diff --git a/src/Symfony/Component/HttpKernel/Kernel.php b/src/Symfony/Component/HttpKernel/Kernel.php
index 8f983c7a8d..08a2a6ac56 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 = '2.3.22';
-    const VERSION_ID = '20322';
+    const VERSION = '2.3.23-DEV';
+    const VERSION_ID = '20323';
     const MAJOR_VERSION = '2';
     const MINOR_VERSION = '3';
-    const RELEASE_VERSION = '22';
-    const EXTRA_VERSION   = '';
+    const RELEASE_VERSION = '23';
+    const EXTRA_VERSION = 'DEV';
 
     /**
      * Constructor.