179 lines
4.5 KiB
Markdown
179 lines
4.5 KiB
Markdown
# NEWS for Ruby 3.2.0
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This document is a list of user-visible feature changes
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since the **3.1.0** release, except for bug fixes.
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Note that each entry is kept to a minimum, see links for details.
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## Language changes
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* Anonymous rest and keyword rest arguments can now be passed as
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arguments, instead of just used in method parameters.
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[[Feature #18351]]
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```ruby
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def foo(*)
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bar(*)
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end
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def baz(**)
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quux(**)
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end
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```
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* Constant assignment evaluation order for constants set on explicit
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objects has been made consistent with single attribute assignment
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evaluation order. With this code:
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```ruby
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foo::BAR = baz
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```
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`foo` is now called before `baz`. Similarly, for multiple assignment
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to constants, left-to-right evaluation order is used. With this
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code:
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```ruby
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foo1::BAR1, foo2::BAR2 = baz1, baz2
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```
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The following evaluation order is now used:
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1. `foo1`
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2. `foo2`
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3. `baz1`
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4. `baz2`
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[[Bug #15928]]
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* Find pattern is no longer experimental.
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[[Feature #18585]]
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## Command line options
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## Core classes updates
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Note: We're only listing outstanding class updates.
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* Hash
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* Hash#shift now always returns nil if the hash is
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empty, instead of returning the default value or
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calling the default proc. [[Bug #16908]]
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* MatchData
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* MatchData#byteoffset has been added. [[Feature #13110]]
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* Module
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* Module.used_refinements has been added. [[Feature #14332]]
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* Module#refinements has been added. [[Feature #12737]]
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* Module#const_added has been added. [[Feature #17881]]
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* Proc
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* Proc#dup returns an instance of subclass. [[Bug #17545]]
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* Refinement
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* Refinement#refined_class has been added. [[Feature #12737]]
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* Set
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* Set is now available as a builtin class without the need for `require "set"`. [[Feature #16989]]
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It is currently autoloaded via the `Set` constant or a call to `Enumerable#to_set`.
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* String
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* String#byteindex and String#byterindex have been added. [[Feature #13110]]
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* Struct
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* A Struct class can also be initialized with keyword arguments
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without `keyword_init: true` on `Struct.new` [[Feature #16806]]
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## Stdlib updates
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* The following default gem are updated.
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* RubyGems 3.4.0.dev
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* bigdecimal 3.1.2
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* bundler 2.4.0.dev
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* etc 1.4.0
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* io-console 0.5.11
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* io-wait 0.2.2
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* ipaddr 1.2.4
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* reline 0.3.1
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* securerandom 0.2.0
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* The following bundled gems are updated.
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* net-imap 0.2.3
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* rbs 2.2.2
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* typeprof 0.21.2
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* The following default gems are now bundled gems.
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## Compatibility issues
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Note: Excluding feature bug fixes.
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### Removed constants
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The following deprecated constants are removed.
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* `Fixnum` and `Bignum` [[Feature #12005]]
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* `Random::DEFAULT` [[Feature #17351]]
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* `Struct::Group`
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* `Struct::Passwd`
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### Removed methods
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The following deprecated methods are removed.
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* `Dir.exists?` [[Feature #17391]]
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* `File.exists?` [[Feature #17391]]
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* `Kernel#=~` [[Feature #15231]]
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* `Kernel#taint`, `Kernel#untaint`, `Kernel#tainted?`
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[[Feature #16131]]
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* `Kernel#trust`, `Kernel#untrust`, `Kernel#untrusted?`
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[[Feature #16131]]
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## Stdlib compatibility issues
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## C API updates
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### Removed C APIs
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The following deprecated APIs are removed.
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* `rb_cData` variable.
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* "taintedness" and "trustedness" functions. [[Feature #16131]]
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## Implementation improvements
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## JIT
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### MJIT
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### YJIT: New experimental in-process JIT compiler
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## Static analysis
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### RBS
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### TypeProf
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## Debugger
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## error_highlight
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## IRB Autocomplete and Document Display
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## Miscellaneous changes
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[Feature #12005]: https://bugs.ruby-lang.org/issues/12005
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[Feature #12737]: https://bugs.ruby-lang.org/issues/12737
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[Feature #13110]: https://bugs.ruby-lang.org/issues/13110
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[Feature #14332]: https://bugs.ruby-lang.org/issues/14332
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[Feature #15231]: https://bugs.ruby-lang.org/issues/15231
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[Bug #15928]: https://bugs.ruby-lang.org/issues/15928
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[Feature #16131]: https://bugs.ruby-lang.org/issues/16131
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[Feature #16806]: https://bugs.ruby-lang.org/issues/16806
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[Bug #16908]: https://bugs.ruby-lang.org/issues/16908
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[Feature #16989]: https://bugs.ruby-lang.org/issues/16989
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[Feature #17351]: https://bugs.ruby-lang.org/issues/17351
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[Feature #17391]: https://bugs.ruby-lang.org/issues/17391
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[Bug #17545]: https://bugs.ruby-lang.org/issues/17545
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[Feature #17881]: https://bugs.ruby-lang.org/issues/17881
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[Feature #18351]: https://bugs.ruby-lang.org/issues/18351
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[Feature #18585]: https://bugs.ruby-lang.org/issues/18585
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