RubyGems 4.0.19 includes enhancements, bug fixes and documentation and Bundler 4.0.19 includes enhancements, 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=4.0.19 RubyGems Release Notes Enhancements: Reject SafeMarshal collection lengths longer than the remaining input. Pull request #9756 by hsbt Installs bundler 4.0.19 as a default gem.