diff --git a/CHANGES.erp5.util.txt b/CHANGES.erp5.util.txt
index 7326bbf8381cf4350511c03b47ce5235ff36350f..74d18e2a5db1c386bdd446b9163195a9214ed0ea 100644
--- a/CHANGES.erp5.util.txt
+++ b/CHANGES.erp5.util.txt
@@ -1,7 +1,7 @@
 Changes
 =======
 
-0.4.50 (unreleased)
+0.4.50 (2017-11-22)
 -------------------
 
  * erp5.util.testnode
diff --git a/setup.py b/setup.py
index 67279476f24a6a9d6e7fb0619b80a1b774f46a03..801e2721d3b7b307289dd782598b0422c47543bc 100644
--- a/setup.py
+++ b/setup.py
@@ -2,7 +2,7 @@ from setuptools import setup, find_packages
 import glob
 import os
 
-version = '0.4.49'
+version = '0.4.50'
 name = 'erp5.util'
 long_description = open("README.erp5.util.txt").read() + "\n"