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ruby--ruby/NEWS.md
Takashi Kokubun c0d18a1aa2
[ruby/erb] Revert "Remove safe_level and further positional arguments (https://github.com/ruby/erb/pull/7)" 
This reverts commit 5133efa06f.

While we already handled this deprecation in many libraries, we noticed
that some (e.g. sprockets) relied on the format of `ERB.version` and
2b4182eb10 broke such handling.

Given that the `ERB.version` change was released at 3.1 and it's
obviously new, I'll skip this removal in 3.2 and postpone this to a
future version.
2022-01-17 12:39:17 -08:00

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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

  • Constant assignment evaluation order for constants set on explicit objects has been made consistent with single attribute assignment evaluation order. With this code:

    foo::BAR = baz

    foo is now called before baz. Similarly, for multiple assignment to constants, left-to-right evaluation order is used. With this code:

      foo1::BAR1, foo2::BAR2 = baz1, baz2

    The following evaluation order is now used:

    1. foo1
    2. foo2
    3. baz1
    4. baz2

    [Bug #15928]

Command line options

Core classes updates

Note: We're only listing outstanding class updates.

  • Hash

    • Hash#shift now always returns nil if the hash is empty, instead of returning the default value or calling the default proc. [Bug #16908]

  • Module

  • Proc

    • Proc#dup returns an instance of subclass. [Bug #17545]

  • Refinement

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.

Removed methods

The following deprecated methods are removed.

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