4.0.0

What's new in Ruby 4.0 : r/ruby

Ruby 4.0.0 Released | Ruby

Dec 25, 2025 Reddit Programming

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Ruby’s website got an overhaul

Dec 20, 2025 Lobste.rs

Ruby 4.0.0 preview3 Released We are pleased to announce the release of Ruby 4.0.0-preview3. Ruby 4.0 introduces Ruby::Box and “ZJIT”,…