Discover Ruby implementations that offer true parallel threading. Learn how JRuby and TruffleRuby break free from the GVL to deliver real concurrent execution.
Explore Ruby Ractors - the experimental feature that enables true parallel execution. Learn how Ractors work, their limitations, and when they can supercharge your Ruby applications.
Discover Ruby Fibers - lightweight concurrency primitives that give you precise control over execution flow. Learn how Fibers differ from Threads and enable efficient I/O handling.
Learn Ruby threads from the ground up with simple examples. Understand how multithreading works in CRuby, why the GVL exists, and when to use threads effectively.
Ruby 3.4 introduces the `it` parameter for single-argument blocks, offering a more readable alternative to numbered parameters.
Ruby 3.4 starts the transition to frozen string literals by default. Here's what changes, why you should care, and how to prepare your Rails app.
Ruby 3.4 introduces Happy Eyeballs v2, dramatically reducing connection delays for external API calls in Rails applications
