Feb 3, 2026

What's Changed

Move check-new-windows-versions.yml workflow from ruby/ruby-builder to ruby/setup-ruby by @eregon in https://github.com/ruby/setup-ruby/pull/870
Add jruby-10.0.3.0 by @ruby-builder-bot in https://github.com/ruby/setup-ruby/pull/875

Full Changelog: https://github.com/ruby/setup-ruby/compare/v1.287.0...v1.288.0

Jan 30, 2026

Improve the mise.toml parser to conform to the TOML specification by @pan93412 in https://github.com/ruby/setup-ruby/pull/868

New Contributors

@pan93412 made their first contribution in https://github.com/ruby/setup-ruby/pull/868

Full Changelog: https://github.com/ruby/setup-ruby/compare/v1.286.0...v1.287.0

Jan 21, 2026

Add truffleruby-33.0.1,truffleruby+graalvm-33.0.1 by @ruby-builder-bot in https://github.com/ruby/setup-ruby/pull/864

Full Changelog: https://github.com/ruby/setup-ruby/compare/v1.285.0...v1.286.0

Jan 20, 2026

Convert to String earlier in generate-windows-versions.rb by @eregon in https://github.com/ruby/setup-ruby/pull/862
Update all dependencies to latest by @eregon in https://github.com/ruby/setup-ruby/pull/863

Full Changelog: https://github.com/ruby/setup-ruby/compare/v1.284.0...v1.285.0

Jan 18, 2026

Fix compatibility to ruby-3.2 by @larskanis in https://github.com/ruby/setup-ruby/pull/861

Full Changelog: https://github.com/ruby/setup-ruby/compare/v1.283.0...v1.284.0