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Copy NEWS.md to doc/NEWS-3.0.0.md and update for 3.1.0
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# NEWS for Ruby 3.1.0
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This document is a list of user visible feature changes
Copy NEWS.md to doc/NEWS-3.0.0.md and update for 3.1.0
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since the **3.0.0** release, except for bug fixes.
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NEWS: We have links now, and there is no changelog anymore [doc]
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Note that each entry is kept to a minimum, see links for details.
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NEWS.md: reduce headings level [ci skip] As the only h2 did not have its exclusively owned body text, merged it to the first paragraph. Then pulled up h3 and deeper headings.
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## Language changes
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NEWS.md: reduce headings level [ci skip] As the only h2 did not have its exclusively owned body text, merged it to the first paragraph. Then pulled up h3 and deeper headings.
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## Command line options
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[DOC] Separated parenthesized notes from subsection headings As the headings become link anchors, remove less useful notes. [ci skip]
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## Core classes updates
Outstanding ones only.
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NEWS: [Feature #17312] [ci skip]
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* Enumerable
* Enumerable#compact is added. [[Feature #17312]]
* Enumerator::Lazy
* Enumerator::Lazy#compact is added. [[Feature #17312]]
Make Module#prepend affect ancestor chain even if argument already included in receiver Previously, if a class included a module and then prepended the same module, the prepend had no effect. This changes the behavior so that the prepend has an effect unless the module is already prepended the receiver. While here, rename the origin_seen variable in include_modules_at, since it is misleading. The variable tracks whether c has been seen, not whether the origin of klass has been. Fixes [Bug #17423]
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* Module
* Module#prepend now modifies the ancestor chain if the receiver
already includes the argument. Module#prepend still does not
modify the ancestor chain if the receiver has already prepended
the argument. [[Bug #17423]]
[DOC] Separated parenthesized notes from subsection headings As the headings become link anchors, remove less useful notes. [ci skip]
2020-03-03 03:37:51 -05:00
## Stdlib updates
Outstanding ones only.
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[DOC] Separated parenthesized notes from subsection headings As the headings become link anchors, remove less useful notes. [ci skip]
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## Compatibility issues
Excluding feature bug fixes.
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NEWS.md: add an example, add references, and move some items
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## Stdlib compatibility issues
Added sdbm entry to NEWS
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NEWS.md: reduce headings level [ci skip] As the only h2 did not have its exclusively owned body text, merged it to the first paragraph. Then pulled up h3 and deeper headings.
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## C API updates
NEWS.md: converted from NEWS and NEWS is deleted
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NEWS.md: reduce headings level [ci skip] As the only h2 did not have its exclusively owned body text, merged it to the first paragraph. Then pulled up h3 and deeper headings.
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## Implementation improvements
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Add NEWS entries about JIT optimizations and a related VM improvement. JIT related commits: * Code size reduction * Deduplicate functions on JIT compaction 818d6d33368a396d9cd3d1a34a84015a9e76c5c8 * Avoid always inlining cold paths of ivar fcd257629063a345c48ff2d8057fa8ab910881f2 * Inline only fast path of rb_class_of b16a2aa938d091c387a7437d94dac7f7bb829ba2 * Eliminate a call instruction on deopt 61b14bb32b7e62760225cb2207df5fe87e5339ab * Cold path partitioning * Mark method call slow paths as COLDFUNC 0e5a58b6bf6aae72b6290a8d68e0a1b6d9eb4f79 * Mark vm_stackoverflow as NOINLINE COLDFUNC 9d71373c237876038cbac63bb0132907a78288a2 * Create mjit_exec_slowpath and mark it as NOINLINE COLDFUNC 083a17a82ad4c1f80cfb9e84cfb1bff5586470b1 * Primitive.attr! 'inline' / Integer#zero? 7561db8c009bb79a75024fa4ed0350bfb3d0626c * Kernel#class 946e5cc668f66a4a0b79461047d3fcba8b71eef0 * (more to come...) * Properly generate opt_send for cfunc cc 7982dc1dfd5df000b7361ccb7bc820da4f3547b8 * Optimize exivar access b736ea63bd4ce4e2fc81dfa73938b39fa70f659c * Make JIT-ed leave leaf 151f8be40d385ada2ebf7feb84210ed7db7ef4df * Inline vm_call_cfunc b9d3ceee8f8e4fade1eddc0c18abee59f9c1eee7 VM: * Enable fastpath on invokesuper 5c2768181382bf84137759efea66f3aaf212665d * History: https://speakerdeck.com/k0kubun/ruby-3-samituto?slide=40 (in Japanese)
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### JIT
Rename RubyVM::MJIT to RubyVM::JIT because the name "MJIT" is an internal code name, it's inconsistent with --jit while they are related to each other, and I want to discourage future JIT implementation-specific (e.g. MJIT-specific) APIs by this rename. [Feature #17490]
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* `RubyVM::MJIT` is renamed to `RubyVM::JIT`.
Fix some typos in NEWS.md.
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## Static analysis
NEWS.md: mention TypeProf
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### RBS
Update NEWS about RBS (#3579)
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NEWS.md: mention TypeProf
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### TypeProf
NEWS.md: reduce headings level [ci skip] As the only h2 did not have its exclusively owned body text, merged it to the first paragraph. Then pulled up h3 and deeper headings.
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## Miscellaneous changes
NEWS: [Feature #17312] [ci skip]
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[Feature #17312]: https://bugs.ruby-lang.org/issues/17312
Make Module#prepend affect ancestor chain even if argument already included in receiver Previously, if a class included a module and then prepended the same module, the prepend had no effect. This changes the behavior so that the prepend has an effect unless the module is already prepended the receiver. While here, rename the origin_seen variable in include_modules_at, since it is misleading. The variable tracks whether c has been seen, not whether the origin of klass has been. Fixes [Bug #17423]
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[Bug #17423]: https://bugs.ruby-lang.org/issues/17423
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