diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 3ce556a3..b38a7494 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -1,8 +1,8 @@
 Changelog
 ---------
 
-*unreleased*
-~~~~~~~~~~~~
+20.4 - 2020-05-19
+~~~~~~~~~~~~~~~~~
 
 * Canonicalize version before comparing specifiers. (:issue:`282`)
 * Change type hint for ``canonicalize_name`` to return
diff --git a/packaging/__about__.py b/packaging/__about__.py
index f842e43d..4d998578 100644
--- a/packaging/__about__.py
+++ b/packaging/__about__.py
@@ -18,7 +18,7 @@
 __summary__ = "Core utilities for Python packages"
 __uri__ = "https://github.com/pypa/packaging"
 
-__version__ = "20.4.dev0"
+__version__ = "20.4"
 
 __author__ = "Donald Stufft and individual contributors"
 __email__ = "donald@stufft.io"