rand_hc: Update changelog and bump version

Author: vks

rand_hc/CHANGELOG.md

@@ -4,9 +4,11 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [unreleased]
+## [0.5.1] - 2026-06-16
 ### Changes
-- Clarify which version of HC-128 is implemented
+- Explicitly document which version of HC-128 is implemented ([#113])
+
+[#113]: https://github.com/rust-random/rngs/pull/113
 
 ## [0.5.0] - 2026-02-01
 ### Changes

rand_hc/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "rand_hc"
-version = "0.5.0"
+version = "0.5.1"
 authors = ["The Rand Project Developers"]
 license = "MIT OR Apache-2.0"
 readme = "README.md"