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25 Mar 2026
4.0.9 Released
by Hiroshi SHIBATA
RubyGems 4.0.9 includes enhancements, bug fixes and documentation and Bundler 4.0.9 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=4.0.9
RubyGems Release Notes
Enhancements:
- Fix: include owner role in
gem owner. Pull request #9403 by gjtorikian - Installs bundler 4.0.9 as a default gem.
Bug fixes:
- Fix: Ensure trailing slash is added to source URIs added via gem sources. Pull request #9055 by zirni
Documentation:
- [DOC] Fix link. Pull request #9409 by BurdetteLamar
Bundler Release Notes
Enhancements:
- Check the git version only once per
bundle install. Pull request #9406 by Edouard-chin - Normalize the number of workers when performing parallel operations. Pull request #9400 by Edouard-chin
- Add exponential backoff to bundler retries. Pull request #9163 by ChrisBr
- Introduce a priority queue. Pull request #9389 by Edouard-chin
- Split the download and install process of a gem. Pull request #9381 by Edouard-chin
Bug fixes:
- Retry git fetch without –depth for dumb HTTP transport. Pull request #9405 by hsbt
Manual Installation
To install RubyGems by hand see the Download RubyGems page.
SHA256 Checksums:
- rubygems-4.0.9.tgz
39b1e2c878946e420116c3c26e4e708c0ddbdf7cd4a13c48dd0fc0774c7add8d - rubygems-4.0.9.zip
d77dfd4baabcdc5b0a268f79332239bbbe2647f78d40778c243beace61d856a6 - rubygems-update-4.0.9.gem
e1c0b84abaf481a4e0553d666986156090399afcc099aa18cac6fabbddc45514