diff --git a/core/lib/Drupal.php b/core/lib/Drupal.php
index 0c4305bfaa69fd590672e9bb0d0bc4ef349a764f..7fbd06ae190308f8a9e61168edd9ceb1577b1e43 100644
--- a/core/lib/Drupal.php
+++ b/core/lib/Drupal.php
@@ -81,7 +81,7 @@ class Drupal {
   /**
    * The current system version.
    */
-  const VERSION = '8.0.0-dev';
+  const VERSION = '8.0.0-beta12';
 
   /**
    * Core API compatibility.