diff --git a/CHANGELOG.md b/CHANGELOG.md
index 86cdcaf..9e4d177 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 # Changelog
 
-## Unreleased
+## 0.4.0 - 2022-07-21
 ### Added
 - Added an alternate prng for non-intel architectures that don't support RDRAND.
 - Add new metric `AddRemoveKeys` for multiple tables using `IfGroupedBy(X, SymmetricDifference())`.
diff --git a/doc/additional-resources/changelog.rst b/doc/additional-resources/changelog.rst
index ec37327..4ac2959 100644
--- a/doc/additional-resources/changelog.rst
+++ b/doc/additional-resources/changelog.rst
@@ -3,8 +3,8 @@
 Changelog
 =========
 
-Unreleased
-----------
+0.4.0 - 2022-07-21
+------------------
 
 Added
 ~~~~~
@@ -19,7 +19,8 @@ Changed
 
 -  Fixed bug in ``ReplaceNulls`` to not allow replacing values for grouping column in ``IfGroupedBy``
 -  Changed ``ReplaceNulls``, ``ReplaceNaNs``, and ``ReplaceInfs`` to only support specific ``IfGroupedBy`` metrics
--  Change parameter ``metric`` for ``Rename`` to be called ``input_metric``
+
+.. _section-1:
 
 0.3.2 - 2022-06-23
 ------------------
@@ -31,7 +32,7 @@ Changed
 
 -  Moved ``IMMUTABLE_TYPES`` from utils/testing.py to utils/type_utils to avoid importing nose when accessing ``IMMUTABLE_TYPES``
 
-.. _section-1:
+.. _section-2:
 
 0.3.1 - 2022-06-23
 ------------------
@@ -45,7 +46,7 @@ Changed
 -  Reverted change from 0.3.0 “Add checks in ``ParallelComposition`` constructor to only permit L1/L2 over SymmetricDifference or AbsoluteDifference.”
 -  Temporarily disabled flaky statistical tests.
 
-.. _section-2:
+.. _section-3:
 
 0.3.0 - 2022-06-22
 ------------------
diff --git a/pyproject.toml b/pyproject.toml
index a259ebc..06a5f13 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -3,7 +3,7 @@ authors = []
 description = "Tumult's differential privacy primitives"
 name = "tmlt.core"
 readme = "README.md"
-version = "0.4.0-rc.1"
+version = "0.4.0"
 license = "Apache-2.0"
 repository = "https://gitlab.com/tumult-labs/core"
 documentation = "https://docs.tmlt.dev/core/latest"