Bump version to 0.4.0

Author: alexceder

CHANGELOG.md

@@ -4,7 +4,12 @@ All 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/fishbrain/tarpon/compare/v0.3.0...HEAD)
+## [Unreleased](https://github.com/fishbrain/tarpon/compare/v0.4.0...HEAD)
+
+## [0.4.0](https://github.com/fishbrain/tarpon/compare/v0.3.1...v0.4.0) - 2022-06-02
+
+### Added
+- Fix Ruby 3 compatibility
 
 ## [0.3.1](https://github.com/fishbrain/tarpon/compare/v0.3.0...v0.3.1) - 2021-10-07
 

lib/tarpon/version.rb

@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module Tarpon
-  VERSION = '0.3.1'
+  VERSION = '0.4.0'
 end