Update changelog

CHANGELOG.md

@@ -2,8 +2,8 @@
 
 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/)
+The format is based on [Keep a Changelog](https://keepachangelog.com/) and this
+project adheres to [Semantic Versioning](https://semver.org/)
 
 ## 2.0.0 - 2010-11-14
 
@@ -17,6 +17,19 @@ project adheres to [Semantic Versioning](http://semver.org/)
 * Forward success response to `fetch_raw_info` callback ([#51](https://github.com/dlindahl/omniauth-cas/pull/51))
 * Relax development dependencies to the latest versions
 
+## 1.2.1 (IFAD) - 2018-11-27
+
+### Changed
+
+* Safer request.host call
+
+## 1.2.0 (IFAD) - 2018-11-27
+
+### Added
+
+* service_validator: use custom callback_url if provided
+* Add url_by_request_host option
+
 ## 1.1.1 - 2016-09-19
 
 ### Changed