2020-12-25 03:31:48 -05:00
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# NEWS for Ruby 3.1.0
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2020-01-14 22:42:47 -05:00
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2020-02-16 15:00:34 -05:00
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This document is a list of user visible feature changes
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2020-12-25 03:31:48 -05:00
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since the **3.0.0** release, except for bug fixes.
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2020-01-14 22:42:47 -05:00
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2020-12-22 14:27:38 -05:00
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Note that each entry is kept to a minimum, see links for details.
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2020-01-14 22:42:47 -05:00
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2020-01-18 03:46:52 -05:00
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## Language changes
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2020-01-14 22:42:47 -05:00
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2020-01-18 03:46:52 -05:00
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## Command line options
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2020-03-03 03:37:51 -05:00
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## Core classes updates
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Outstanding ones only.
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2020-01-14 22:42:47 -05:00
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2021-01-02 02:42:45 -05:00
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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 14:59:25 -05:00
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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 04:35:54 -05:00
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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 03:37:51 -05:00
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## Stdlib updates
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Outstanding ones only.
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2020-03-03 03:37:51 -05:00
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## Compatibility issues
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Excluding feature bug fixes.
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2020-08-24 02:38:03 -04:00
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## Stdlib compatibility issues
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2020-06-18 08:11:19 -04:00
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2021-01-21 01:02:24 -05:00
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* `ERB#initialize` warns `safe_level` and later arguments even without -w.
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[[Feature #14256]]
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2020-01-18 03:46:52 -05:00
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## C API updates
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2020-01-14 22:42:47 -05:00
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2020-01-18 03:46:52 -05:00
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## Implementation improvements
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2020-01-14 22:42:47 -05:00
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2020-06-26 03:54:05 -04:00
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### JIT
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2021-01-14 01:36:45 -05:00
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* `RubyVM::MJIT` is renamed to `RubyVM::JIT`.
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2020-11-10 12:15:57 -05:00
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## Static analysis
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2020-10-20 00:16:19 -04:00
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### RBS
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2020-09-25 04:08:39 -04:00
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2020-10-20 00:16:19 -04:00
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### TypeProf
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2020-01-18 03:46:52 -05:00
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## Miscellaneous changes
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2021-01-21 01:02:24 -05:00
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[Feature #14256]: https://bugs.ruby-lang.org/issues/14256
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2021-01-17 04:35:54 -05:00
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[Feature #16806]: https://bugs.ruby-lang.org/issues/16806
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2021-01-02 02:42:45 -05:00
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[Feature #17312]: https://bugs.ruby-lang.org/issues/17312
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2021-01-14 14:59:25 -05:00
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[Bug #17423]: https://bugs.ruby-lang.org/issues/17423
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