2020-12-25 08:31:48 +00:00
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# NEWS for Ruby 3.1.0
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2020-01-15 03:42:47 +00:00
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2020-02-16 20:00:34 +00:00
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This document is a list of user visible feature changes
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2020-12-25 08:31:48 +00:00
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since the **3.0.0** release, except for bug fixes.
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2020-01-15 03:42:47 +00:00
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2020-12-22 19:27:38 +00:00
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Note that each entry is kept to a minimum, see links for details.
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2020-01-15 03:42:47 +00:00
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2020-01-18 08:46:52 +00:00
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## Language changes
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2020-01-15 03:42:47 +00:00
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2020-01-18 08:46:52 +00:00
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## Command line options
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2020-01-15 03:42:47 +00:00
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2020-03-03 08:37:51 +00:00
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## Core classes updates
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Outstanding ones only.
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2020-01-15 03:42:47 +00:00
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2021-01-02 07:42:45 +00:00
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* Enumerable
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* Enumerable#compact is added. [[Feature #17312]]
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* Enumerator::Lazy
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* Enumerator::Lazy#compact is added. [[Feature #17312]]
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2021-01-14 19:59:25 +00:00
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* Module
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* Module#prepend now modifies the ancestor chain if the receiver
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already includes the argument. Module#prepend still does not
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modify the ancestor chain if the receiver has already prepended
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the argument. [[Bug #17423]]
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2021-01-17 09:35:54 +00:00
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* Struct
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* Passing only keyword arguments to Struct#initialize is warned.
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You need to use a Hash literal to set a Hash to a first member.
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[[Feature #16806]]
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2020-03-03 08:37:51 +00:00
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## Stdlib updates
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Outstanding ones only.
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2020-01-15 03:42:47 +00:00
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2020-03-03 08:37:51 +00:00
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## Compatibility issues
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Excluding feature bug fixes.
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2020-01-15 03:42:47 +00:00
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2020-08-24 06:38:03 +00:00
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## Stdlib compatibility issues
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2020-06-18 12:11:19 +00:00
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2020-01-18 08:46:52 +00:00
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## C API updates
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2020-01-15 03:42:47 +00:00
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2020-01-18 08:46:52 +00:00
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## Implementation improvements
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2020-01-15 03:42:47 +00:00
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2020-06-26 07:54:05 +00:00
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### JIT
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2021-01-14 06:36:45 +00:00
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* `RubyVM::MJIT` is renamed to `RubyVM::JIT`.
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2020-11-10 17:15:57 +00:00
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## Static analysis
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2020-10-20 04:16:19 +00:00
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### RBS
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2020-09-25 08:08:39 +00:00
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2020-10-20 04:16:19 +00:00
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### TypeProf
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2020-01-18 08:46:52 +00:00
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## Miscellaneous changes
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2021-01-02 07:42:45 +00:00
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2021-01-17 09:35:54 +00:00
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[Feature #16806]: https://bugs.ruby-lang.org/issues/16806
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2021-01-02 07:42:45 +00:00
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[Feature #17312]: https://bugs.ruby-lang.org/issues/17312
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2021-01-14 19:59:25 +00:00
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[Bug #17423]: https://bugs.ruby-lang.org/issues/17423
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