diff --git a/src/Symfony/Component/HttpKernel/Kernel.php b/src/Symfony/Component/HttpKernel/Kernel.php
index e628f1f359..10ff79297b 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 = '2.8.42';
-    const VERSION_ID = 20842;
+    const VERSION = '2.8.43-DEV';
+    const VERSION_ID = 20843;
     const MAJOR_VERSION = 2;
     const MINOR_VERSION = 8;
-    const RELEASE_VERSION = 42;
-    const EXTRA_VERSION = '';
+    const RELEASE_VERSION = 43;
+    const EXTRA_VERSION = 'DEV';
 
     const END_OF_MAINTENANCE = '11/2018';
     const END_OF_LIFE = '11/2019';