Update CHANGELOG

Author: razor-x

CHANGELOG.md

@@ -5,6 +5,13 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
+## [2.0.0] / 2022-09-14
+
+### Changed
+
+- (**Breaking**) Require Node.js v14.15.0 or higher.
+- (**Breaking**) Convert to pure ES module.
+
 ## [1.1.0] / 2020-11-19
 
 ### Changed