CHANGELOG.md in lite-ruby-1.0.30 vs CHANGELOG.md in lite-ruby-1.0.31

@@ -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]
 
+## [1.0.31] - 2020-09-21
+### Changed
+- Changed `block_given?` => `defined?(yield)` for more performance
+
 ## [1.0.30] - 2020-07-03
 ### Added
 - Added more Ruby 2.7 support
 
 ## [1.0.29] - 2020-07-03