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NEWS for Ruby 3
. 0 . 0 (55.0) -
NEWS for Ruby 3.0.0 このドキュメントは前回リリース以降のバグ修正を除くユーザーに影響のある機能の変更のリストです。
...n Ruby 2.7 will now
result in ArgumentError or different behavior. 14183
* Procs accepting a single rest argument and keywords are no longer
subject to autosplatting. This now matches the behavior of Procs
accepting a single rest argument and no keywords.
16166
//emlist[][ruby]{......overtaken by the same definition in an
ancestor class/module, a RuntimeError is now raised (previously,
it only issued a warning in verbose mode). Additionally, accessing a
class variable from the toplevel scope is now a RuntimeError.
14541
* Assigning to a numbered parameter is......8661
== Core classes updates
Outstanding ones only.
* Array
* The following methods now return Array instances instead of subclass instances when called on subclass instances: 6087
* Array#drop
* Array#drop_while
* Array#flatten
* Array#slice!
* Array#slice /...