Update changelog

CHANGELOG.md

@@ -5,6 +5,18 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+### Added
+- Custom request handler for DNS service provider
+
+### Changed
+- More consistent handling of options
+
+### Removed
+- dotenv dependency
+
+### Fixed
+- Crash for unexpected JSON data structure
+- Body in http requests
 
 ## [0.3.0] - 2020-11-04
 ### Added