to 2.0</a></li>
+	<li><a href="upgrade_172.html">Upgrading from 1.7.1 to 1.7.2</a></li>
+	<li><a href="upgrade_171.html">Upgrading from 1.7.0 to 1.7.1</a></li>
+	<li><a href="upgrade_170.html">Upgrading from 1.6.3 to 1.7.0</a></li>
+	<li><a href="upgrade_163.html">Upgrading from 1.6.2 to 1.6.3</a></li>
+	<li><a href="upgrade_162.html">Upgrading from 1.6.1 to 1.6.2</a></li>
+	<li><a href="upgrade_161.html">Upgrading from 1.6.0 to 1.6.1</a></li>
+	<li><a href="upgrade_160.html">Upgrading from 1.5.4 to 1.6.0</a></li>
+	<li><a href="upgrade_154.html">Upgrading from 1.5.3 to 1.5.4</a></li>
+	<li><a href="upgrade_153.html">Upgrading from 1.5.2 to 1.5.3</a></li>
+	<li><a href="upgrade_152.html">Upgrading from 1.5.0 or 1.5.1 to 1.5.2</a></li>
+	<li><a href="upgrade_150.html">Upgrading from 1.4.1 to 1.5.0</a></li>
+	<li><a href="upgrade_141.html">Upgrading from 1.4.0 to 1.4.1</a></li>
+	<li><a href="upgrade_140.html">Upgrading from 1.3.3 to 1.4.0</a></li>
+	<li><a href="upgrade_133.html">Upgrading from 1.3.2 to 1.3.3</a></li>
+	<li><a href="upgrade_132.html">Upgrading from 1.3.1 to 1.3.2</a></li>
+	<li><a href="upgrade_131.html">Upgrading from 1.3 to 1.3.1</a></li>
+	<li><a href="upgrade_130.html">Upgrading from 1.2 to 1.3</a></li>
+	<li><a href="upgrade_120.html">Upgrading from 1.1 to 1.2</a></li>
+	<li><a href="upgrade_b11.html">Upgrading from Beta 1.0 to Beta 1.1</a></li>
 </ul>
 
 
diff --git a/user_guide/libraries/benchmark.html b/user_guide/libraries/benchmark.html
index e8182d0..3213a67 100644
--- a/user_guide/libraries/benchmark.html
+++ b/user_guide/libraries/benchmark.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/libraries/caching.html b/user_guide/libraries/caching.html
index 3d33544..e04cf10 100644
--- a/user_guide/libraries/caching.html
+++ b/user_guide/libraries/caching.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/libraries/calendar.html b/user_guide/libraries/calendar.html
index 347b3d9..1222235 100644
--- a/user_guide/libraries/calendar.html
+++ b/user_guide/libraries/calendar.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/libraries/cart.html b/user_guide/libraries/cart.html
index fe87a23..c8d69d7 100644
--- a/user_guide/libraries/cart.html
+++ b/user_guide/libraries/cart.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/libraries/config.html b/user_guide/libraries/config.html
index 98b6052..71c6833 100644
--- a/user_guide/libraries/config.html
+++ b/user_guide/libraries/config.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
@@ -150,23 +150,42 @@
 
 <p>Where <var>item_name</var> is the $config array index you want to change, and <var>item_value</var> is its value.</p>
 
+<a name="environments"></a>
 <h2>Environments</h2>
 
-<p>You can set the environment of you application and load config items depending on the current environment. It also disables PHP from displaying errors in environments other than development. To set your environment, open <strong>index.php</strong>, located at the root and change the <var>ENVIRONMENT</var> constant. By default, there is support for a development, test and production environment.</p>
-	
-<code>
-define('<var>ENVIRONMENT</var>', '<var>development</var>');	
-</code>
+<p>
+    You may load different configuration files depending on the current environment.
+    The <kbd>ENVIRONMENT</kbd> constant is defined in index.php, and is described
+    in detail in the <a href="../general/environments.html">Handling Environments</a>
+    section.
+</p>
 
-<p>To make a config file environment-aware, copy the file from <samp>application/config/</samp> to <samp>application/config/development/</samp>, depending on the environment the config file belongs to. You can place the following configuration files in environment folders:</p>
+<p>
+    To create an environment-specific configuration file,
+    create or copy a configuration file in application/config/{ENVIRONMENT}/{FILENAME}.php
+</p>
+
+<p>For example, to create a production-only config.php, you would:</p>
+
+<ol>
+    <li>Create the directory application/config/production/</li>
+    <li>Copy your existing config.php into the above directory</li>
+    <li>Edit application/config/production/config.php so it contains your production settings</li>
+</ol>
+
+<p>
+    When you set the <kbd>ENVIRONMENT</kbd> constant to 'production', the settings
+    for your new production-only config.php will be loaded.
+</p>
+
+<p>You can place the following configuration files in environment-specific folders:</p>
 	
 <ul>
-<li>Default config files</li>
-<li>Database config files</li>
-<li>Custom config files</li>
+<li>Default CodeIgniter configuration files</li>
+<li>Your own custom configuration files</li>
 </ul>
 
-<p><strong>Note:</strong> CodeIgniter always tries to load the config file for the current environment first. If the file does not exist, the global config file (i.e. <samp>application/config/</samp>) is loaded. This means you are not obligated to place <strong>all</strong> your config files (but rather the files that change per environment) in an environment folder.</p>
+<p><strong>Note:</strong> CodeIgniter always tries to load the configuration files for the current environment first. If the file does not exist, the global config file (i.e., the one in <samp>application/config/</samp>) is loaded. This means you are not obligated to place <strong>all</strong> of your configuration files in an environment folder &minus; only the files that change per environment.</p>
 
 <h2>Helper Functions</h2>
 
@@ -195,4 +214,4 @@
 </div>
 
 </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/user_guide/libraries/email.html b/user_guide/libraries/email.html
index a02d658..357c01f 100644
--- a/user_guide/libraries/email.html
+++ b/user_guide/libraries/email.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/libraries/encryption.html b/user_guide/libraries/encryption.html
index f6fb2b8..b06adef 100644
--- a/user_guide/libraries/encryption.html
+++ b/user_guide/libraries/encryption.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/libraries/file_uploading.html b/user_guide/libraries/file_uploading.html
index 5c31628..5e5117a 100644
--- a/user_guide/libraries/file_uploading.html
+++ b/user_guide/libraries/file_uploading.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/libraries/form_validation.html b/user_guide/libraries/form_validation.html
index d612005..c72cfce 100644
--- a/user_guide/libraries/form_validation.html
+++ b/user_guide/libraries/form_validation.html
@@ -27,7 +27,7 @@
 <div id="masthead">
 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">
 <tr>
-<td><h1>CodeIgniter User Guide Version 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/libraries/ftp.html b/user_guide/libraries/ftp.html
index e3c0674..1c1ad73 100644
--- a/user_guide/libraries/ftp.html
+++ b/user_guide/libraries/ftp.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/libraries/image_lib.html b/user_guide/libraries/image_lib.html
index 0f023cf..81ae09c 100644
--- a/user_guide/libraries/image_lib.html
+++ b/user_guide/libraries/image_lib.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/libraries/input.html b/user_guide/libraries/input.html
index 0615fe6..479e71b 100644
--- a/user_guide/libraries/input.html
+++ b/user_guide/libraries/input.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
@@ -253,7 +253,7 @@
 <h2>$this->input->user_agent()</h2>
 <p>Returns the user agent (web browser) being used by the current user. Returns FALSE if it's not available.</p>
 <code>echo $this->input->user_agent();</code>
-
+<p>See the <a href="user_agent.html">User Agent Class</a> for methods which extract information from the user agent string.</p>
 
 <h2>$this->input->request_headers()</h2>
 <p>Useful if running in a non-Apache environment where <a href="http://php.net/apache_request_headers">apache_request_headers()</a> will not be supported.  Returns an array of headers.</p>
diff --git a/user_guide/libraries/javascript.html b/user_guide/libraries/javascript.html
index 4cd751f..faa8417 100644
--- a/user_guide/libraries/javascript.html
+++ b/user_guide/libraries/javascript.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/libraries/language.html b/user_guide/libraries/language.html
index dfdccad..fcc2826 100644
--- a/user_guide/libraries/language.html
+++ b/user_guide/libraries/language.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/libraries/loader.html b/user_guide/libraries/loader.html
index af312f4..7da087a 100644
--- a/user_guide/libraries/loader.html
+++ b/user_guide/libraries/loader.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/libraries/output.html b/user_guide/libraries/output.html
index ab8f1d6..3e18fa0 100644
--- a/user_guide/libraries/output.html
+++ b/user_guide/libraries/output.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
@@ -78,6 +78,21 @@
 For example, if you build a page in one of your controller functions, don't set the output until the end.</p>
 
 
+<h2>$this->output->set_content_type();</h2>
+
+<p>Permits you to set the mime-type of your page so you can serve JSON data, JPEG's, XML, etc easily.</p>
+
+<code>$this->output<br/>
+&nbsp;&nbsp;&nbsp;&nbsp;->set_content_type('application/json')<br/>
+&nbsp;&nbsp;&nbsp;&nbsp;->set_output(json_encode(array('foo' => 'bar')));<br/>
+<br/>
+$this->output<br/>
+&nbsp;&nbsp;&nbsp;&nbsp;->set_content_type('jpeg') // You could also use ".jpeg" which will have the full stop removed before looking in config/mimes.php<br/>
+&nbsp;&nbsp;&nbsp;&nbsp;->set_output(file_get_contents('files/something.jpg'));</code>
+
+<p><strong>Important:</strong> Make sure any non-mime string you pass to this method exists in config/mimes.php or it will have no effect.</p>
+
+
 <h2>$this->output->get_output();</h2>
 
 <p>Permits you to manually retrieve any output that has been sent for storage in the output class.  Usage example:</p>
diff --git a/user_guide/libraries/pagination.html b/user_guide/libraries/pagination.html
index da07c79..3db020a 100644
--- a/user_guide/libraries/pagination.html
+++ b/user_guide/libraries/pagination.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/libraries/parser.html b/user_guide/libraries/parser.html
index 5bb403a..1089f40 100644
--- a/user_guide/libraries/parser.html
+++ b/user_guide/libraries/parser.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/libraries/security.html b/user_guide/libraries/security.html
index 943f72a..6fbdf77 100644
--- a/user_guide/libraries/security.html
+++ b/user_guide/libraries/security.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/libraries/sessions.html b/user_guide/libraries/sessions.html
index c875799..5243a83 100644
--- a/user_guide/libraries/sessions.html
+++ b/user_guide/libraries/sessions.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/libraries/table.html b/user_guide/libraries/table.html
index 9de7077..28994aa 100644
--- a/user_guide/libraries/table.html
+++ b/user_guide/libraries/table.html
@@ -27,7 +27,7 @@
 <div id="masthead">
 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">
 <tr>
-<td><h1>CodeIgniter User Guide Version 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/libraries/trackback.html b/user_guide/libraries/trackback.html
index 32b1ee2..971b8f3 100644
--- a/user_guide/libraries/trackback.html
+++ b/user_guide/libraries/trackback.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/libraries/typography.html b/user_guide/libraries/typography.html
index 9c4272b..14725cd 100644
--- a/user_guide/libraries/typography.html
+++ b/user_guide/libraries/typography.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/libraries/unit_testing.html b/user_guide/libraries/unit_testing.html
index 49c5881..e68bc3f 100644
--- a/user_guide/libraries/unit_testing.html
+++ b/user_guide/libraries/unit_testing.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/libraries/uri.html b/user_guide/libraries/uri.html
index 0dbaffa..7b5887f 100644
--- a/user_guide/libraries/uri.html
+++ b/user_guide/libraries/uri.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/libraries/user_agent.html b/user_guide/libraries/user_agent.html
index 8989fb2..2d303db 100644
--- a/user_guide/libraries/user_agent.html
+++ b/user_guide/libraries/user_agent.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/libraries/xmlrpc.html b/user_guide/libraries/xmlrpc.html
index 7a8934d..53931ae 100644
--- a/user_guide/libraries/xmlrpc.html
+++ b/user_guide/libraries/xmlrpc.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/libraries/zip.html b/user_guide/libraries/zip.html
index 48e2562..6cb0d19 100644
--- a/user_guide/libraries/zip.html
+++ b/user_guide/libraries/zip.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/license.html b/user_guide/license.html
index bb01a7e..645358a 100644
--- a/user_guide/license.html
+++ b/user_guide/license.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 2.0.0</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.1</h1></td>
 <td id="breadcrumb_right"><a href="toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
diff --git a/user_guide/nav/nav.js b/user_guide/nav/nav.js
index 8f16e27..eaa5f62 100644
--- a/user_guide/nav/nav.js
+++ b/user_guide/nav/nav.js
@@ -59,6 +59,7 @@
 			'<li><a href="'+base+'general/caching.html">Caching</a></li>' +
 			'<li><a href="'+base+'general/profiling.html">Profiling Your Application</a></li>' +
 			'<li><a href="'+base+'general/managing_apps.html">Managing Applications</a></li>' +
+			'<li><a href="'+base+'general/environments.html">Handling Multiple Environments</a></li>' +
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 			'<li><a href="'+base+'general/security.html">Security</a></li>' +
 			'<li><a href="'+base+'general/styleguide.html">PHP Style Guide</a></li>' +
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index c5af8bc..09c13f9 100644
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