RubyGems 4.0.15 includes enhancements and bug fixes and Bundler 4.0.15 includes enhancements and bug fixes. 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=4.0.15 RubyGems Release Notes Enhancements: Rubygems: Fix Gem::Request for PQC support, adding integration connection tests. Pull request #9615 by junaruga Reduce peak memory usage of full index loading and bundle install.