CHANGELOG.md in fasterer-0.5.0 vs CHANGELOG.md in fasterer-0.5.1

@@ -1,6 +1,10 @@
 # Changelog
 
+## 0.5.1
+
+- Upgrade to ruby_parser 3.13.0 that fully supports Ruby 2.6
+
 ## 0.5.0
 
 - New style of outputting offenses: `spec/support/output/sample_code.rb:1 For loop is slower than using each.`
 
 ## 0.4.1