Update changelog

Author: vmartinelli

CHANGELOG.md

@@ -6,6 +6,16 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 ## [Unreleased]
 
+## [1.2.1]
+
+### Added
+
+- SwiftUI `currentPath` example.
+
+### Fixed
+
+- Availability to the main class.
+
 ## [1.2.0] - 2021-12-06
 
 ### Added