diff --git a/CHANGES.txt b/CHANGES.txt
index 9eba2b2..0a9a0ce 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -2,7 +2,7 @@
 Change log
 ==========
 
-4.0.0 (unreleased)
+4.0.0 (2013-05-10)
 ==================
 
 - Note / test support for Python 3.2.
diff --git a/setup.py b/setup.py
index 122906d..1b8d0b3 100644
--- a/setup.py
+++ b/setup.py
@@ -57,7 +57,7 @@ def alltests():
 
 setup(
     name="zdaemon",
-    version='4.0.0.dev0',
+    version='4.0.0',
     url="http://www.python.org/pypi/zdaemon",
     license="ZPL 2.1",
     description=