Ruby 3.0.0 RC1 Released

[NewsBot]

A new Ruby blog post/announcement has been posted!

We are pleased to announce the release of Ruby 3.0.0-rc1.

It introduces a number of new features and performance improvements.

Static Analysis

RBS

RBS is a language to describe the types of Ruby programs.

Type checkers including TypeProf and other tools supporting RBS will understand Ruby programs much better with RBS definitions.

You can write down the definition of classes and modules: methods defined in the class, instance variables an...

Get the full details here: Ruby 3.0.0 RC1 Released

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Ruby Programming Language | Devtalk

[AstonJ]

Ruby 3 is shaping up nicely:

TypeProf

TypeProf is a type analysis tool bundled in the Ruby package.
Currently, TypeProf serves as a kind of type inference.

Ractor (experimental)

Ractor is an Actor-model like concurrent abstraction designed to provide a parallel execution feature without thread-safety concerns.

You can make multiple ractors and you can run them in parallel. Ractor enables you to make thread-safe parallel programs because ractors can not share normal objects. Communication between ractors are supported by message passing.

Fiber Scheduler

Fiber#scheduler is introduced for intercepting blocking operations. This allows for light-weight concurrency without changing existing code. Watch “Don’t Wait For Me, Scalable Concurrency for Ruby 3” for an overview of how it works.

Other Notable New Features

• One-line pattern matching is redesigned. (experimental)
• Find pattern is added. (experimental)
• Endless method definition is added.
• Hash#except is now built-in.
• Plus loads more

[DevotionGeo]

Wow!