diff --git a/CHANGELOG.md b/CHANGELOG.md
index 259ed9d..a8d0219 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [Unreleased]
 
+## [v0.4.0] - 2024-01-10
+
 ### Changed
 - Updated to `embedded-hal` `1.0.0` release ([API changes](https://github.com/rust-embedded/embedded-hal/blob/master/embedded-hal/CHANGELOG.md#v100---2023-12-28))
 - Updated to `embedded-hal-nb` `1.0.0` release ([API changes](https://github.com/rust-embedded/embedded-hal/blob/master/embedded-hal-nb/CHANGELOG.md#v100---2023-12-28))
@@ -150,7 +152,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 Initial release
 
-[Unreleased]: https://github.com/rust-embedded/linux-embedded-hal/compare/v0.4.0-alpha.4...HEAD
+[Unreleased]: https://github.com/rust-embedded/linux-embedded-hal/compare/v0.4.0...HEAD
+[v0.4.0]: https://github.com/rust-embedded/linux-embedded-hal/compare/v0.4.0-alpha.4...v0.4.0
 [v0.4.0-alpha.4]: https://github.com/rust-embedded/linux-embedded-hal/compare/v0.4.0-alpha.3...v0.4.0-alpha.4
 [v0.4.0-alpha.3]: https://github.com/rust-embedded/linux-embedded-hal/compare/v0.4.0-alpha.2...v0.4.0-alpha.3
 [v0.4.0-alpha.2]: https://github.com/rust-embedded/linux-embedded-hal/compare/v0.4.0-alpha.1...v0.4.0-alpha.2
diff --git a/Cargo.toml b/Cargo.toml
index 3c28665..ea35bed 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -9,7 +9,7 @@ keywords = ["Linux", "hal"]
 license = "MIT OR Apache-2.0"
 name = "linux-embedded-hal"
 repository = "https://github.com/rust-embedded/linux-embedded-hal"
-version = "0.4.0-alpha.4"
+version = "0.4.0"
 edition = "2018"
 
 [features]
diff --git a/LICENSE-MIT b/LICENSE-MIT
index 432fbea..bc8e989 100644
--- a/LICENSE-MIT
+++ b/LICENSE-MIT
@@ -1,4 +1,5 @@
 Copyright (c) 2018 Jorge Aparicio
+Copyright (c) 2019-2024 The Rust embedded linux team and contributors.
 
 Permission is hereby granted, free of charge, to any
 person obtaining a copy of this software and associated
diff --git a/README.md b/README.md
index 03d5d98..eb18827 100644
--- a/README.md
+++ b/README.md
@@ -13,9 +13,6 @@ This project is developed and maintained by the [Embedded Linux team][team].
 
 ## [Documentation](https://docs.rs/linux-embedded-hal)
 
-Note that current `v0.4.0-alpha.X` releases track the unstable ['embedded-hal'] `v1.0.0-alpha.Y`.
-For bugfixes or backports please open PRs against the `v0.3.x` branch.
-
 ## GPIO character device
 
 Since Linux kernel v4.4 the use of sysfs GPIO was deprecated and replaced by the character device GPIO.
@@ -25,7 +22,7 @@ This crate includes feature flag `gpio_cdev` that exposes `CdevPin` as wrapper a
 To enable it update your Cargo.toml. Please note that in order to prevent `LineHandle` fd from closing you should
 assign to a variable, see [cdev issue](https://github.com/rust-embedded/gpio-cdev/issues/29) for more details.
 ```
-linux-embedded-hal = { version = "0.3", features = ["gpio_cdev"] }
+linux-embedded-hal = { version = "0.4", features = ["gpio_cdev"] }
 ```
 
 `SysfsPin` can be still used with feature flag `gpio_sysfs`.