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NEWS for Ruby 3.0.0 (42.0)

• 3.0
• 3.1
• 3.2
• 3.3

• 文書

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。

...e results by default, and accept the `sort:` keyword option. 8709
* ENV
* ENV.except has been added, which returns a hash excluding the given keys and their values. 15822
* Windows: Read ENV names and values as UTF-8 encoded Strings 12650
* Encoding
* Added new encoding IBM720. 16...

...lections, so please test first! 17176
* Hash
* Hash#transform_keys and Hash#transform_keys! now accept a hash that maps keys to new keys. 16274
* Hash#except has been added, which returns a hash excluding the given keys and their values. 15822
* IO
* IO#nonblock? now defaults to `...

...rd`, `#to_i`, `#to_int`, `#zero?`
* `Struct`: reader methods for 10th or later members
* Constant references are inlined.
* Always generate appropriate code for `==`, `nil?`, and `!` calls depending on a receiver class.
* Reduce the number of PC accesses on branches and method re...