diff --git a/src/Symfony/Component/HttpKernel/Kernel.php b/src/Symfony/Component/HttpKernel/Kernel.php
index c53d4f43a9..b411d6b0ab 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 = '2.8.0';
-    const VERSION_ID = 20800;
+    const VERSION = '2.8.1-DEV';
+    const VERSION_ID = 20801;
     const MAJOR_VERSION = 2;
     const MINOR_VERSION = 8;
-    const RELEASE_VERSION = 0;
-    const EXTRA_VERSION = '';
+    const RELEASE_VERSION = 1;
+    const EXTRA_VERSION = 'DEV';
 
     const END_OF_MAINTENANCE = '05/2018';
     const END_OF_LIFE = '05/2019';