From 1b3b8a36dfa75456f09cfb34a14580b9acef5e6c Mon Sep 17 00:00:00 2001
From: Tony Arcieri <bascule@gmail.com>
Date: Mon, 19 Jan 2026 19:48:44 -0700
Subject: [PATCH] ctutils v0.4.0

---
 Cargo.lock           |  2 +-
 ctutils/CHANGELOG.md | 27 +++++++++++++++++++++++++++
 ctutils/Cargo.toml   |  2 +-
 3 files changed, 29 insertions(+), 2 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index e13e73a1..eec3f4ad 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -79,7 +79,7 @@ dependencies = [
 
 [[package]]
 name = "ctutils"
-version = "0.4.0-pre.5"
+version = "0.4.0"
 dependencies = [
  "cmov",
  "proptest",
diff --git a/ctutils/CHANGELOG.md b/ctutils/CHANGELOG.md
index 46e31181..1a86ae05 100644
--- a/ctutils/CHANGELOG.md
+++ b/ctutils/CHANGELOG.md
@@ -4,6 +4,33 @@ 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 (2026-01-19)
+### Added
+- `core::num::NonZero<T>` support ([#1368])
+- Pluggable trait impls for `[T]` and `[T; N]` using helper traits: ([#1388])
+  - `CtAssign`: `CtAssignSlice`
+  - `CtEq`: `CtEqSlice`
+  - `CtSelect`: `CtSelectArray`
+- `CtSelectUsingCtAssign` marker trait ([#1391])
+
+### Changed
+- Split `CtAssign` out of `CtSelect` ([#1363])
+- Bump `cmov` to v0.5 ([#1386])
+
+### Removed
+- `BytesCtEq`/`BytesCtSelect` no longer needed because default `[u8]` impls are fast ([#1376])
+- `target_pointer_width` gating ([#1389])
+- `unsafe` code ([#1405])
+
+[#1363]: https://github.com/RustCrypto/utils/pull/1363
+[#1368]: https://github.com/RustCrypto/utils/pull/1368
+[#1376]: https://github.com/RustCrypto/utils/pull/1376
+[#1386]: https://github.com/RustCrypto/utils/pull/1386
+[#1388]: https://github.com/RustCrypto/utils/pull/1388
+[#1389]: https://github.com/RustCrypto/utils/pull/1389
+[#1391]: https://github.com/RustCrypto/utils/pull/1391
+[#1405]: https://github.com/RustCrypto/utils/pull/1405
+
 ## 0.3.2 (2026-01-16)
 ### Added
 - `BytesCtEq` and `BytesCtSelect` traits ([#1359])
diff --git a/ctutils/Cargo.toml b/ctutils/Cargo.toml
index fa089993..86d5d5bd 100644
--- a/ctutils/Cargo.toml
+++ b/ctutils/Cargo.toml
@@ -5,7 +5,7 @@ Constant-time utility library with selection and equality testing support target
 applications. Supports `const fn` where appropriate. Built on the `cmov` crate which provides
 architecture-specific predication intrinsics. Heavily inspired by the `subtle` crate.
 """
-version = "0.4.0-pre.5"
+version = "0.4.0"
 authors = ["RustCrypto Developers"]
 license = "Apache-2.0 OR MIT"
 homepage = "https://github.com/RustCrypto/utils/tree/master/ctselect"