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# 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
* erb 4.0.4
* fiddle 1.1.3
* io-console 0.7.2
* irb 1.11.2
* net-http 0.4.1
* prism 0.22.0
* reline 0.4.2
* stringio 3.1.1
* strscan 3.1.1
The following bundled gems are updated.
* minitest 5.22.2
* net-ftp 0.3.4
* net-imap 0.4.10
* net-smtp 0.4.0.1
* rbs 3.4.4
* typeprof 0.21.10
* debug 1.9.1
The following bundled gems are promoted from default gems.
* mutex_m 0.2.0
* getoptlong 0.2.1
* base64 0.2.0
* bigdecimal 3.1.6
* observer 0.1.2
* abbrev 0.1.2
* resolv-replace 0.1.1
* rinda 0.2.0
* drb 2.2.0
* nkf 0.2.0
* syslog 0.1.2
* csv 3.2.8
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
* `Array#each` is rewritten in Ruby for better performance [[Feature #20182]].
## JIT
[Feature #18980]: https://bugs.ruby-lang.org/issues/18980
[Bug #20064]: https://bugs.ruby-lang.org/issues/20064
[Feature #20182]: https://bugs.ruby-lang.org/issues/20182
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