ruby/NEWS.md

# NEWS for Ruby 3.4.0

This document is a list of user-visible feature changes
since the **3.3.0** release, except for bug fixes.

Note that each entry is kept to a minimum, see links for details.

## Language changes

* `it` is added to reference a block parameter. [[Feature #18980]]

* Keyword splatting `nil` when calling methods is now supported.
  `**nil` is treated similar to `**{}`, passing no keywords,
  and not calling any conversion methods.
  [[Bug #20064]]

## Core classes updates

Note: We're only listing outstanding class updates.

## Stdlib updates

The following default gems are updated.

* RubyGems 3.6.0.dev
* bundler 2.6.0.dev
* csv 3.2.9
* erb 4.0.4
* fiddle 1.1.3
* io-console 0.7.2.dev.1
* net-http 0.4.1
* reline 0.4.2
* stringio 3.1.1
* strscan 3.0.8

The following bundled gems are updated.

* minitest 5.21.1
* net-ftp 0.3.4
* net-imap 0.4.9.1
* net-smtp 0.4.0.1
* rbs 3.4.1
* typeprof 0.21.9
* debug 1.9.1

The following bundled gems are promoted from default gems.

* mutex_m 0.2.0
* getoptlong 0.2.1

See GitHub releases like [GitHub Releases of Logger](https://github.com/ruby/logger/releases) or changelog for details of the default gems or bundled gems.

## Supported platforms

## Compatibility issues

## Stdlib compatibility issues

## C API updates

## Implementation improvements

## JIT

[Feature #18980]: https://bugs.ruby-lang.org/issues/18980
[Bug #20064]: https://bugs.ruby-lang.org/issues/20064