Bumped CodeIgniter's PHP requirement to 5.2.4.
Yes I know PHP 5.4 just came out, and yes I know PHP 5.3 has lovely features, but there are plenty of corporate systems running on CodeIgniter and PHP 5.3 still is not widely supported enough. CodeIgniter is great for distributed applications, and this is the highest we can reasonably go without breaking support. PHP 5.3 will most likely happen in another year or so. Fingers crossed on that one anyway...
diff --git a/application/config/autoload.php b/application/config/autoload.php
index db49ca1..e8c9993 100644
--- a/application/config/autoload.php
+++ b/application/config/autoload.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/application/config/config.php b/application/config/config.php
index 17b854b..4ad9d1d 100644
--- a/application/config/config.php
+++ b/application/config/config.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/application/config/constants.php b/application/config/constants.php
index c7203e4..fce1013 100644
--- a/application/config/constants.php
+++ b/application/config/constants.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/application/config/database.php b/application/config/database.php
index bd68db1..154638d 100644
--- a/application/config/database.php
+++ b/application/config/database.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/application/config/doctypes.php b/application/config/doctypes.php
index 984da59..e5e70da 100644
--- a/application/config/doctypes.php
+++ b/application/config/doctypes.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/application/config/foreign_chars.php b/application/config/foreign_chars.php
index 1ae0cef..d3713fe 100644
--- a/application/config/foreign_chars.php
+++ b/application/config/foreign_chars.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/application/config/hooks.php b/application/config/hooks.php
index 80269df..1b10fc2 100644
--- a/application/config/hooks.php
+++ b/application/config/hooks.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/application/config/memcached.php b/application/config/memcached.php
index 2b1a772..7166b70 100644
--- a/application/config/memcached.php
+++ b/application/config/memcached.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/application/config/migration.php b/application/config/migration.php
index 668c357..e1ce1ae 100644
--- a/application/config/migration.php
+++ b/application/config/migration.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/application/config/mimes.php b/application/config/mimes.php
index d69497a..7ec782b 100644
--- a/application/config/mimes.php
+++ b/application/config/mimes.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/application/config/profiler.php b/application/config/profiler.php
index f956142..5339189 100644
--- a/application/config/profiler.php
+++ b/application/config/profiler.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/application/config/routes.php b/application/config/routes.php
index 53fc7e7..686573d 100644
--- a/application/config/routes.php
+++ b/application/config/routes.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/application/config/smileys.php b/application/config/smileys.php
index 4132aed..8e3844a 100644
--- a/application/config/smileys.php
+++ b/application/config/smileys.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/application/config/user_agents.php b/application/config/user_agents.php
index e7a6894..0baa252 100644
--- a/application/config/user_agents.php
+++ b/application/config/user_agents.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/application/controllers/welcome.php b/application/controllers/welcome.php
index 5eb0e96..2451d97 100644
--- a/application/controllers/welcome.php
+++ b/application/controllers/welcome.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/application/errors/error_404.php b/application/errors/error_404.php
index 4dd8fc4..9af9e39 100644
--- a/application/errors/error_404.php
+++ b/application/errors/error_404.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/application/errors/error_db.php b/application/errors/error_db.php
index 130ffc1..81ff02a 100644
--- a/application/errors/error_db.php
+++ b/application/errors/error_db.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/application/errors/error_general.php b/application/errors/error_general.php
index 2a844a8..8efcfd9 100644
--- a/application/errors/error_general.php
+++ b/application/errors/error_general.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/application/errors/error_php.php b/application/errors/error_php.php
index 8e293cd..42e5f5a 100644
--- a/application/errors/error_php.php
+++ b/application/errors/error_php.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/application/views/welcome_message.php b/application/views/welcome_message.php
index acc36b6..0dd8924 100644
--- a/application/views/welcome_message.php
+++ b/application/views/welcome_message.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/index.php b/index.php
index a378266..5a11901 100644
--- a/index.php
+++ b/index.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/readme.rst b/readme.rst
index 2369a8d..4707847 100644
--- a/readme.rst
+++ b/readme.rst
@@ -29,7 +29,7 @@
 Server Requirements
 *******************
 
--  PHP version 5.1.6 or newer.
+-  PHP version 5.2.4 or newer.
 
 ************
 Installation
@@ -90,9 +90,9 @@
 Compatibility
 =============
 
-CodeIgniter is compatible with PHP 5.1.6 so all code supplied must stick to
-this requirement. If PHP 5.2 or 5.3 functions or features are used then there
-must be a fallback for PHP 5.1.6.
+CodeIgniter is compatible with PHP 5.2.4 so all code supplied must stick to
+this requirement. If PHP 5.3 or 5.4 functions or features are used then there
+must be a fallback for PHP 5.2.4.
 
 Branching
 =========
diff --git a/system/core/Benchmark.php b/system/core/Benchmark.php
index f4dfd3d..f6b634d 100755
--- a/system/core/Benchmark.php
+++ b/system/core/Benchmark.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/core/CodeIgniter.php b/system/core/CodeIgniter.php
index 7af3c48..a79a695 100755
--- a/system/core/CodeIgniter.php
+++ b/system/core/CodeIgniter.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/core/Common.php b/system/core/Common.php
index 4919793..f20acaf 100644
--- a/system/core/Common.php
+++ b/system/core/Common.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/core/Config.php b/system/core/Config.php
index 6841743..1e149d0 100755
--- a/system/core/Config.php
+++ b/system/core/Config.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/core/Controller.php b/system/core/Controller.php
index 0dc1317..05e1bf5 100644
--- a/system/core/Controller.php
+++ b/system/core/Controller.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/core/Exceptions.php b/system/core/Exceptions.php
index bf99012..d7282b1 100755
--- a/system/core/Exceptions.php
+++ b/system/core/Exceptions.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/core/Hooks.php b/system/core/Hooks.php
index e1ac58e..493822f 100755
--- a/system/core/Hooks.php
+++ b/system/core/Hooks.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/core/Input.php b/system/core/Input.php
index ee15f40..9a05034 100755
--- a/system/core/Input.php
+++ b/system/core/Input.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/core/Lang.php b/system/core/Lang.php
index c40a685..9ef76f4 100755
--- a/system/core/Lang.php
+++ b/system/core/Lang.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/core/Loader.php b/system/core/Loader.php
index 12daaa9..971d303 100644
--- a/system/core/Loader.php
+++ b/system/core/Loader.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/core/Model.php b/system/core/Model.php
index a595a6a..49b8d34 100755
--- a/system/core/Model.php
+++ b/system/core/Model.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/core/Output.php b/system/core/Output.php
index abd8a0e..faebbbe 100755
--- a/system/core/Output.php
+++ b/system/core/Output.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/core/Router.php b/system/core/Router.php
index d213195..b251abb 100755
--- a/system/core/Router.php
+++ b/system/core/Router.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/core/Security.php b/system/core/Security.php
index 6f25fb5..bf73bd1 100755
--- a/system/core/Security.php
+++ b/system/core/Security.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/core/URI.php b/system/core/URI.php
index b28ee19..db5b8e4 100755
--- a/system/core/URI.php
+++ b/system/core/URI.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/core/Utf8.php b/system/core/Utf8.php
index 0e180d3..ba35674 100644
--- a/system/core/Utf8.php
+++ b/system/core/Utf8.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/database/DB.php b/system/database/DB.php
index d06ffb4..116116b 100755
--- a/system/database/DB.php
+++ b/system/database/DB.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/database/DB_active_rec.php b/system/database/DB_active_rec.php
index f648e55..c7df819 100644
--- a/system/database/DB_active_rec.php
+++ b/system/database/DB_active_rec.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/database/DB_cache.php b/system/database/DB_cache.php
index 79651fc..fb0cfa8 100644
--- a/system/database/DB_cache.php
+++ b/system/database/DB_cache.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/database/DB_driver.php b/system/database/DB_driver.php
index a61450d..59018cc 100644
--- a/system/database/DB_driver.php
+++ b/system/database/DB_driver.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/database/DB_forge.php b/system/database/DB_forge.php
index 336e949..fe2a677 100644
--- a/system/database/DB_forge.php
+++ b/system/database/DB_forge.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/database/DB_result.php b/system/database/DB_result.php
index 61aa561..c3cdd24 100644
--- a/system/database/DB_result.php
+++ b/system/database/DB_result.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/database/DB_utility.php b/system/database/DB_utility.php
index 4c881d8..c94f93e 100644
--- a/system/database/DB_utility.php
+++ b/system/database/DB_utility.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/database/drivers/cubrid/cubrid_driver.php b/system/database/drivers/cubrid/cubrid_driver.php
index afdaef3..1c65cbd 100644
--- a/system/database/drivers/cubrid/cubrid_driver.php
+++ b/system/database/drivers/cubrid/cubrid_driver.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/database/drivers/cubrid/cubrid_forge.php b/system/database/drivers/cubrid/cubrid_forge.php
index 85e7400..293613e 100644
--- a/system/database/drivers/cubrid/cubrid_forge.php
+++ b/system/database/drivers/cubrid/cubrid_forge.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/database/drivers/cubrid/cubrid_result.php b/system/database/drivers/cubrid/cubrid_result.php
index 4c0fede..a7eeb8a 100644
--- a/system/database/drivers/cubrid/cubrid_result.php
+++ b/system/database/drivers/cubrid/cubrid_result.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/database/drivers/cubrid/cubrid_utility.php b/system/database/drivers/cubrid/cubrid_utility.php
index 750c0d8..a13c0a5 100644
--- a/system/database/drivers/cubrid/cubrid_utility.php
+++ b/system/database/drivers/cubrid/cubrid_utility.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/database/drivers/interbase/interbase_driver.php b/system/database/drivers/interbase/interbase_driver.php
index f4bd9e2..3e2ca49 100644
--- a/system/database/drivers/interbase/interbase_driver.php
+++ b/system/database/drivers/interbase/interbase_driver.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/database/drivers/interbase/interbase_forge.php b/system/database/drivers/interbase/interbase_forge.php
index 023d278..f460435 100644
--- a/system/database/drivers/interbase/interbase_forge.php
+++ b/system/database/drivers/interbase/interbase_forge.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/database/drivers/interbase/interbase_result.php b/system/database/drivers/interbase/interbase_result.php
index 4b15eee..5bf0c90 100644
--- a/system/database/drivers/interbase/interbase_result.php
+++ b/system/database/drivers/interbase/interbase_result.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/database/drivers/interbase/interbase_utility.php b/system/database/drivers/interbase/interbase_utility.php
index 76a0497..a88055e 100644
--- a/system/database/drivers/interbase/interbase_utility.php
+++ b/system/database/drivers/interbase/interbase_utility.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/database/drivers/mssql/mssql_driver.php b/system/database/drivers/mssql/mssql_driver.php
index 147c634..534e8d9 100644
--- a/system/database/drivers/mssql/mssql_driver.php
+++ b/system/database/drivers/mssql/mssql_driver.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/database/drivers/mssql/mssql_forge.php b/system/database/drivers/mssql/mssql_forge.php
index dd8aa34..50db595 100644
--- a/system/database/drivers/mssql/mssql_forge.php
+++ b/system/database/drivers/mssql/mssql_forge.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/database/drivers/mssql/mssql_result.php b/system/database/drivers/mssql/mssql_result.php
index bba2e62..b205ce2 100644
--- a/system/database/drivers/mssql/mssql_result.php
+++ b/system/database/drivers/mssql/mssql_result.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/database/drivers/mssql/mssql_utility.php b/system/database/drivers/mssql/mssql_utility.php
index be6ed5b..28f34b9 100644
--- a/system/database/drivers/mssql/mssql_utility.php
+++ b/system/database/drivers/mssql/mssql_utility.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/database/drivers/mysql/mysql_driver.php b/system/database/drivers/mysql/mysql_driver.php
index 7fd08a6..76fb057 100644
--- a/system/database/drivers/mysql/mysql_driver.php
+++ b/system/database/drivers/mysql/mysql_driver.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/database/drivers/mysql/mysql_forge.php b/system/database/drivers/mysql/mysql_forge.php
index 0f251b0..3cd96a8 100644
--- a/system/database/drivers/mysql/mysql_forge.php
+++ b/system/database/drivers/mysql/mysql_forge.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/database/drivers/mysql/mysql_result.php b/system/database/drivers/mysql/mysql_result.php
index 5a65d9c..cec28dc 100644
--- a/system/database/drivers/mysql/mysql_result.php
+++ b/system/database/drivers/mysql/mysql_result.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/database/drivers/mysql/mysql_utility.php b/system/database/drivers/mysql/mysql_utility.php
index 952f887..d716b00 100644
--- a/system/database/drivers/mysql/mysql_utility.php
+++ b/system/database/drivers/mysql/mysql_utility.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/database/drivers/mysqli/mysqli_driver.php b/system/database/drivers/mysqli/mysqli_driver.php
index 25b6cec..e0b2065 100644
--- a/system/database/drivers/mysqli/mysqli_driver.php
+++ b/system/database/drivers/mysqli/mysqli_driver.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/database/drivers/mysqli/mysqli_forge.php b/system/database/drivers/mysqli/mysqli_forge.php
index 7de0361..deb8c0d 100644
--- a/system/database/drivers/mysqli/mysqli_forge.php
+++ b/system/database/drivers/mysqli/mysqli_forge.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/database/drivers/mysqli/mysqli_result.php b/system/database/drivers/mysqli/mysqli_result.php
index 8b909cc..f135f4d 100644
--- a/system/database/drivers/mysqli/mysqli_result.php
+++ b/system/database/drivers/mysqli/mysqli_result.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/database/drivers/mysqli/mysqli_utility.php b/system/database/drivers/mysqli/mysqli_utility.php
index 3fdc5c7..650ddfd 100644
--- a/system/database/drivers/mysqli/mysqli_utility.php
+++ b/system/database/drivers/mysqli/mysqli_utility.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/database/drivers/oci8/oci8_driver.php b/system/database/drivers/oci8/oci8_driver.php
index 35cafff..048149f 100644
--- a/system/database/drivers/oci8/oci8_driver.php
+++ b/system/database/drivers/oci8/oci8_driver.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/database/drivers/oci8/oci8_forge.php b/system/database/drivers/oci8/oci8_forge.php
index 0aa1199..e9c30e1 100644
--- a/system/database/drivers/oci8/oci8_forge.php
+++ b/system/database/drivers/oci8/oci8_forge.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/database/drivers/oci8/oci8_result.php b/system/database/drivers/oci8/oci8_result.php
index 383b9f1..6f1b8b4 100644
--- a/system/database/drivers/oci8/oci8_result.php
+++ b/system/database/drivers/oci8/oci8_result.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/database/drivers/oci8/oci8_utility.php b/system/database/drivers/oci8/oci8_utility.php
index d60f98b..62dfb2f 100644
--- a/system/database/drivers/oci8/oci8_utility.php
+++ b/system/database/drivers/oci8/oci8_utility.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/database/drivers/odbc/odbc_driver.php b/system/database/drivers/odbc/odbc_driver.php
index a6e08cf..84e9a98 100644
--- a/system/database/drivers/odbc/odbc_driver.php
+++ b/system/database/drivers/odbc/odbc_driver.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/database/drivers/odbc/odbc_forge.php b/system/database/drivers/odbc/odbc_forge.php
index e0ec687..d5c4251 100644
--- a/system/database/drivers/odbc/odbc_forge.php
+++ b/system/database/drivers/odbc/odbc_forge.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/database/drivers/odbc/odbc_result.php b/system/database/drivers/odbc/odbc_result.php
index de2c58c..d19fa24 100644
--- a/system/database/drivers/odbc/odbc_result.php
+++ b/system/database/drivers/odbc/odbc_result.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/database/drivers/odbc/odbc_utility.php b/system/database/drivers/odbc/odbc_utility.php
index bae3fe8..c146c17 100644
--- a/system/database/drivers/odbc/odbc_utility.php
+++ b/system/database/drivers/odbc/odbc_utility.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/database/drivers/pdo/pdo_driver.php b/system/database/drivers/pdo/pdo_driver.php
index 8fdfd58..c86d9df 100644
--- a/system/database/drivers/pdo/pdo_driver.php
+++ b/system/database/drivers/pdo/pdo_driver.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/database/drivers/pdo/pdo_forge.php b/system/database/drivers/pdo/pdo_forge.php
index 478b2db..7c23847 100644
--- a/system/database/drivers/pdo/pdo_forge.php
+++ b/system/database/drivers/pdo/pdo_forge.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/database/drivers/pdo/pdo_result.php b/system/database/drivers/pdo/pdo_result.php
index c333abc..309f194 100644
--- a/system/database/drivers/pdo/pdo_result.php
+++ b/system/database/drivers/pdo/pdo_result.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/database/drivers/pdo/pdo_utility.php b/system/database/drivers/pdo/pdo_utility.php
index 971ec88..c278c51 100644
--- a/system/database/drivers/pdo/pdo_utility.php
+++ b/system/database/drivers/pdo/pdo_utility.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/database/drivers/postgre/postgre_driver.php b/system/database/drivers/postgre/postgre_driver.php
index 5b248e9..b8abbd7 100644
--- a/system/database/drivers/postgre/postgre_driver.php
+++ b/system/database/drivers/postgre/postgre_driver.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/database/drivers/postgre/postgre_forge.php b/system/database/drivers/postgre/postgre_forge.php
index 756fd34..216b496 100644
--- a/system/database/drivers/postgre/postgre_forge.php
+++ b/system/database/drivers/postgre/postgre_forge.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/database/drivers/postgre/postgre_result.php b/system/database/drivers/postgre/postgre_result.php
index 9161bf9..12d7547 100644
--- a/system/database/drivers/postgre/postgre_result.php
+++ b/system/database/drivers/postgre/postgre_result.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/database/drivers/postgre/postgre_utility.php b/system/database/drivers/postgre/postgre_utility.php
index c426b36..e31a6db 100644
--- a/system/database/drivers/postgre/postgre_utility.php
+++ b/system/database/drivers/postgre/postgre_utility.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/database/drivers/sqlite/sqlite_driver.php b/system/database/drivers/sqlite/sqlite_driver.php
index 3eaec94..efb3727 100644
--- a/system/database/drivers/sqlite/sqlite_driver.php
+++ b/system/database/drivers/sqlite/sqlite_driver.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/database/drivers/sqlite/sqlite_forge.php b/system/database/drivers/sqlite/sqlite_forge.php
index fd0f3eb..3e9e5d4 100644
--- a/system/database/drivers/sqlite/sqlite_forge.php
+++ b/system/database/drivers/sqlite/sqlite_forge.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/database/drivers/sqlite/sqlite_result.php b/system/database/drivers/sqlite/sqlite_result.php
index 74c0dc5..ac2235c 100644
--- a/system/database/drivers/sqlite/sqlite_result.php
+++ b/system/database/drivers/sqlite/sqlite_result.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/database/drivers/sqlite/sqlite_utility.php b/system/database/drivers/sqlite/sqlite_utility.php
index 8fefcd9..9f9ddca 100644
--- a/system/database/drivers/sqlite/sqlite_utility.php
+++ b/system/database/drivers/sqlite/sqlite_utility.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/database/drivers/sqlsrv/sqlsrv_driver.php b/system/database/drivers/sqlsrv/sqlsrv_driver.php
index 5c90cb4..5e920cb 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_driver.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_driver.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/database/drivers/sqlsrv/sqlsrv_forge.php b/system/database/drivers/sqlsrv/sqlsrv_forge.php
index 2a77669..e00fc7d 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_forge.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_forge.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/database/drivers/sqlsrv/sqlsrv_result.php b/system/database/drivers/sqlsrv/sqlsrv_result.php
index 1ee19c2..52d338a 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_result.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_result.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/database/drivers/sqlsrv/sqlsrv_utility.php b/system/database/drivers/sqlsrv/sqlsrv_utility.php
index e96df96..44e6faf 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_utility.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_utility.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/helpers/array_helper.php b/system/helpers/array_helper.php
index c46c4d1..e5e32c4 100644
--- a/system/helpers/array_helper.php
+++ b/system/helpers/array_helper.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/helpers/captcha_helper.php b/system/helpers/captcha_helper.php
index 668b034..583c2f1 100644
--- a/system/helpers/captcha_helper.php
+++ b/system/helpers/captcha_helper.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/helpers/cookie_helper.php b/system/helpers/cookie_helper.php
index 7b439c4..b46f805 100644
--- a/system/helpers/cookie_helper.php
+++ b/system/helpers/cookie_helper.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/helpers/date_helper.php b/system/helpers/date_helper.php
index 9e58d86..2a34cf9 100644
--- a/system/helpers/date_helper.php
+++ b/system/helpers/date_helper.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/helpers/directory_helper.php b/system/helpers/directory_helper.php
index be65b38..1d67e05 100644
--- a/system/helpers/directory_helper.php
+++ b/system/helpers/directory_helper.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/helpers/download_helper.php b/system/helpers/download_helper.php
index a8c59c2..47d55db 100644
--- a/system/helpers/download_helper.php
+++ b/system/helpers/download_helper.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/helpers/email_helper.php b/system/helpers/email_helper.php
index f184031..b87bce6 100644
--- a/system/helpers/email_helper.php
+++ b/system/helpers/email_helper.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/helpers/file_helper.php b/system/helpers/file_helper.php
index 2d4b10e..3fd6b82 100644
--- a/system/helpers/file_helper.php
+++ b/system/helpers/file_helper.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/helpers/form_helper.php b/system/helpers/form_helper.php
index 6efef23..4da07f2 100644
--- a/system/helpers/form_helper.php
+++ b/system/helpers/form_helper.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/helpers/html_helper.php b/system/helpers/html_helper.php
index 72970d9..b8c4f36 100644
--- a/system/helpers/html_helper.php
+++ b/system/helpers/html_helper.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/helpers/inflector_helper.php b/system/helpers/inflector_helper.php
index 02c425b..2f6b40a 100644
--- a/system/helpers/inflector_helper.php
+++ b/system/helpers/inflector_helper.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/helpers/language_helper.php b/system/helpers/language_helper.php
index a83580a..1d66df5 100644
--- a/system/helpers/language_helper.php
+++ b/system/helpers/language_helper.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/helpers/number_helper.php b/system/helpers/number_helper.php
index 331b468..b6c823d 100644
--- a/system/helpers/number_helper.php
+++ b/system/helpers/number_helper.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/helpers/path_helper.php b/system/helpers/path_helper.php
index cd87a73..2eb85fe 100644
--- a/system/helpers/path_helper.php
+++ b/system/helpers/path_helper.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/helpers/security_helper.php b/system/helpers/security_helper.php
index 99fda56..e05e947 100644
--- a/system/helpers/security_helper.php
+++ b/system/helpers/security_helper.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/helpers/smiley_helper.php b/system/helpers/smiley_helper.php
index 700f448..cc903bc 100644
--- a/system/helpers/smiley_helper.php
+++ b/system/helpers/smiley_helper.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/helpers/string_helper.php b/system/helpers/string_helper.php
index 04d51c2..607a12b 100644
--- a/system/helpers/string_helper.php
+++ b/system/helpers/string_helper.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/helpers/text_helper.php b/system/helpers/text_helper.php
index 6e9ea57..7591bac 100644
--- a/system/helpers/text_helper.php
+++ b/system/helpers/text_helper.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/helpers/typography_helper.php b/system/helpers/typography_helper.php
index c49348e..9b19c7c 100644
--- a/system/helpers/typography_helper.php
+++ b/system/helpers/typography_helper.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/helpers/url_helper.php b/system/helpers/url_helper.php
index 3f0fef5..2ae1fd3 100644
--- a/system/helpers/url_helper.php
+++ b/system/helpers/url_helper.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/helpers/xml_helper.php b/system/helpers/xml_helper.php
index 5242193..f3ff576 100644
--- a/system/helpers/xml_helper.php
+++ b/system/helpers/xml_helper.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/language/english/calendar_lang.php b/system/language/english/calendar_lang.php
index bf61db0..2d477e6 100644
--- a/system/language/english/calendar_lang.php
+++ b/system/language/english/calendar_lang.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/language/english/date_lang.php b/system/language/english/date_lang.php
index cd6cf39..5335637 100644
--- a/system/language/english/date_lang.php
+++ b/system/language/english/date_lang.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/language/english/db_lang.php b/system/language/english/db_lang.php
index 2a91597..a135d1a 100644
--- a/system/language/english/db_lang.php
+++ b/system/language/english/db_lang.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/language/english/email_lang.php b/system/language/english/email_lang.php
index e0ef427..23296a2 100644
--- a/system/language/english/email_lang.php
+++ b/system/language/english/email_lang.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/language/english/form_validation_lang.php b/system/language/english/form_validation_lang.php
index ea58961..6cf0b46 100644
--- a/system/language/english/form_validation_lang.php
+++ b/system/language/english/form_validation_lang.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/language/english/ftp_lang.php b/system/language/english/ftp_lang.php
index 18ca927..4e39e43 100644
--- a/system/language/english/ftp_lang.php
+++ b/system/language/english/ftp_lang.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/language/english/imglib_lang.php b/system/language/english/imglib_lang.php
index fbb92ab..67ca942 100644
--- a/system/language/english/imglib_lang.php
+++ b/system/language/english/imglib_lang.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/language/english/migration_lang.php b/system/language/english/migration_lang.php
index 9765562..2085cee 100644
--- a/system/language/english/migration_lang.php
+++ b/system/language/english/migration_lang.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/language/english/number_lang.php b/system/language/english/number_lang.php
index 5dfd882..0c19ec6 100644
--- a/system/language/english/number_lang.php
+++ b/system/language/english/number_lang.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/language/english/profiler_lang.php b/system/language/english/profiler_lang.php
index 1d10efa..11d7912 100644
--- a/system/language/english/profiler_lang.php
+++ b/system/language/english/profiler_lang.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/language/english/unit_test_lang.php b/system/language/english/unit_test_lang.php
index ed98439..3a8e144 100644
--- a/system/language/english/unit_test_lang.php
+++ b/system/language/english/unit_test_lang.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/language/english/upload_lang.php b/system/language/english/upload_lang.php
index a9a2fe7..ec5de1e 100644
--- a/system/language/english/upload_lang.php
+++ b/system/language/english/upload_lang.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/libraries/Cache/Cache.php b/system/libraries/Cache/Cache.php
index 2e78a66..60998e3 100644
--- a/system/libraries/Cache/Cache.php
+++ b/system/libraries/Cache/Cache.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/Cache/drivers/Cache_apc.php b/system/libraries/Cache/drivers/Cache_apc.php
index a3dd469..c387a30 100644
--- a/system/libraries/Cache/drivers/Cache_apc.php
+++ b/system/libraries/Cache/drivers/Cache_apc.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/Cache/drivers/Cache_dummy.php b/system/libraries/Cache/drivers/Cache_dummy.php
index fcd55da..c9767e4 100644
--- a/system/libraries/Cache/drivers/Cache_dummy.php
+++ b/system/libraries/Cache/drivers/Cache_dummy.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/Cache/drivers/Cache_file.php b/system/libraries/Cache/drivers/Cache_file.php
index a960730..c0be0de 100644
--- a/system/libraries/Cache/drivers/Cache_file.php
+++ b/system/libraries/Cache/drivers/Cache_file.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/Cache/drivers/Cache_memcached.php b/system/libraries/Cache/drivers/Cache_memcached.php
index ffe6f2f..b8f2d7e 100644
--- a/system/libraries/Cache/drivers/Cache_memcached.php
+++ b/system/libraries/Cache/drivers/Cache_memcached.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/Calendar.php b/system/libraries/Calendar.php
index a05a7ba..6c04de8 100644
--- a/system/libraries/Calendar.php
+++ b/system/libraries/Calendar.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/Cart.php b/system/libraries/Cart.php
index 10b5362..60a1e52 100644
--- a/system/libraries/Cart.php
+++ b/system/libraries/Cart.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/Driver.php b/system/libraries/Driver.php
index 4e89443..9a073b3 100644
--- a/system/libraries/Driver.php
+++ b/system/libraries/Driver.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/Email.php b/system/libraries/Email.php
index 8d839d0..f30fe40 100644
--- a/system/libraries/Email.php
+++ b/system/libraries/Email.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/Encrypt.php b/system/libraries/Encrypt.php
index 0b06189..b29eb47 100644
--- a/system/libraries/Encrypt.php
+++ b/system/libraries/Encrypt.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/Form_validation.php b/system/libraries/Form_validation.php
index cdb3d3d..8153af7 100644
--- a/system/libraries/Form_validation.php
+++ b/system/libraries/Form_validation.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/Ftp.php b/system/libraries/Ftp.php
index ab395b0..4d96c00 100644
--- a/system/libraries/Ftp.php
+++ b/system/libraries/Ftp.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/Image_lib.php b/system/libraries/Image_lib.php
index 9826eab..86b77bf 100644
--- a/system/libraries/Image_lib.php
+++ b/system/libraries/Image_lib.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/Javascript.php b/system/libraries/Javascript.php
index 33df600..9ba9300 100644
--- a/system/libraries/Javascript.php
+++ b/system/libraries/Javascript.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/Log.php b/system/libraries/Log.php
index 944173f..955277a 100644
--- a/system/libraries/Log.php
+++ b/system/libraries/Log.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/Migration.php b/system/libraries/Migration.php
index d070972..c045ac0 100644
--- a/system/libraries/Migration.php
+++ b/system/libraries/Migration.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/Pagination.php b/system/libraries/Pagination.php
index 35ac541..86b8d79 100644
--- a/system/libraries/Pagination.php
+++ b/system/libraries/Pagination.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/Parser.php b/system/libraries/Parser.php
index 3212482..290e17f 100644
--- a/system/libraries/Parser.php
+++ b/system/libraries/Parser.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/Profiler.php b/system/libraries/Profiler.php
index 04216be..d84e5d3 100644
--- a/system/libraries/Profiler.php
+++ b/system/libraries/Profiler.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/Session.php b/system/libraries/Session.php
index 104b888..0b9d45b 100644
--- a/system/libraries/Session.php
+++ b/system/libraries/Session.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/Table.php b/system/libraries/Table.php
index fb154e5..8651b9e 100644
--- a/system/libraries/Table.php
+++ b/system/libraries/Table.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/Trackback.php b/system/libraries/Trackback.php
index 79a0091..3bea5f9 100644
--- a/system/libraries/Trackback.php
+++ b/system/libraries/Trackback.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/Typography.php b/system/libraries/Typography.php
index 46c73ef..65e30b0 100644
--- a/system/libraries/Typography.php
+++ b/system/libraries/Typography.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/Unit_test.php b/system/libraries/Unit_test.php
index 38d767c..2eb8df3 100644
--- a/system/libraries/Unit_test.php
+++ b/system/libraries/Unit_test.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/Upload.php b/system/libraries/Upload.php
index 89575c8..42664a5 100644
--- a/system/libraries/Upload.php
+++ b/system/libraries/Upload.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/User_agent.php b/system/libraries/User_agent.php
index cd644c0..9109edd 100644
--- a/system/libraries/User_agent.php
+++ b/system/libraries/User_agent.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/Xmlrpc.php b/system/libraries/Xmlrpc.php
index 730a0fc..32e2e52 100644
--- a/system/libraries/Xmlrpc.php
+++ b/system/libraries/Xmlrpc.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/Xmlrpcs.php b/system/libraries/Xmlrpcs.php
index 355d43f..fc41444 100644
--- a/system/libraries/Xmlrpcs.php
+++ b/system/libraries/Xmlrpcs.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/system/libraries/Zip.php b/system/libraries/Zip.php
index 50e8492..e33eb4e 100644
--- a/system/libraries/Zip.php
+++ b/system/libraries/Zip.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  * 
diff --git a/system/libraries/javascript/Jquery.php b/system/libraries/javascript/Jquery.php
index 03574c6..f30d7c6 100644
--- a/system/libraries/javascript/Jquery.php
+++ b/system/libraries/javascript/Jquery.php
@@ -2,7 +2,7 @@
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
  *
diff --git a/user_guide_src/cilexer/cilexer/cilexer.py b/user_guide_src/cilexer/cilexer/cilexer.py
index 713268e..1c41f2a 100644
--- a/user_guide_src/cilexer/cilexer/cilexer.py
+++ b/user_guide_src/cilexer/cilexer/cilexer.py
@@ -1,7 +1,7 @@
 # CodeIgniter
 # http://codeigniter.com
 # 
-# An open source application development framework for PHP 5.1.6 or newer
+# An open source application development framework for PHP 5.2.4 or newer
 # 
 # NOTICE OF LICENSE
 # 
diff --git a/user_guide_src/source/_themes/eldocs/static/asset/css/common.css b/user_guide_src/source/_themes/eldocs/static/asset/css/common.css
index b9e28ae..66768ba 100644
--- a/user_guide_src/source/_themes/eldocs/static/asset/css/common.css
+++ b/user_guide_src/source/_themes/eldocs/static/asset/css/common.css
@@ -2,7 +2,7 @@
 CodeIgniter
 http://codeigniter.com
 
-An open source application development framework for PHP 5.1.6 or newer
+An open source application development framework for PHP 5.2.4 or newer
 
 NOTICE OF LICENSE
 
diff --git a/user_guide_src/source/changelog.rst b/user_guide_src/source/changelog.rst
index bef405e..7670da1 100644
--- a/user_guide_src/source/changelog.rst
+++ b/user_guide_src/source/changelog.rst
@@ -19,6 +19,7 @@
 
 -  General Changes
 
+   -  PHP 5.1.6 is no longer supported. CodeIgniter now requires PHP 5.2.4.
    -  Added an optional backtrace to php-error template.
    -  Added Android to the list of user agents.
    -  Added Windows 7 to the list of user platforms.
diff --git a/user_guide_src/source/general/requirements.rst b/user_guide_src/source/general/requirements.rst
index 3862355..a927b7a 100644
--- a/user_guide_src/source/general/requirements.rst
+++ b/user_guide_src/source/general/requirements.rst
@@ -2,7 +2,7 @@
 Server Requirements
 ###################
 
--  `PHP <http://www.php.net/>`_ version 5.1.6 or newer.
+-  `PHP <http://www.php.net/>`_ version 5.2.4 or newer.
 -  A Database is required for most web application programming. Current
-   supported databases are MySQL (4.1+), MySQLi, MS SQL, Postgres, Oracle,
+   supported databases are MySQL (5.1+), MySQLi, MS SQL, Postgres, Oracle,
    SQLite, ODBC and CUBRID.
\ No newline at end of file
diff --git a/user_guide_src/source/installation/upgrade_200.rst b/user_guide_src/source/installation/upgrade_200.rst
index 0bcbd5c..b39f4fd 100644
--- a/user_guide_src/source/installation/upgrade_200.rst
+++ b/user_guide_src/source/installation/upgrade_200.rst
@@ -102,7 +102,7 @@
 details, but here are some of the larger changes that are more likely to
 impact your code:
 
-- CodeIgniter now requires PHP 5.1.6.
+- CodeIgniter now requires PHP 5.2.4.
 - Scaffolding has been removed.
 - The CAPTCHA plugin in now a :doc:`helper </helpers/captcha_helper>`.
 - The JavaScript calendar plugin was removed.