increment version and update change log.

changelog.md

@@ -1,5 +1,13 @@
 # Laravel Change Log
 
+## Version 1.6.6
+
+- Fix bug that caused exceptions to not be shown when attempting to render a view that doesn't exist.
+
+### Upgrading from 1.5.5
+
+- Replace **system** directory.
+
 ## Version 1.5.5
 
 - Fix bug in session class cookie option extraction.

public/index.php

@@ -3,7 +3,7 @@
  * Laravel - A clean and classy framework for PHP web development.
  *
  * @package  Laravel
- * @version  1.5.5
+ * @version  1.5.6
  * @author   Taylor Otwell
  * @link     http://laravel.com
  */