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The State of Ruby 3 TypingIntroducing RBS, Rubyâs new type signature language We're pleased to announce Ruby 3âs new language for type signatures, RBS. One of the long-stated goals for Ruby 3 has been to add type checking tooling. After much discussion with Matz and the Ruby committer team, we decided to take the incremental step of adding a foundational type signature language called âRBS,â which
Ruby 3.0 was released on December 25th 2020. We can now enjoy the great new features of this version, such as performance boost (we talked about that in this recent article opens a new window ), ractors for concurrency, fiber schedulers, and type checking. If you already have an application running in production and want to be able to use such benefits youâll need to upgrade your Ruby version. Thi
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