Add changelog entry

Author: newpavlov

inout/CHANGELOG.md

@@ -4,6 +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).
 
+## 0.2.3 (UNRELEASED)
+### Fixed
+- List of safety pre-conditions in `InOutBufReserved::from_raw` docs ([#1502])
+
+[#1502]: https://github.com/RustCrypto/utils/pull/1502
+
 ## 0.2.2 (2025-12-27)
 ### Changed
 - Require `block-padding` v0.4.2 ([#1291])