diff --git a/CHANGES.md b/CHANGES.md
index 19b0e0823..abbcd0dfe 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,3 +1,9 @@
+0.4.2
+=====
+
+- Restored compatibility with pickles from 0.4.0.
+- Handle the `func.__qualname__` attribute.
+
 0.4.1
 =====
 
diff --git a/setup.py b/setup.py
index c56819338..1c85d2f52 100644
--- a/setup.py
+++ b/setup.py
@@ -8,7 +8,7 @@
 
 dist = setup(
     name='cloudpickle',
-    version='0.4.1',
+    version='0.4.2',
     description='Extended pickling support for Python objects',
     author='Cloudpipe',
     author_email='cloudpipe@googlegroups.com',