diff --git a/CHANGELOG.md b/CHANGELOG.md
index fda69ae..47befe3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,7 @@
 *The changelog has only been started with version 0.3.12, previous
 changes must be reconstructed from revision history.*
 
+* 0.4: Python 3 support and switch to alembic for migrations.
 * 0.3.15: Fixes to update and insertion of data, thanks to @cli248
   and @abhinav-upadhyay.
 * 0.3.14: dataset went viral somehow. Thanks to @gtsafas for
diff --git a/setup.py b/setup.py
index 3f0d700..95ef190 100644
--- a/setup.py
+++ b/setup.py
@@ -8,7 +8,7 @@ if sys.version_info <= (2, 6):
 
 setup(
     name='dataset',
-    version='0.3.15',
+    version='0.4.0',
     description="Toolkit for Python-based data processing.",
     long_description="",
     classifiers=[