[ci skip] Mark the start of 3.0.7 development
diff --git a/system/core/CodeIgniter.php b/system/core/CodeIgniter.php
index 3eb3e05..f0d7c8f 100644
--- a/system/core/CodeIgniter.php
+++ b/system/core/CodeIgniter.php
@@ -55,7 +55,7 @@
  * @var	string
  *
  */
-	define('CI_VERSION', '3.0.6');
+	define('CI_VERSION', '3.0.6-dev');
 
 /*
  * ------------------------------------------------------