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Reading up on ZJIT

2 deep · digging since dec 19, 25

  • www.ruby-lang.org favicon
    Ruby 4.0.0 Released

    Ruby 4.0.0 introduces experimental Ruby Box for isolated definitions and ZJIT, a new JIT compiler built in Rust, alongside Ractor improvements and core class updates.

  • nithinbekal.com favicon
    What's new in Ruby 4.0

    Ruby 4.0 ships Christmas 2025 with a new ZJIT compiler, redesigned Ractor ports, experimental isolated namespaces via Ruby::Box, and faster object allocations.