diff --git a/core/Version.php b/core/Version.php
index 583169041900645a9feebce7dcb2c86ed0695f34..0d5a9e14b9364ba6d22e445d7a04a59158cf9085 100644
--- a/core/Version.php
+++ b/core/Version.php
@@ -20,7 +20,7 @@ final class Version
      * The current Piwik version.
      * @var string
      */
-    const VERSION = '2.11.2';
+    const VERSION = '2.12.0-b1';
 
     public function isStableVersion($version)
     {