RubyGems 4.0.6 includes enhancements and Bundler 4.0.6 includes bug fixes and documentation. To update to the latest RubyGems you can run: gem update –system [–pre] To update to the latest Bundler you can run: gem install bundler [–pre] bundle update –bundler=4.0.6 RubyGems Release Notes Enhancements: Update vendored resolv to 0.7.0. Pull request #9298 by hsbt Installs bundler 4.0.6 as a default gem.