diff --git a/src/Symfony/Component/HttpKernel/Kernel.php b/src/Symfony/Component/HttpKernel/Kernel.php
index 45e53fb254..79f9477f3f 100644
--- a/src/Symfony/Component/HttpKernel/Kernel.php
+++ b/src/Symfony/Component/HttpKernel/Kernel.php
@@ -59,12 +59,12 @@ abstract class Kernel implements KernelInterface, TerminableInterface
     protected $startTime;
     protected $loadClassCache;
 
-    const VERSION = '2.5.7-DEV';
+    const VERSION = '2.5.7';
     const VERSION_ID = '20507';
     const MAJOR_VERSION = '2';
     const MINOR_VERSION = '5';
     const RELEASE_VERSION = '7';
-    const EXTRA_VERSION = 'DEV';
+    const EXTRA_VERSION = '';
 
     /**
      * Constructor.