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Summary <p>We are pleased to announce the release of Ruby 3.3.0-preview1. Ruby 3.3 adds a new pure-Ruby JIT compiler named RJIT, uses Lrama as a parser generator, and many performance improvements especially YJIT.</p> <h2>RJIT</h2> <ul> <li>Introduced a pure-Ruby JIT compiler RJIT and replaced MJIT. <ul> <li>RJIT supports only x86_64 architecture on Unix platforms.</li> <li>Unlike MJIT, it doesn’t require a C compiler at runtime.</li> </ul> </li> <li>RJIT exists only for experimental purposes. <ul> <li>You should keep using YJIT in production.</li> </ul> </li> <li>If you are interested in developing JIT for Ruby, please check out <a href="https://rubykaigi.org/2023/presentations/k0kubun.html#day3">k0kubun’s presentation on Day 3 of RubyKaigi</a>.</li> </ul> <h2>Use Lrama instead of Bison</h2> <ul> <li>Replace Bison with <a href="https://github.com/yui-knk/lrama">Lrama LALR parser generator</a> <a href="https://bugs.ruby-lang.org/issues/19637">Feature #19637</a> <ul> <li>If you have interest, please see <a href="https://rubykaigi.org/2023/presentations/spikeolaf.html">The future vision of Ruby Parser</a></li> </ul> </li> </ul> <h2>YJIT</h2> <ul> <li>Significant performance improvements over 3.2 <ul> <li>Splat and rest arguments support has been improved.</li> <li>Registers are allocated for stack operations of the virtual machine.</li> <li>More calls with optional arguments are compiled.</li> <li><code class="language-plaintext highlighter-rouge">Integer#!=</code>, <code class="language-plaintext highlighter-rouge">String#!=</code>, <code class="language-plaintext highlighter-rouge">Kernel#block_given?</code>, <code class="language-plaintext highlighter-rouge">Kernel#is_a?</code>, <code class="language-plaintext highlighter-rouge">Kernel#instance_of?</code>, <code class="language-plaintext highlighter-rouge">Module#===</code> are specially optimized.</li> <li>Instance variables no longer exit to the interpreter with megamorphic Object Shapes.</li> </ul> </li> <li>Metadata for compiled code uses a lot less memory.</li> <li>Improved code generation on ARM64</li> <li>Option to start YJIT in paused mode and then later enable it manually <ul> <li><code class="language-plaintext highlighter-rouge">--yjit-pause</code> and <code class="language-plaintext highlighter-rouge">RubyVM::YJIT.resume</code></li> <li>This can be used to enable YJIT only once your application is done booting</li> </ul> </li> <li>Exit tracing option now supports sampling <ul> <li><code class="language-plaintext highlighter-rouge">--trace-exits-sample-rate=N</code></li> </ul> </li> <li>Multiple bug fixes</li> </ul> <h2>Other Notable New Features</h2> <h3>Language</h3> <h2>Performance improvements</h2> <ul> <li><code class="language-plaintext highlighter-rouge">defined?(@ivar)</code> is optimized with Object Shapes.</li> </ul> <h2>Other notable changes since 3.2</h2> <h2>Compatibility issues</h2> <p>Note: Excluding feature bug fixes.</p> <h3>Removed constants</h3> <p>The following deprecated constants are removed.</p> <h3>Removed methods</h3> <p>The following deprecated methods are removed.</p> <h2>Stdlib compatibility issues</h2> <h3><code class="language-plaintext highlighter-rouge">ext/readline</code> is retired</h3> <ul> <li>We have <code class="language-plaintext highlighter-rouge">reline</code> that is pure Ruby implementation compatible with <code class="language-plaintext highlighter-rouge">ext/readline</code> API. We rely on <code class="language-plaintext highlighter-rouge">reline</code> in the future. If you need to use <code class="language-plaintext highlighter-rouge">ext/readline</code>, you can install <code class="language-plaintext highlighter-rouge">ext/readline</code> via rubygems.org with <code class="language-plaintext highlighter-rouge">gem install readline-ext</code>.</li> <li>We no longer need to install libraries like <code class="language-plaintext highlighter-rouge">libreadline</code> or <code class="language-plaintext highlighter-rouge">libedit</code>.</li> </ul> <h2>C API updates</h2> <h3>Updated C APIs</h3> <p>The following APIs are updated.</p> <h3>Removed C APIs</h3> <p>The following deprecated APIs are removed.</p> <h2>Standard library updates</h2> <p>The following default gems are updated.</p> <ul> <li>RubyGems 3.5.0.dev</li> <li>bigdecimal 3.1.4</li> <li>bundler 2.5.0.dev</li> <li>csv 3.2.7</li> <li>fiddle 1.1.2</li> <li>fileutils 1.7.1</li> <li>irb 1.6.4</li> <li>optparse 0.4.0.pre.1</li> <li>psych 5.1.0</li> <li>reline 0.3.3</li> <li>stringio 3.0.7</li> <li>strscan 3.0.7</li> <li>syntax_suggest 1.0.4</li> <li>time 0.2.2</li> <li>timeout 0.3.2</li> <li>uri 0.12.1</li> </ul> <p>The following bundled gems are updated.</p> <ul> <li>minitest 5.18.0</li> <li>rbs 3.1.0</li> <li>typeprof 0.21.7</li> <li>debug 1.8.0</li> </ul> <p>See GitHub releases like <a href="https://github.com/ruby/logger/releases">Logger</a> or changelog for details of the default gems or bundled gems.</p> <p>See <a href="https://github.com/ruby/ruby/blob/v3_3_0_preview1/NEWS.md">NEWS</a> or <a href="https://github.com/ruby/ruby/compare/v3_2_0...v3_3_0_preview1">commit logs</a> for more details.</p> <p>With those changes, <a href="https://github.com/ruby/ruby/compare/v3_2_0...v3_3_0_preview1#file_bucket">1922 files changed, 75283 insertions(+), 44896 deletions(-)</a> since Ruby 3.2.0!</p> <h2>Download</h2> <ul> <li> <p><a href="https://cache.ruby-lang.org/pub/ruby/3.3/ruby-3.3.0-preview1.tar.gz">https://cache.ruby-lang.org/pub/ruby/3.3/ruby-3.3.0-preview1.tar.gz</a></p> <div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>SIZE: 20428213 SHA1: 5445eec1cd9ddb44e03e74568cac94209c91b42d SHA256: c3454a911779b8d747ab0ea87041030d002d533edacb2485fe558b7084da25ed SHA512: 0f891f140ddc6372aa7c4459f8784126e0c341db7b80e72c51e441c5153c43c2d7b965f7807c076862ac84b9b8b0c6a66bbf66fc341746016151397bb21c782a </code></pre></div> </div> </li> <li> <p><a href="https://cache.ruby-lang.org/pub/ruby/3.3/ruby-3.3.0-preview1.tar.xz">https://cache.ruby-lang.org/pub/ruby/3.3/ruby-3.3.0-preview1.tar.xz</a></p> <div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>SIZE: 15074600 SHA1: 4c22ebca287c87811e1050bf4d59b7d32255b212 SHA256: ae300b49e06c13087dd163b97eddd38db895dc8e0c9904284119795d75303fbb SHA512: 46c1134dba5810847f7f6b4298900a91f5225679d7873548b271f4ef2ad1dc168722562a2e468a2ccf136314176ee613d8c7792fd4411a3f7a44c80b93b417ee </code></pre></div> </div> </li> <li> <p><a href="https://cache.ruby-lang.org/pub/ruby/3.3/ruby-3.3.0-preview1.zip">https://cache.ruby-lang.org/pub/ruby/3.3/ruby-3.3.0-preview1.zip</a></p> <div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>SIZE: 24846962 SHA1: 31774fa653c54107b6afc30adda3a0350d8f41d2 SHA256: 6ecafecf83f2cacf446b2326012f2b6ee1a0614d8dd29bb1fb3f105c27e2c553 SHA512: 794bef847fefbbdbbdced85975a00c9289ef6464810408af3f0f2055052d6b5ef5576dbd41e0d87bb73f1ad276d8e27c36018610f8e2b9936828c0e692f611f0 </code></pre></div> </div> </li> </ul> <h2>What is Ruby</h2> <p>Ruby was first developed by Matz (Yukihiro Matsumoto) in 1993, and is now developed as Open Source. It runs on multiple platforms and is used all over the world especially for web development.</p> <p>Posted by naruse on 12 May 2023</p>

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Hidden blurb --- !ruby/object:Feedjira::Parser::RSSEntry published: 2023-05-12 00:00:00.000000000 Z carlessian_info: news_filer_version: 2 newspaper: Ruby (EN RSS) macro_region: Technology entry_id: !ruby/object:Feedjira::Parser::GloballyUniqueIdentifier guid: https://www.ruby-lang.org/en/news/2023/05/12/ruby-3-3-0-preview1-released/ title: Ruby 3.3.0-preview1 Released categories: [] summary: |2- <p>We are pleased to announce the release of Ruby 3.3.0-preview1. Ruby 3.3 adds a new pure-Ruby JIT compiler named RJIT, uses Lrama as a parser generator, and many performance improvements especially YJIT.</p> <h2>RJIT</h2> <ul> <li>Introduced a pure-Ruby JIT compiler RJIT and replaced MJIT. <ul> <li>RJIT supports only x86_64 architecture on Unix platforms.</li> <li>Unlike MJIT, it doesn’t require a C compiler at runtime.</li> </ul> </li> <li>RJIT exists only for experimental purposes. <ul> <li>You should keep using YJIT in production.</li> </ul> </li> <li>If you are interested in developing JIT for Ruby, please check out <a href="https://rubykaigi.org/2023/presentations/k0kubun.html#day3">k0kubun’s presentation on Day 3 of RubyKaigi</a>.</li> </ul> <h2>Use Lrama instead of Bison</h2> <ul> <li>Replace Bison with <a href="https://github.com/yui-knk/lrama">Lrama LALR parser generator</a> <a href="https://bugs.ruby-lang.org/issues/19637">Feature #19637</a> <ul> <li>If you have interest, please see <a href="https://rubykaigi.org/2023/presentations/spikeolaf.html">The future vision of Ruby Parser</a></li> </ul> </li> </ul> <h2>YJIT</h2> <ul> <li>Significant performance improvements over 3.2 <ul> <li>Splat and rest arguments support has been improved.</li> <li>Registers are allocated for stack operations of the virtual machine.</li> <li>More calls with optional arguments are compiled.</li> <li><code class="language-plaintext highlighter-rouge">Integer#!=</code>, <code class="language-plaintext highlighter-rouge">String#!=</code>, <code class="language-plaintext highlighter-rouge">Kernel#block_given?</code>, <code class="language-plaintext highlighter-rouge">Kernel#is_a?</code>, <code class="language-plaintext highlighter-rouge">Kernel#instance_of?</code>, <code class="language-plaintext highlighter-rouge">Module#===</code> are specially optimized.</li> <li>Instance variables no longer exit to the interpreter with megamorphic Object Shapes.</li> </ul> </li> <li>Metadata for compiled code uses a lot less memory.</li> <li>Improved code generation on ARM64</li> <li>Option to start YJIT in paused mode and then later enable it manually <ul> <li><code class="language-plaintext highlighter-rouge">--yjit-pause</code> and <code class="language-plaintext highlighter-rouge">RubyVM::YJIT.resume</code></li> <li>This can be used to enable YJIT only once your application is done booting</li> </ul> </li> <li>Exit tracing option now supports sampling <ul> <li><code class="language-plaintext highlighter-rouge">--trace-exits-sample-rate=N</code></li> </ul> </li> <li>Multiple bug fixes</li> </ul> <h2>Other Notable New Features</h2> <h3>Language</h3> <h2>Performance improvements</h2> <ul> <li><code class="language-plaintext highlighter-rouge">defined?(@ivar)</code> is optimized with Object Shapes.</li> </ul> <h2>Other notable changes since 3.2</h2> <h2>Compatibility issues</h2> <p>Note: Excluding feature bug fixes.</p> <h3>Removed constants</h3> <p>The following deprecated constants are removed.</p> <h3>Removed methods</h3> <p>The following deprecated methods are removed.</p> <h2>Stdlib compatibility issues</h2> <h3><code class="language-plaintext highlighter-rouge">ext/readline</code> is retired</h3> <ul> <li>We have <code class="language-plaintext highlighter-rouge">reline</code> that is pure Ruby implementation compatible with <code class="language-plaintext highlighter-rouge">ext/readline</code> API. We rely on <code class="language-plaintext highlighter-rouge">reline</code> in the future. If you need to use <code class="language-plaintext highlighter-rouge">ext/readline</code>, you can install <code class="language-plaintext highlighter-rouge">ext/readline</code> via rubygems.org with <code class="language-plaintext highlighter-rouge">gem install readline-ext</code>.</li> <li>We no longer need to install libraries like <code class="language-plaintext highlighter-rouge">libreadline</code> or <code class="language-plaintext highlighter-rouge">libedit</code>.</li> </ul> <h2>C API updates</h2> <h3>Updated C APIs</h3> <p>The following APIs are updated.</p> <h3>Removed C APIs</h3> <p>The following deprecated APIs are removed.</p> <h2>Standard library updates</h2> <p>The following default gems are updated.</p> <ul> <li>RubyGems 3.5.0.dev</li> <li>bigdecimal 3.1.4</li> <li>bundler 2.5.0.dev</li> <li>csv 3.2.7</li> <li>fiddle 1.1.2</li> <li>fileutils 1.7.1</li> <li>irb 1.6.4</li> <li>optparse 0.4.0.pre.1</li> <li>psych 5.1.0</li> <li>reline 0.3.3</li> <li>stringio 3.0.7</li> <li>strscan 3.0.7</li> <li>syntax_suggest 1.0.4</li> <li>time 0.2.2</li> <li>timeout 0.3.2</li> <li>uri 0.12.1</li> </ul> <p>The following bundled gems are updated.</p> <ul> <li>minitest 5.18.0</li> <li>rbs 3.1.0</li> <li>typeprof 0.21.7</li> <li>debug 1.8.0</li> </ul> <p>See GitHub releases like <a href="https://github.com/ruby/logger/releases">Logger</a> or changelog for details of the default gems or bundled gems.</p> <p>See <a href="https://github.com/ruby/ruby/blob/v3_3_0_preview1/NEWS.md">NEWS</a> or <a href="https://github.com/ruby/ruby/compare/v3_2_0...v3_3_0_preview1">commit logs</a> for more details.</p> <p>With those changes, <a href="https://github.com/ruby/ruby/compare/v3_2_0...v3_3_0_preview1#file_bucket">1922 files changed, 75283 insertions(+), 44896 deletions(-)</a> since Ruby 3.2.0!</p> <h2>Download</h2> <ul> <li> <p><a href="https://cache.ruby-lang.org/pub/ruby/3.3/ruby-3.3.0-preview1.tar.gz">https://cache.ruby-lang.org/pub/ruby/3.3/ruby-3.3.0-preview1.tar.gz</a></p> <div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>SIZE: 20428213 SHA1: 5445eec1cd9ddb44e03e74568cac94209c91b42d SHA256: c3454a911779b8d747ab0ea87041030d002d533edacb2485fe558b7084da25ed SHA512: 0f891f140ddc6372aa7c4459f8784126e0c341db7b80e72c51e441c5153c43c2d7b965f7807c076862ac84b9b8b0c6a66bbf66fc341746016151397bb21c782a </code></pre></div> </div> </li> <li> <p><a href="https://cache.ruby-lang.org/pub/ruby/3.3/ruby-3.3.0-preview1.tar.xz">https://cache.ruby-lang.org/pub/ruby/3.3/ruby-3.3.0-preview1.tar.xz</a></p> <div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>SIZE: 15074600 SHA1: 4c22ebca287c87811e1050bf4d59b7d32255b212 SHA256: ae300b49e06c13087dd163b97eddd38db895dc8e0c9904284119795d75303fbb SHA512: 46c1134dba5810847f7f6b4298900a91f5225679d7873548b271f4ef2ad1dc168722562a2e468a2ccf136314176ee613d8c7792fd4411a3f7a44c80b93b417ee </code></pre></div> </div> </li> <li> <p><a href="https://cache.ruby-lang.org/pub/ruby/3.3/ruby-3.3.0-preview1.zip">https://cache.ruby-lang.org/pub/ruby/3.3/ruby-3.3.0-preview1.zip</a></p> <div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>SIZE: 24846962 SHA1: 31774fa653c54107b6afc30adda3a0350d8f41d2 SHA256: 6ecafecf83f2cacf446b2326012f2b6ee1a0614d8dd29bb1fb3f105c27e2c553 SHA512: 794bef847fefbbdbbdced85975a00c9289ef6464810408af3f0f2055052d6b5ef5576dbd41e0d87bb73f1ad276d8e27c36018610f8e2b9936828c0e692f611f0 </code></pre></div> </div> </li> </ul> <h2>What is Ruby</h2> <p>Ruby was first developed by Matz (Yukihiro Matsumoto) in 1993, and is now developed as Open Source. It runs on multiple platforms and is used all over the world especially for web development.</p> <p>Posted by naruse on 12 May 2023</p> rss_fields: - title - url - summary - published - entry_id url: https://www.ruby-lang.org/en/news/2023/05/12/ruby-3-3-0-preview1-released/

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