add changelog

CHANGELOG.md

@@ -0,0 +1,23 @@
+# 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/1.0.0/).
+
+## [Unreleased]
+
+- ...
+
+## [2024.1.1] - 2024-01-05
+
+### Fixed
+- Fix typo (#25) @c0nd3v
+- Fix updated struct version (#23) @c0nd3v
+- Allow Radius 0 in Demo (#22) @c0nd3v
+
+### Changed
+- [Upstream] Cleanup filter code and improved documentation (#30) @ikpil
+- [Upstream] Make detail mesh edge detection more robust (#26) @ikpil
+- [Upstream] 248275e - Fix: typo error (#153) (#21) @ikpil
+- Code cleanup and small optimizations in RecastFilter.cpp (#29) @ikpil
+- Added UI scaling feature based on monitor resolution in Demo (#28) @ikpil