CHANGELOG.md in attr_json-1.2.0 vs CHANGELOG.md in attr_json-1.3.0

@@ -2,12 +2,16 @@
 Notable changes to this project will be documented in this file.
 
 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](https://github.com/jrochkind/attr_json/compare/v1.2.0...HEAD)
+## [Unreleased](https://github.com/jrochkind/attr_json/compare/v1.3.0...HEAD)
 
+## [1.3.0](https://github.com/jrochkind/attr_json/compare/v1.2.0...v1.3.0)
 
+### Added
+
+* Gemspec allows use with ActiveRecord 6.1.x
 
 ## [1.2.0](https://github.com/jrochkind/attr_json/compare/v1.1.0...v1.2.0)
 
 ### Added