diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..11d5872
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,16 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [Unreleased]
+
+## [2.2.1](https://github.com/RReverser/serde-ndim/compare/v2.2.0...v2.2.1) - 2026-05-01
+
+### Other
+
+- Automate releases via release-plz with OIDC trusted publishing ([#5](https://github.com/RReverser/serde-ndim/pull/5))
+- Add support for bool arrays ([#4](https://github.com/RReverser/serde-ndim/pull/4))
+- Fix docs.rs build ([#3](https://github.com/RReverser/serde-ndim/pull/3))
diff --git a/Cargo.toml b/Cargo.toml
index ade84eb..cae6806 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "serde-ndim"
-version = "2.2.0"
+version = "2.2.1"
 edition = "2021"
 description = "Serde support for n-dimensional arrays from self-describing formats"
 authors = ["Ingvar Stepanyan <me@rreverser.com>"]