diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index 363e50e9266d62124b74509a7d5709287c7c42d7..50514461320e8ee8da23bfd908268aa0c77fe820 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -1,5 +1,8 @@
 // $Id$
 
+Drupal 5.16-dev, xxxx-xx-xx (development version)
+-----------------------
+
 Drupal 5.15, 2009-01-14
 -----------------------
 - Fixed security issues, (Hardening against SQL injection), see
@@ -8,7 +11,6 @@ Drupal 5.15, 2009-01-14
   scripts.
 - Fixed a variety of small bugs.
 
-
 Drupal 5.14, 2008-12-11
 -----------------------
 - removed a previous change incompatible with PHP 5.1.x and lower.
diff --git a/modules/system/system.module b/modules/system/system.module
index 3c8a51f8d9320b11485360da4000e6418946998f..00529ffc40f247cd9ec9f07239e67452c98815ba 100644
--- a/modules/system/system.module
+++ b/modules/system/system.module
@@ -6,7 +6,7 @@
  * Configuration system that lets administrators modify the workings of the site.
  */
 
-define('VERSION', '5.15');
+define('VERSION', '5.16-dev');
 
 /**
  * Implementation of hook_help().