CHANGELOG.md in lite-ruby-1.3.0 vs CHANGELOG.md in lite-ruby-1.3.1

@@ -4,9 +4,13 @@
 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]
 
+## [1.3.1] - 2021-07-19
+### Removed
+- Struct `[]` and `[]=` existing methods
+
 ## [1.3.0] - 2021-07-19
 ### Added
 - Added Ruby 3.0 support
 
 ## [1.2.0] - 2021-07-09