add changelog

Author: infeo

CHANGELOG.md

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+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+The changelog starts with version 5.0.4. Changes to prior versions can be found on the [Github release page](https://github.com/cryptomator/fuse-nio-adapter/releases).
+
+## [Unreleased]
+
+### Added
+
+* changelog file 
+* support libfuse3-4 on Linux (#174)
+
+### Changed
+
+* switch build to JDK 23 (fe75b0a0e627ddb7196806cc7c56ece1ef268cc7)
+