diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 00000000..aacd86dc
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,23 @@
+# 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]
+
+## [v0.5.0] - 2021-09-20
+
+- Updated `nix` to version `0.22`.
+- Updated `bitflags` to version `1.3`.
+- Updated MSRV to version 1.46.0.
+
+## v0.4.4 - 2020-12-02
+
+The changelog for previous versions was not recorded.
+
+[Unreleased]: https://github.com/rust-embedded/rust-i2cdev/compare/0.5.0...HEAD
+[v0.5.0]: https://github.com/rust-embedded/rust-i2cdev/compare/0.4.0...0.5.0
+
diff --git a/Cargo.toml b/Cargo.toml
index 0eaf9e10..8df9f2fd 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 
 name = "i2cdev"
-version = "0.4.4"
+version = "0.5.0" # remember to update html_root_url
 authors = ["Paul Osborne <osbpau@gmail.com>"]
 license = "MIT/Apache-2.0"
 repository = "https://github.com/rust-embedded/rust-i2cdev"
diff --git a/src/lib.rs b/src/lib.rs
index e845e0df..a97bf3d1 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -97,6 +97,7 @@
 #![crate_name = "i2cdev"]
 #![crate_type = "lib"]
 #![deny(missing_docs)]
+#![doc(html_root_url = "https://docs.rs/i2cdev/0.5.0")]
 
 #[macro_use]
 extern crate bitflags;