ctutils v0.4.6 (#1578)

## Added
- `primitives::borrowing_sub_mask_u32`/`_u64` for propagating word-sized
  borrow masks without per-limb `Choice` conversions (#1577)

Author: tarcieri

Cargo.lock

@@ -4,10 +4,12 @@ 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
+## 0.4.6 (2026-10-25)
 ### Added
-- `primitives::borrowing_sub_mask_u32` and `borrowing_sub_mask_u64` for propagating
-  word-sized borrow masks without per-limb `Choice` conversions
+- `primitives::borrowing_sub_mask_u32`/`_u64` for propagating word-sized
+  borrow masks without per-limb `Choice` conversions ([#1577])
+
+[#1577]: https://github.com/RustCrypto/utils/pull/1577
 
 ## 0.4.5 (2026-10-23)
 ### Added

ctutils/CHANGELOG.md

@@ -1,6 +1,6 @@
 [package]
 name = "ctutils"
-version = "0.4.5"
+version = "0.4.6"
 authors = ["RustCrypto Developers"]
 edition = "2024"
 rust-version = "1.87"