Update changelog

Author: devongovett

CHANGELOG.md

@@ -5,6 +5,14 @@ All notable changes to Parcel will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and Parcel adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
+## [2.1.1] - 2022-01-06
+
+### Fixed
+
+- Do not transpile @swc/helpers. Fixes infinite recursion in typeof helper. - [Details](https://github.com/parcel-bundler/parcel/pull/7529)
+- Include invalidation hash in asset content keys - [Details](https://github.com/parcel-bundler/parcel/pull/7526)
+- Fix loading index.html in dev server when packager/optimizer changes bundle type - [Details](https://github.com/parcel-bundler/parcel/pull/7527)
+
 ## [2.1.0] - 2022-01-05
 
 ### Added