CHANGELOG.md in mistral_client-1.2.0 vs CHANGELOG.md in mistral_client-1.2.1

@@ -3,9 +3,14 @@
 All notable changes to this project will be documented in this file.
 This project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [Unreleased]
 
+## [1.2.1] - 2019-11-07
+
+### Added
+- A new exception with the request to mistral attached
+
 ## [1.2.0] - 2018-12-17
 
 ### Added
 - A get health endpoint