Ruby 4.0: ZJIT, Ruby Box, and Ractors
Originally appeared on The Rails Tech Debt Blog.Ruby 4.0 was released on December 25, 2025, and three features get cited most often when people talk about it: ZJIT, Ruby Box, and a...
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Originally appeared on The Rails Tech Debt Blog.Ruby 4.0 was released on December 25, 2025, and three features get cited most often when people talk about it: ZJIT, Ruby Box, and a...
Originally appeared on Rails at Scale. After some infrastructure deployment shenanigans, we deployed some regions of storefront renderer (SFR) running on ZJIT. We have seen some p...
Originally appeared on Sam Ruby.In 2023 Shopify's Rails at Scale team turned Lobsters into a Rails benchmark for YJIT: a real application, real routes, a fake-data database, SQLite...
Originally appeared on Ruby Weekly. #​815 — September 3, 2026 Read on the Web Ruby Weekly ZJIT 🤝 GC: Inli...
Originally appeared on Peter Zhu.Object allocations from the garbage collector are now inlined in ZJIT.
Originally appeared on Rails at Scale. The title was bait to get you to open this article. But fear not! We will be generating code at run-time today. (See the PR for a sneak peek...
Originally appeared on Rails at Scale. It’s been 8 years since the first just-in-time compiler was introduced in Ruby. However, throughout this time, the garbage collector has bee...
Originally appeared on Ruby News. We are pleased to announce the release of Ruby 4.1.0-preview1. Ruby 4.1 introduces Ractor local GC, Windows support of YJIT, autoload_relative, an...
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