Prepare for release

Author: segevfiner

CHANGELOG.md

@@ -4,7 +4,7 @@ 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
+## v0.5.0 - 2024-02-11
 ### Added
 - An experimental C API buildable using [cargo-c]. See the generated header file for details on the API. See [cargo-c] for futher details on cargo-c usage.