CHANGELOG.md in mistral_client-1.2.1 vs CHANGELOG.md in mistral_client-1.3.0

@@ -3,9 +3,16 @@
 All notable changes to this project will be documented in this file.
 This project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [Unreleased]
 
+## [1.3.0] - 2020-04-20
+
+### Changed
+- Relaxed the constraint on the httparty dependency
+- Added Ruby 2.5 and 2.6 to the build matrix
+- Updated development dependencies
+
 ## [1.2.1] - 2019-11-07
 
 ### Added
 - A new exception with the request to mistral attached