diff --git a/VERSION b/VERSION
index eb6088de23..d8da19b1c3 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2.3.stable
+2.4.stable
diff --git a/config/config.php b/config/config.php
index 5c8eabd56c..236a9aa799 100644
--- a/config/config.php
+++ b/config/config.php
@@ -12,7 +12,7 @@
  * @link        http://www.zentao.net
  */
 /* Basic settings. */
-$config->version     = '2.3';             // The version of zentaopms. Don't change it.
+$config->version     = '2.4';             // The version of zentaopms. Don't change it.
 $config->encoding    = 'UTF-8';           // The encoding of znetaopms.
 $config->cookieLife  = time() + 2592000;  // The cookie life time.
 $config->timezone    = 'Asia/Shanghai';   // The time zone setting, for more see http://www.php.net/manual/en/timezones.php