ruby--ruby/NEWS.md

NEWS for Ruby 3.2.0

This document is a list of user-visible feature changes since the 3.1.0 release, except for bug fixes.

Note that each entry is kept to a minimum, see links for details.

Language changes

• Anonymous rest and keyword rest arguments can now be passed as arguments, instead of just used in method parameters. [Feature #18351]

  def foo(*)
    bar(*)
  end
  def baz(**)
    quux(**)
  end
  

Command line options

Core classes updates

Note: We're only listing outstanding class updates.

• Module

  • Module.used_refinements has been added. [Feature #14332]
  • Module#refinements has been added. [Feature #12737]

• Refinement

  • Refinement#refined_class has been added. [Feature #12737]

Stdlib updates

• The following default gem are updated.
  • RubyGems 3.4.0.dev
  • bundler 2.4.0.dev
  • etc 1.4.0
  • io-console 0.5.11
  • reline 0.3.1
• The following bundled gems are updated.
  • net-imap 0.2.3
  • typeprof 0.21.2
• The following default gems are now bundled gems.

Compatibility issues

Note: Excluding feature bug fixes.

Removed constants

The following deprecated constants are removed.

• Random::DEFAULT [Feature #17351]
• Struct::Group
• Struct::Passwd

Removed methods

The following deprecated methods are removed.

• Dir.exists? [Feature #17391]
• File.exists? [Feature #17391]
• Kernel#=~ [Feature #15231]
• Kernel#taint, Kernel#untaint, Kernel#tainted? [Feature #16131]
• Kernel#trust, Kernel#untrust, Kernel#untrusted? [Feature #16131]

Stdlib compatibility issues

C API updates

Removed C APIs

The following deprecated APIs are removed.

• rb_cData variable.
• "taintedness" and "trustedness" functions. [Feature #16131]

Implementation improvements

JIT

MJIT

YJIT: New experimental in-process JIT compiler

Static analysis

RBS

TypeProf

Debugger

error_highlight

IRB Autocomplete and Document Display

Miscellaneous changes