Add Ruby 4.0 to the CI matrix by willnet · Pull Request #155 · mdp/rotp
CGI.parse is no longer bundled in Ruby 4.0. ref: https://www.ruby-lang.org/en/news/2025/12/25/ruby-4-0-0-released/#stdlib-compatibility-issues This causes tests to fail on Ruby 4.0, so update the t...
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