diff --git a/Cargo.lock b/Cargo.lock
index 826c2a50..86a3201e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -346,7 +346,7 @@ dependencies = [
 
 [[package]]
 name = "k256"
-version = "0.3.0"
+version = "0.4.0"
 dependencies = [
  "cfg-if",
  "criterion",
diff --git a/k256/CHANGELOG.md b/k256/CHANGELOG.md
index 4b95ee26..a6e3e4bb 100644
--- a/k256/CHANGELOG.md
+++ b/k256/CHANGELOG.md
@@ -4,6 +4,31 @@ 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).
 
+## 0.4.0 (2020-08-10)
+### Added
+- ECDSA support ([#73], [#101], [#104], [#105])
+- ECDSA public key recovery support ([#110])
+- OID support ([#103], [#113])
+- Elliptic Curve Diffie-Hellman ([#120])
+- `Zeroize` impl for `AffinePoint` and `FieldElement` types ([#124])
+
+### Changed
+- Optimized field arithmetic with 32-bit and 64-bit backends ([#59], [#82])
+- Bump `elliptic-curve` crate dependency to v0.5 ([#126])
+
+[#59]: https://github.com/RustCrypto/elliptic-curves/pull/59
+[#73]: https://github.com/RustCrypto/elliptic-curves/pull/73
+[#82]: https://github.com/RustCrypto/elliptic-curves/pull/82
+[#101]: https://github.com/RustCrypto/elliptic-curves/pull/101
+[#104]: https://github.com/RustCrypto/elliptic-curves/pull/104
+[#103]: https://github.com/RustCrypto/elliptic-curves/pull/103
+[#105]: https://github.com/RustCrypto/elliptic-curves/pull/105
+[#110]: https://github.com/RustCrypto/elliptic-curves/pull/110
+[#113]: https://github.com/RustCrypto/elliptic-curves/pull/113
+[#120]: https://github.com/RustCrypto/elliptic-curves/pull/120
+[#124]: https://github.com/RustCrypto/elliptic-curves/pull/124
+[#126]: https://github.com/RustCrypto/elliptic-curves/pull/126
+
 ## 0.3.0 (2020-06-08)
 ### Changed
 - Bump `elliptic-curve` crate dependency to v0.4 ([#39])
diff --git a/k256/Cargo.toml b/k256/Cargo.toml
index d1986d51..c598fa54 100644
--- a/k256/Cargo.toml
+++ b/k256/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "k256"
 description = "K-256 (secp256k1) elliptic curve"
-version = "0.3.0"
+version = "0.4.0"
 authors = ["RustCrypto Developers"]
 license = "Apache-2.0 OR MIT"
 documentation = "https://docs.rs/elliptic-curve"
diff --git a/k256/src/lib.rs b/k256/src/lib.rs
index 5544871f..0b3abb8d 100644
--- a/k256/src/lib.rs
+++ b/k256/src/lib.rs
@@ -34,10 +34,13 @@
 
 #![no_std]
 #![cfg_attr(docsrs, feature(doc_cfg))]
-#![doc(html_logo_url = "https://raw.githubusercontent.com/RustCrypto/meta/master/logo_small.png")]
+#![doc(
+    html_logo_url = "https://raw.githubusercontent.com/RustCrypto/meta/master/logo.svg",
+    html_favicon_url = "https://raw.githubusercontent.com/RustCrypto/meta/master/logo.svg",
+    html_root_url = "https://docs.rs/k256/0.4.0"
+)]
 #![forbid(unsafe_code)]
 #![warn(missing_docs, rust_2018_idioms, unused_qualifications)]
-#![cfg_attr(feature = "nightly-bench", feature(test))]
 
 #[cfg(feature = "arithmetic")]
 mod arithmetic;