diff --git a/ietf/__init__.py b/ietf/__init__.py
index f791b90ff..c1faec0fd 100644
--- a/ietf/__init__.py
+++ b/ietf/__init__.py
@@ -1,6 +1,6 @@
 # Copyright The IETF Trust 2007, All Rights Reserved
 
-__version__ = "3.65-dev"
+__version__ = "4.00rc1"
 
 __date__    = "$Date$"