Release ascon-xof128 v0.2.0

Author: newpavlov

ascon-xof128/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).
 
-## 0.2.0 (UNRELEASED)
+## 0.2.0 (2026-05-12)
 ### Changed
 - Internal implementation by removing unnecessary buffering ([#849])
 - Serialization format used by `SerializableState` implementations ([#849])