diff --git a/src/Symfony/Component/HttpKernel/Kernel.php b/src/Symfony/Component/HttpKernel/Kernel.php
index d1442149b0..4680ed54ba 100644
--- a/src/Symfony/Component/HttpKernel/Kernel.php
+++ b/src/Symfony/Component/HttpKernel/Kernel.php
@@ -60,12 +60,12 @@ abstract class Kernel implements KernelInterface, TerminableInterface
     protected $startTime;
     protected $loadClassCache;
 
-    const VERSION = '2.6.6';
-    const VERSION_ID = '20606';
+    const VERSION = '2.6.7-DEV';
+    const VERSION_ID = '20607';
     const MAJOR_VERSION = '2';
     const MINOR_VERSION = '6';
-    const RELEASE_VERSION = '6';
-    const EXTRA_VERSION = '';
+    const RELEASE_VERSION = '7';
+    const EXTRA_VERSION = 'DEV';
 
     /**
      * Constructor.