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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。

...bundled. It is a
type analysis tool for Ruby programs.
* Deprecation warnings are no longer shown by default (since Ruby 2.7.2).
Turn them on with `-W:deprecated` (or with `-w` to show other warnings too).
16345
* `$SAFE` and `$KCODE` are now normal global variables with no spec...

...he environment variable `RUBY_PAGER` or `PAGER` is present and has
a non-empty value, and the standard input and output are tty, the `--help`
option shows the help message via the pager designated by the value.
16754

=== `--backtrace-limit` option

The `--backtrace-limit` option limits the maximum...

...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...

ruby 1.6 feature (12.0)

• 2.1.0
• 2.2.0
• 2.3.0
• 2.4.0
• 2.5.0
• 2.6.0
• 2.7.0
• 3.0
• 3.1
• 3.2
• 3.3

• 文書

ruby 1.6 feature ruby version 1.6 は安定版です。この版での変更はバグ修正がメイン になります。

...sh[]

Hash[] で、キーとなる文字列を dup & freeze していませんでした。

a = "key"
h = Hash[a,"val"]
h.keys[0].upcase!
p a
=> ruby 1.6.7 (2002-03-01) [i586-linux]
"KEY"
=> -:3:in `upcase!': can't modify frozen string (Ty...

...きです。((<ruby-dev:17193>))

ruby '-*' -v
=> ruby 1.6.7 (2002-03-01) [i586-linux]

=> ruby: invalid option -* (-h will show valid options)

: 2002-05-22 parsedate

バージョンアップ((<ruby-dev:17171>))

: 2002-05-22 -T オプション

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