zeroize v1.9.1 (#1553)

## Changed
- Replace `Zeroizing`'s derived `Debug` with opaque impl (#1497)

## Removed
- Internal use of `optimization_barrier` (#1535)

## Fixed
- Avoid double-zeroizing `Vec`'s initialized elements (#1525)
- False positive failures in proxy allocator test (#1538)
- Potential uninitialized memory read in fallback code used by
  `optimization_barrier` (#1551)

Author: tarcieri

Cargo.lock

@@ -4,11 +4,21 @@ 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).
 
-## 1.9.1 (UNRELEASED)
+## 1.9.1 (2026-10-06)
+### Changed
+- Replace `Zeroizing`'s derived `Debug` with opaque impl ([#1497])
+
+### Removed
+- Internal use of `optimization_barrier` ([#1535])
+
 ### Fixed
+- Avoid double-zeroizing `Vec`'s initialized elements ([#1525])
 - False positive failures in proxy allocator test ([#1538])
 - Potential uninitialized memory read in fallback code used by `optimization_barrier` ([#1551])
 
+[#1497]: https://github.com/RustCrypto/utils/pull/1497
+[#1525]: https://github.com/RustCrypto/utils/pull/1525
+[#1535]: https://github.com/RustCrypto/utils/pull/1535
 [#1538]: https://github.com/RustCrypto/utils/pull/1538
 [#1551]: https://github.com/RustCrypto/utils/pull/1551
 

zeroize/CHANGELOG.md

@@ -1,6 +1,6 @@
 [package]
 name = "zeroize"
-version = "1.9.0"
+version = "1.9.1"
 authors = ["The RustCrypto Project Developers"]
 edition = "2024"
 rust-version = "1.85"