"Programming Ruby 4.0 is out and the new beta runs against Ruby 4.0 final. https://pragprog.com/titles/ruby6/programming-ruby-4-6th-edition/ New features in the book include: All syntax updates for Ruby 3.4 and 4.0 Ractor section rewritten to cover new API More information on Prism, Ruby::Box RubyGems and Bundler 4.0 Many other library discussions refreshed, including Minitest 6.0 Concurrent-Ruby and Async added to the threading chapter Literal added to the types chapter"
"All syntax updates for Ruby 3.4 and 4.0 Ractor section rewritten to cover new API More information on Prism, Ruby::Box RubyGems and Bundler 4.0 Many other library discussions refreshed, including Minitest 6.0 Concurrent-Ruby and Async added to the threading chapter Literal added to the types chapter"
"Ractor section rewritten to cover new API More information on Prism, Ruby::Box RubyGems and Bundler 4.0 Many other library discussions refreshed, including Minitest 6.0 Concurrent-Ruby and Async added to the threading chapter"
Programming Ruby 4.0 aligns with Ruby 4.0 final and the beta runs against that final release. Syntax coverage is updated for Ruby 3.4 and 4.0. The Ractor section is rewritten to cover the new API and concurrency patterns. New material adds information on Prism and Ruby::Box. RubyGems and Bundler 4.0 are covered for current dependency management workflows. Many library discussions are refreshed, including Minitest 6.0. Concurrent-Ruby and Async are added to the threading chapter to compare concurrency libraries. Literal is added to the types chapter to reflect newer type constructs. Overall, library and tooling guidance is modernized for current Ruby versions.
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