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Jerkmate
https://docs.ruby-lang.org/ja/latest/method/Range/i/=3d=3d=3d.html
Range#=== (Ruby 4.0 リファレンスマニュアル)
始端と終端の中に obj があるとき、true を返します。 そうでないとき、false を返します。
ruby 4 0range
https://docs.ruby-lang.org/ja/latest/doc/symref.html
Rubyで使われる記号の意味（正規表現の複雑な記号は除く） (Ruby 4.0 リファレンスマニュアル)
[[ref:ex]] [[ref:q]] [[ref:num]] [[ref:per]] [[ref:and]] [[ref:or]] [[ref:plus]] [[ref:minus]] [[ref:ast]] [[ref:slash]] [[ref:hat]] [[ref:sq]] [[ref:period]]...
ruby 4 0
https://www.ruby-lang.org/en/news/2026/03/16/ruby-4-0-2-released/
Ruby 4.0.2 Released | Ruby
Ruby 4.0.2 has been released.
ruby 4 02 released
https://www.devclass.com/development/2026/01/06/ruby-40-released-but-its-best-new-features-are-not-production-ready/4079592
Ruby 4.0 released – but its best new features are not production ready
Jan 6, 2026 - Ruby 4.0 was released on 25 December, following a tradition of pushing out major versions on Christmas day, […]
ruby 4 0best new featuresproduction readyreleased
https://docs.ruby-lang.org/ja/latest/method/Numeric/i/=25.html
Numeric#% (Ruby 4.0 リファレンスマニュアル)
self を other で割った余り r を返します。
ruby 4 0numeric
https://www.ruby-lang.org/en/news/2026/04/21/ruby-4-0-3-released/
Ruby 4.0.3 Released | Ruby
Ruby 4.0.3 has been released.
ruby 4 03 released
https://www.clever.cloud/developers/changelog/2026/01-15-images-update/
Images update: PHP 8.5, Composer 2.9, Ruby 4.0, V (Vlang) 0.5 – Clever Cloud Documentation
PHP 8.5 is now available, Composer 2.9 introduces security features, and the default Hugo version will be updated soon
php 8 5composer 2 9ruby 4 0clever cloud documentationimages update
https://www.redmine.org/issues/43737
Defect #43737: Rendering wiki is significantly slow on Ruby 4.0.1 - Redmine
ruby 4 01 redminedefectrenderingwiki