Ruby 4
Ruby Box is a new (experimental) feature to provide separation about definitions. Ruby Box is enabled when an environment variable
RUBY_BOX=1is specified. The class isRuby::Box.Definitions loaded in a box are isolated in the box. Ruby Box can isolate/separate monkey patches, changes of global/class variables, class/module definitions, and loaded native/ruby libraries from other boxes.
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ZJIT is a new just-in-time (JIT) compiler, which is developed as the next generation of YJIT. You need Rust 1.85.0 or newer to build Ruby with ZJIT support, and ZJIT is enabled when
--zjitis specified.We’re building a new compiler for Ruby because we want to both raise the performance ceiling (bigger compilation unit size and SSA IR) and encourage more outside contribution (by becoming a more traditional method compiler). See our blog post for more details.
[…]
Ractor, Ruby’s parallel execution mechanism, has received several improvements. A new class,
Ractor::Port, was introduced to address issues related to message sending and receiving (see our blog post).
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I see they featured DHH on the home page of the ruby-lang website. Ruby has a DHH problem.
Their website is wild in general. The download button requires JavaScript. It's a god damned link, and it requires JavaScript. Not that it affects me, I'd never use Ruby for anything.
