Add support for and start testing against Ruby 4 by larouxn · Pull Request #434 · Shopify/worldwide

larouxn · 2026-02-18T14:45:12Z

What are you trying to accomplish?

Add support for and start testing against Ruby 4.

Requires

Bump minitest to near latest and mocha to latest #362

What approach did you choose and why?

Taken a multi-step approach as can be seen by my various PRs.

Add no-longer-standard gems to the Gemfile and Gemspec.
Upgrade gems (minitest, mocha, pry-byebug/byebug, nokigiri, stringio, i18n) to versions that support Ruby 4.
Add Ruby 4 to CI matrix.
Update .ruby-version to 4.0.1.
Run bundle exec rake and confirm everything looks alright.

Note, for step 1 above I followed the logs (below) that noted various gems as no-longer-standard-library. Specifically added the development gems (irb and benchmark) to the Gemfile and the production gems (logger and ostruct) to the Gemspec. Note, we don't need to add reline if we upgrade pry-byebug to latest in this PR.

Logs showing required gems

`reline`

❯ bundle exec rake
/home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/rubygems_ext.rb:169: warning: method redefined; discarding old encode_with
/home/larouxn/.rubies/ruby-4.0.1/lib/ruby/4.0.0/rubygems/dependency.rb:341: warning: previous definition of encode_with was here
/home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/rubygems_ext.rb:239: warning: already initialized constant Gem::Platform::JAVA
/home/larouxn/.rubies/ruby-4.0.1/lib/ruby/4.0.0/rubygems/platform.rb:279: warning: previous definition of JAVA was here
/home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/rubygems_ext.rb:240: warning: already initialized constant Gem::Platform::MSWIN
/home/larouxn/.rubies/ruby-4.0.1/lib/ruby/4.0.0/rubygems/platform.rb:280: warning: previous definition of MSWIN was here
/home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/rubygems_ext.rb:241: warning: already initialized constant Gem::Platform::MSWIN64
/home/larouxn/.rubies/ruby-4.0.1/lib/ruby/4.0.0/rubygems/platform.rb:281: warning: previous definition of MSWIN64 was here
/home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/rubygems_ext.rb:242: warning: already initialized constant Gem::Platform::MINGW
/home/larouxn/.rubies/ruby-4.0.1/lib/ruby/4.0.0/rubygems/platform.rb:282: warning: previous definition of MINGW was here
/home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/rubygems_ext.rb:243: warning: already initialized constant Gem::Platform::X64_MINGW
/home/larouxn/.rubies/ruby-4.0.1/lib/ruby/4.0.0/rubygems/platform.rb:284: warning: previous definition of X64_MINGW was here
/home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/rubygems_ext.rb:245: warning: already initialized constant Gem::Platform::WINDOWS
/home/larouxn/.rubies/ruby-4.0.1/lib/ruby/4.0.0/rubygems/platform.rb:286: warning: previous definition of WINDOWS was here
/home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/rubygems_ext.rb:246: warning: already initialized constant Gem::Platform::X64_LINUX
/home/larouxn/.rubies/ruby-4.0.1/lib/ruby/4.0.0/rubygems/platform.rb:287: warning: previous definition of X64_LINUX was here
/home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/rubygems_ext.rb:247: warning: already initialized constant Gem::Platform::X64_LINUX_MUSL
/home/larouxn/.rubies/ruby-4.0.1/lib/ruby/4.0.0/rubygems/platform.rb:288: warning: previous definition of X64_LINUX_MUSL was here
/home/larouxn/.gem/ruby/4.0.1/gems/i18n-1.14.1/lib/i18n/exceptions.rb:3: warning: CGI library is removed from Ruby 4.0. Please use cgi/escape instead for CGI.escape and CGI.unescape features.
If you need to use the full features of CGI library, Please install cgi gem.
    Sorry, you can't use byebug without Readline. To solve this, you need to
    rebuild Ruby with Readline support. If using Ubuntu, try `sudo apt-get
    install libreadline-dev` and then reinstall your Ruby.
/home/larouxn/.gem/ruby/4.0.1/gems/byebug-11.1.3/lib/byebug/history.rb:4:in 'Kernel#require': cannot load such file -- readline (LoadError)
Did you mean?  reline
        from /home/larouxn/.gem/ruby/4.0.1/gems/byebug-11.1.3/lib/byebug/history.rb:4:in '<top (required)>'
        from /home/larouxn/.gem/ruby/4.0.1/gems/byebug-11.1.3/lib/byebug/interface.rb:4:in 'Kernel#require_relative'
        from /home/larouxn/.gem/ruby/4.0.1/gems/byebug-11.1.3/lib/byebug/interface.rb:4:in '<top (required)>'
        from /home/larouxn/.gem/ruby/4.0.1/gems/byebug-11.1.3/lib/byebug/core.rb:7:in 'Kernel#require_relative'
        from /home/larouxn/.gem/ruby/4.0.1/gems/byebug-11.1.3/lib/byebug/core.rb:7:in '<top (required)>'
        from /home/larouxn/.gem/ruby/4.0.1/gems/pry-byebug-3.10.1/lib/byebug/processors/pry_processor.rb:3:in 'Kernel#require'
        from /home/larouxn/.gem/ruby/4.0.1/gems/pry-byebug-3.10.1/lib/byebug/processors/pry_processor.rb:3:in '<top (required)>'
        from /home/larouxn/.gem/ruby/4.0.1/gems/pry-byebug-3.10.1/lib/pry-byebug/pry_ext.rb:3:in 'Kernel#require'
        from /home/larouxn/.gem/ruby/4.0.1/gems/pry-byebug-3.10.1/lib/pry-byebug/pry_ext.rb:3:in '<top (required)>'
        from /home/larouxn/.gem/ruby/4.0.1/gems/pry-byebug-3.10.1/lib/pry-byebug/cli.rb:4:in 'Kernel#require'
        from /home/larouxn/.gem/ruby/4.0.1/gems/pry-byebug-3.10.1/lib/pry-byebug/cli.rb:4:in '<top (required)>'
        from /home/larouxn/.gem/ruby/4.0.1/gems/pry-byebug-3.10.1/lib/pry-byebug.rb:4:in 'Kernel#require'
        from /home/larouxn/.gem/ruby/4.0.1/gems/pry-byebug-3.10.1/lib/pry-byebug.rb:4:in '<top (required)>'
        from /home/larouxn/src/github.com/larouxn/worldwide/test/test_helper.rb:11:in 'Kernel#require'
        from /home/larouxn/src/github.com/larouxn/worldwide/test/test_helper.rb:11:in '<top (required)>'
        from /home/larouxn/src/github.com/larouxn/worldwide/test/worldwide/address_formatting_test.rb:3:in 'Kernel#require'
        from /home/larouxn/src/github.com/larouxn/worldwide/test/worldwide/address_formatting_test.rb:3:in '<top (required)>'
        from /home/larouxn/.gem/ruby/4.0.1/gems/rake-13.0.6/lib/rake/rake_test_loader.rb:21:in 'Kernel#require'
        from /home/larouxn/.gem/ruby/4.0.1/gems/rake-13.0.6/lib/rake/rake_test_loader.rb:21:in 'block in <main>'
        from /home/larouxn/.gem/ruby/4.0.1/gems/rake-13.0.6/lib/rake/rake_test_loader.rb:6:in 'Array#select'
        from /home/larouxn/.gem/ruby/4.0.1/gems/rake-13.0.6/lib/rake/rake_test_loader.rb:6:in '<main>'
rake aborted!
Command failed with status (1)
/home/larouxn/.gem/ruby/4.0.1/gems/rake-13.0.6/exe/rake:27:in '<top (required)>'
/home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/cli/exec.rb:58:in 'Kernel.load'
/home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/cli/exec.rb:58:in 'Bundler::CLI::Exec#kernel_load'
/home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/cli/exec.rb:23:in 'Bundler::CLI::Exec#run'
/home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/cli.rb:492:in 'Bundler::CLI#exec'
/home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/vendor/thor/lib/thor/command.rb:27:in 'Bundler::Thor::Command#run'
/home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/vendor/thor/lib/thor/invocation.rb:127:in 'Bundler::Thor::Invocation#invoke_command'
/home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/vendor/thor/lib/thor.rb:392:in 'Bundler::Thor.dispatch'
/home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/cli.rb:34:in 'Bundler::CLI.dispatch'
/home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/vendor/thor/lib/thor/base.rb:485:in 'Bundler::Thor::Base::ClassMethods#start'
/home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/cli.rb:28:in 'Bundler::CLI.start'
/home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/exe/bundle:45:in 'block in <top (required)>'
/home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/friendly_errors.rb:117:in 'Bundler.with_friendly_errors'
/home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/exe/bundle:33:in '<top (required)>'
/home/larouxn/.gem/ruby/4.0.1/bin/bundle:25:in '<main>'
Tasks: TOP => default => test
(See full trace by running task with --trace)

`benchmark`

❯ bundle exec rake
bundler: failed to load command: rake (/home/larouxn/.gem/ruby/4.0.1/bin/rake)
/home/larouxn/.gem/ruby/4.0.1/gems/rake-13.0.6/lib/rake.rb:33:in 'Kernel#require': cannot load such file -- ostruct (LoadError)
Did you mean?  tsort
        from /home/larouxn/.gem/ruby/4.0.1/gems/rake-13.0.6/lib/rake.rb:33:in '<top (required)>'
        from /home/larouxn/.gem/ruby/4.0.1/gems/rake-13.0.6/exe/rake:25:in 'Kernel#require'
        from /home/larouxn/.gem/ruby/4.0.1/gems/rake-13.0.6/exe/rake:25:in '<top (required)>'
        from /home/larouxn/.rubies/ruby-4.0.1/lib/ruby/4.0.0/rubygems.rb:303:in 'Kernel#load'
        from /home/larouxn/.rubies/ruby-4.0.1/lib/ruby/4.0.0/rubygems.rb:303:in 'Gem.activate_and_load_bin_path'
        from /home/larouxn/.gem/ruby/4.0.1/bin/rake:25:in '<top (required)>'
        from /home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/cli/exec.rb:58:in 'Kernel.load'
        from /home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/cli/exec.rb:58:in 'Bundler::CLI::Exec#kernel_load'
        from /home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/cli/exec.rb:23:in 'Bundler::CLI::Exec#run'
        from /home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/cli.rb:492:in 'Bundler::CLI#exec'
        from /home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/vendor/thor/lib/thor/command.rb:27:in 'Bundler::Thor::Command#run'
        from /home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/vendor/thor/lib/thor/invocation.rb:127:in 'Bundler::Thor::Invocation#invoke_command'
        from /home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/vendor/thor/lib/thor.rb:392:in 'Bundler::Thor.dispatch'
        from /home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/cli.rb:34:in 'Bundler::CLI.dispatch'
        from /home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/vendor/thor/lib/thor/base.rb:485:in 'Bundler::Thor::Base::ClassMethods#start'
        from /home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/cli.rb:28:in 'Bundler::CLI.start'
        from /home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/exe/bundle:45:in 'block in <top (required)>'
        from /home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/friendly_errors.rb:117:in 'Bundler.with_friendly_errors'
        from /home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/exe/bundle:33:in '<top (required)>'
        from /home/larouxn/.rubies/ruby-4.0.1/lib/ruby/4.0.0/rubygems.rb:303:in 'Kernel#load'
        from /home/larouxn/.rubies/ruby-4.0.1/lib/ruby/4.0.0/rubygems.rb:303:in 'Gem.activate_and_load_bin_path'
        from /home/larouxn/.gem/ruby/4.0.1/bin/bundle:25:in '<main>'

`ostruct`

bundle exec rake
bundler: failed to load command: rake (/home/larouxn/.gem/ruby/4.0.1/bin/rake)
/home/larouxn/.gem/ruby/4.0.1/gems/rake-13.0.6/lib/rake.rb:33:in 'Kernel#require': cannot load such file -- ostruct (LoadError)
Did you mean?  tsort
        from /home/larouxn/.gem/ruby/4.0.1/gems/rake-13.0.6/lib/rake.rb:33:in '<top (required)>'
        from /home/larouxn/.gem/ruby/4.0.1/gems/rake-13.0.6/exe/rake:25:in 'Kernel#require'
        from /home/larouxn/.gem/ruby/4.0.1/gems/rake-13.0.6/exe/rake:25:in '<top (required)>'
        from /home/larouxn/.rubies/ruby-4.0.1/lib/ruby/4.0.0/rubygems.rb:303:in 'Kernel#load'
        from /home/larouxn/.rubies/ruby-4.0.1/lib/ruby/4.0.0/rubygems.rb:303:in 'Gem.activate_and_load_bin_path'
        from /home/larouxn/.gem/ruby/4.0.1/bin/rake:25:in '<top (required)>'
        from /home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/cli/exec.rb:58:in 'Kernel.load'
        from /home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/cli/exec.rb:58:in 'Bundler::CLI::Exec#kernel_load'
        from /home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/cli/exec.rb:23:in 'Bundler::CLI::Exec#run'
        from /home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/cli.rb:492:in 'Bundler::CLI#exec'
        from /home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/vendor/thor/lib/thor/command.rb:27:in 'Bundler::Thor::Command#run'
        from /home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/vendor/thor/lib/thor/invocation.rb:127:in 'Bundler::Thor::Invocation#invoke_command'
        from /home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/vendor/thor/lib/thor.rb:392:in 'Bundler::Thor.dispatch'
        from /home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/cli.rb:34:in 'Bundler::CLI.dispatch'
        from /home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/vendor/thor/lib/thor/base.rb:485:in 'Bundler::Thor::Base::ClassMethods#start'
        from /home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/cli.rb:28:in 'Bundler::CLI.start'
        from /home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/exe/bundle:45:in 'block in <top (required)>'
        from /home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/friendly_errors.rb:117:in 'Bundler.with_friendly_errors'
        from /home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/exe/bundle:33:in '<top (required)>'
        from /home/larouxn/.rubies/ruby-4.0.1/lib/ruby/4.0.0/rubygems.rb:303:in 'Kernel#load'
        from /home/larouxn/.rubies/ruby-4.0.1/lib/ruby/4.0.0/rubygems.rb:303:in 'Gem.activate_and_load_bin_path'
        from /home/larouxn/.gem/ruby/4.0.1/bin/bundle:25:in '<main>'

`logger`

❯ bundle exec rake
/home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/rubygems_ext.rb:169: warning: method redefined; discarding old encode_with
/home/larouxn/.rubies/ruby-4.0.1/lib/ruby/4.0.0/rubygems/dependency.rb:341: warning: previous definition of encode_with was here
/home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/rubygems_ext.rb:239: warning: already initialized constant Gem::Platform::JAVA
/home/larouxn/.rubies/ruby-4.0.1/lib/ruby/4.0.0/rubygems/platform.rb:279: warning: previous definition of JAVA was here
/home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/rubygems_ext.rb:240: warning: already initialized constant Gem::Platform::MSWIN
/home/larouxn/.rubies/ruby-4.0.1/lib/ruby/4.0.0/rubygems/platform.rb:280: warning: previous definition of MSWIN was here
/home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/rubygems_ext.rb:241: warning: already initialized constant Gem::Platform::MSWIN64
/home/larouxn/.rubies/ruby-4.0.1/lib/ruby/4.0.0/rubygems/platform.rb:281: warning: previous definition of MSWIN64 was here
/home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/rubygems_ext.rb:242: warning: already initialized constant Gem::Platform::MINGW
/home/larouxn/.rubies/ruby-4.0.1/lib/ruby/4.0.0/rubygems/platform.rb:282: warning: previous definition of MINGW was here
/home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/rubygems_ext.rb:243: warning: already initialized constant Gem::Platform::X64_MINGW
/home/larouxn/.rubies/ruby-4.0.1/lib/ruby/4.0.0/rubygems/platform.rb:284: warning: previous definition of X64_MINGW was here
/home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/rubygems_ext.rb:245: warning: already initialized constant Gem::Platform::WINDOWS
/home/larouxn/.rubies/ruby-4.0.1/lib/ruby/4.0.0/rubygems/platform.rb:286: warning: previous definition of WINDOWS was here
/home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/rubygems_ext.rb:246: warning: already initialized constant Gem::Platform::X64_LINUX
/home/larouxn/.rubies/ruby-4.0.1/lib/ruby/4.0.0/rubygems/platform.rb:287: warning: previous definition of X64_LINUX was here
/home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/rubygems_ext.rb:247: warning: already initialized constant Gem::Platform::X64_LINUX_MUSL
/home/larouxn/.rubies/ruby-4.0.1/lib/ruby/4.0.0/rubygems/platform.rb:288: warning: previous definition of X64_LINUX_MUSL was here
/home/larouxn/.gem/ruby/4.0.1/gems/i18n-1.14.1/lib/i18n/exceptions.rb:3: warning: CGI library is removed from Ruby 4.0. Please use cgi/escape instead for CGI.escape and CGI.unescape features.
If you need to use the full features of CGI library, Please install cgi gem.
/home/larouxn/.gem/ruby/4.0.1/gems/activesupport-7.1.1/lib/active_support/logger_thread_safe_level.rb:4:in 'Kernel#require': cannot load such file -- logger (LoadError)
        from /home/larouxn/.gem/ruby/4.0.1/gems/activesupport-7.1.1/lib/active_support/logger_thread_safe_level.rb:4:in '<top (required)>'
        from /home/larouxn/.gem/ruby/4.0.1/gems/activesupport-7.1.1/lib/active_support/logger_silence.rb:5:in 'Kernel#require'
        from /home/larouxn/.gem/ruby/4.0.1/gems/activesupport-7.1.1/lib/active_support/logger_silence.rb:5:in '<top (required)>'
        from /home/larouxn/.gem/ruby/4.0.1/gems/activesupport-7.1.1/lib/active_support/logger.rb:3:in 'Kernel#require'
        from /home/larouxn/.gem/ruby/4.0.1/gems/activesupport-7.1.1/lib/active_support/logger.rb:3:in '<top (required)>'
        from /home/larouxn/.gem/ruby/4.0.1/gems/activesupport-7.1.1/lib/active_support.rb:30:in 'Kernel#require'
        from /home/larouxn/.gem/ruby/4.0.1/gems/activesupport-7.1.1/lib/active_support.rb:30:in '<top (required)>'
        from /home/larouxn/src/github.com/larouxn/worldwide/lib/worldwide.rb:4:in 'Kernel#require'
        from /home/larouxn/src/github.com/larouxn/worldwide/lib/worldwide.rb:4:in '<top (required)>'
        from /home/larouxn/src/github.com/larouxn/worldwide/test/test_helper.rb:4:in 'Kernel#require'
        from /home/larouxn/src/github.com/larouxn/worldwide/test/test_helper.rb:4:in '<top (required)>'
        from /home/larouxn/src/github.com/larouxn/worldwide/test/worldwide/address_formatting_test.rb:3:in 'Kernel#require'
        from /home/larouxn/src/github.com/larouxn/worldwide/test/worldwide/address_formatting_test.rb:3:in '<top (required)>'
        from /home/larouxn/.gem/ruby/4.0.1/gems/rake-13.0.6/lib/rake/rake_test_loader.rb:21:in 'Kernel#require'
        from /home/larouxn/.gem/ruby/4.0.1/gems/rake-13.0.6/lib/rake/rake_test_loader.rb:21:in 'block in <main>'
        from /home/larouxn/.gem/ruby/4.0.1/gems/rake-13.0.6/lib/rake/rake_test_loader.rb:6:in 'Array#select'
        from /home/larouxn/.gem/ruby/4.0.1/gems/rake-13.0.6/lib/rake/rake_test_loader.rb:6:in '<main>'
rake aborted!
Command failed with status (1)
/home/larouxn/.gem/ruby/4.0.1/gems/rake-13.0.6/exe/rake:27:in '<top (required)>'
/home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/cli/exec.rb:58:in 'Kernel.load'
/home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/cli/exec.rb:58:in 'Bundler::CLI::Exec#kernel_load'
/home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/cli/exec.rb:23:in 'Bundler::CLI::Exec#run'
/home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/cli.rb:492:in 'Bundler::CLI#exec'
/home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/vendor/thor/lib/thor/command.rb:27:in 'Bundler::Thor::Command#run'
/home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/vendor/thor/lib/thor/invocation.rb:127:in 'Bundler::Thor::Invocation#invoke_command'
/home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/vendor/thor/lib/thor.rb:392:in 'Bundler::Thor.dispatch'
/home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/cli.rb:34:in 'Bundler::CLI.dispatch'
/home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/vendor/thor/lib/thor/base.rb:485:in 'Bundler::Thor::Base::ClassMethods#start'
/home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/cli.rb:28:in 'Bundler::CLI.start'
/home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/exe/bundle:45:in 'block in <top (required)>'
/home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/lib/bundler/friendly_errors.rb:117:in 'Bundler.with_friendly_errors'
/home/larouxn/.gem/ruby/4.0.1/gems/bundler-2.4.10/exe/bundle:33:in '<top (required)>'
/home/larouxn/.gem/ruby/4.0.1/bin/bundle:25:in '<main>'
Tasks: TOP => default => test
(See full trace by running task with --trace)

Note

The one gem I'm not sure what to do with yet is activesupport. While the following (logs below) won't break anything it'd be nice to fix such. The CGI warning is was lead me to bump i18n. For activesupport we should really be looking at getting on latest v8.1.2. v7.1.x is EOL too.

`/home/larouxn/.gem/ruby/4.0.1/gems/activesupport-7.1.1/lib/active_support/core_ext/object/to_query.rb:3: warning: CGI library is removed from Ruby 4.0. Please use cgi/escape instead for CGI.escape and CGI.unescape features.
If you need to use the full features of CGI library, Please install cgi gem.

What should reviewers focus on?

Ideally the prerequisite PRs first as I'd like to merge this as just the Ruby 4 specific changes.

The impact of these changes

We support Ruby 4.

Testing

bundle exec rake, please note that the phonelib frozen string warnings will be fixed by #366.

Checklist

I have added a CHANGELOG entry for this change (or determined that it isn't needed)

Determined necessary as it's a pretty big change to add support for a new Ruby version.

- Add no-longer-stanadard-library gems to Gemfile and Gemspec - Upgrade gems to versions that support Ruby 4 - Add Ruby 4 to CI matrix - Bump dev Ruby from 3.4.8 to 4.0.1

larouxn force-pushed the ruby_4 branch from fc6f441 to dc5b4e5 Compare February 18, 2026 14:45

larouxn mentioned this pull request Feb 18, 2026

Add in-use Ruby 4.0 non-standard gems to Gemfile/Gemspec #363

Closed

1 task

larouxn force-pushed the ruby_4 branch from dc5b4e5 to e320138 Compare February 18, 2026 14:49

This was referenced Feb 18, 2026

Replace byebug with debug for debugging #364

Open

Bump bundler from 2.4.10 to 4.0.8 #360

Open

larouxn force-pushed the ruby_4 branch from e320138 to 5b84257 Compare February 18, 2026 15:23

larouxn added 2 commits March 10, 2026 22:51

Bump minitest (5.17.0 to 5.27.0) and mocha (2.0.2 to 3.0.2)

3fbf880

Add support for and start testing against Ruby 4

fc0cda8

- Add no-longer-stanadard-library gems to Gemfile and Gemspec - Upgrade gems to versions that support Ruby 4 - Add Ruby 4 to CI matrix - Bump dev Ruby from 3.4.8 to 4.0.1

larouxn force-pushed the ruby_4 branch from 5b84257 to fc0cda8 Compare March 11, 2026 02:51

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Add support for and start testing against Ruby 4#434

Add support for and start testing against Ruby 4#434
larouxn wants to merge 2 commits intoShopify:mainfrom
larouxn:ruby_4

larouxn commented Feb 18, 2026 •

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larouxn commented Feb 18, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

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What are you trying to accomplish?

What approach did you choose and why?

reline

benchmark

ostruct

logger

What should reviewers focus on?

The impact of these changes

Testing

Checklist

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larouxn commented Feb 18, 2026 •

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`reline`

`benchmark`

`ostruct`

`logger`