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2025-11-26-4.0.0.beta2-released.md

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2025-11-26-4.0.0.beta2-released.md

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title 4.0.0.beta2 Released
layout post
author Hiroshi SHIBATA
author_email hsbt@ruby-lang.org

RubyGems 4.0.0.beta2 includes deprecations, enhancements and bug fixes and Bundler 4.0.0.beta2 includes features, performance, 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=4.0.0.beta2

RubyGems Release Notes

Deprecations:

  • Deprecate comparing Gem::Version objects with strings. Pull request #9085 by tenderlove

Enhancements:

  • Undeprecate Gem::Version#<=> against strings. Pull request #9110 by byroot
  • Installs bundler 4.0.0.beta2 as a default gem.

Bug fixes:

  • Respect BUNDLE_VERSION config at Gem::BundlerVersionFinder. Pull request #9106 by hsbt

Bundler Release Notes

Features:

  • Support bundle install --lockfile option #9111
  • Add support for lockfile in Gemfile and bundle install --no-lock #9059

Performance:

  • Run git operations in parallel to speed things up: #9100

Enhancements:

  • Fixup GH-9085 #9108
  • Add go_gem/rake_task for Go native extention gem skeleton #9105
  • Keep legacy windows platform, not removed them #9104

Bug fixes:

  • Check for file existence before deletion from cache #9095

Manual Installation

To install RubyGems by hand see the Download RubyGems page.

SHA256 Checksums:

  • rubygems-4.0.0.beta2.tgz
    56363005d89de2e7d0ffb309ea966eff32e4aba80364366b0aac47cca6536748
  • rubygems-4.0.0.beta2.zip
    66cda8eaf12a0c20e0b44461c9d6bd33b647c03c333c0c59cd49b8ba7dce5dcf
  • rubygems-update-4.0.0.beta2.gem
    6aa2c4352e176b97982ffe8d85cd285730c04f980b35d093af3975ca8a89c6a7