Merge pull request #787 from fkmy/add-ruby-4.0-to-ci

Add Ruby 4.0 to CI test matrix

Author: pitbulk

.github/workflows/test.yml

@@ -25,6 +25,7 @@ jobs:
           - 3.2
           - 3.3
           - 3.4
+          - 4.0
           - jruby-9.1
           - jruby-9.2
           - jruby-9.3

README.md

@@ -69,7 +69,7 @@ We created a demo project for Rails 4 that uses the latest version of this libra
 
 The following Ruby versions are covered by CI testing:
 
-* Ruby (MRI) 2.1 to 3.4
+* Ruby (MRI) 2.1 to 4.0
 * JRuby 9.1 to 9.4
 * TruffleRuby (latest)