Blog
Back to blog posts
05 Feb 2026
4.0.6 Released
by Hiroshi SHIBATA
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.
Bundler Release Notes
Bug fixes:
- Fix gzip cache corruption when recovering from HTTP 416 responses #9272
- Fallback git/path sources to default source #9301
- Ensure revision is always re-resolved in
git_proxy.rb#9294
Documentation:
- Clarify local gem override docs to require git-sourced gems #9305
Manual Installation
To install RubyGems by hand see the Download RubyGems page.
SHA256 Checksums:
- rubygems-4.0.6.tgz
98049c08fb8a94a12cc10c43ef4997faec76c4c6f328733a938f1ca6aa2c811e - rubygems-4.0.6.zip
5dc4e49b1399a99465bf1ea4c188d920fbe28e0b7193a3dc44891216e1b1d5ff - rubygems-update-4.0.6.gem
bbd93b2e1410ebc41d22e07c1b3346d03b633b09b12421bf0b776ad5c9a3acc4