Latest Ruby News

A basic guide on how LOAD_PATH and LOADED_FEATURES work in Ruby and how Bundler helps. Example from debugging a confusing ‘already activated gem’ erro...

This article explores Ninja Testing, a Ruby-driven approach presented at Ruby World Conference 2025, showing how to generate daily test suites using c...

December 15, 2025 Lessons from Ruby World Conference 2025 At Ruby World Conference 2025, Masatoshi Seki (関 将俊) and Miwa Fukaya (深谷 美和) presented a tal...

Upgrading the default data-turbo-confirm with a beautiful, native HTML dialog with animations

We’re happy to announce that we’re building a discussion forum for you to connect with other Ruby users.

Ruby’s exception handling mechanism is simple learn Ruby Try Catch

The one where the date was announced for Rails World 2026, where Aaron Patterson showcased the performance of object allocation in Rails 4.0, where Co...

The one where the date was announced for Rails World 2026, where Aaron Patterson showcased the performance of object allocation in Rails 4.0, where Co...

Learn how to use Cucumber in Rails to write feature tests that are clear, maintainable, and easy for your whole team to understand https://danielabaro...

I’ve been working on a feature flag/dynamic config gem and just released a self-hosted option. Flags live in your database (ActiveRecord), no external...

Ruby World Conference 2025 delivered an impressive amount of cutting-edge, valuable discussions.

https://www.reddit.com/r/rails/comments/1pkrqyz/react_rails_in_2025_is_there_a_standard_way_with/?utm_source=share&utm_medium=web3x&utm_name=w...

December 12, 2025 (Based on Koichi Ito’s “Ruby × LLM Ecosystem” presentation at Ruby World Conference 2025)** Large Language Models (LLMs) have rapidl...

I just published a new article inspired by Hayao Kimura’s talk “Exploring the World of Electronic Engineering with PicoRuby” from Ruby World Conferenc...

December 11, 2025 Based on the presentation “Exploring the World of Electronic Engineering with PicoRuby” by Hayao Kimura at Ruby World Conference 202...

React mobile app development boosts performance and flexibility by using a fast, component-based architecture and reusable UI blocks. Its virtual DOM ...

In today’s fast-paced academic environment, nursing students often find themselves juggling multiple responsibilities, from clinical rotations to pers...

New OSS developer tool (built with Ruby): https://railsdesigner.com/new-requestkit/

In today’s fast-paced academic world, balancing work, family, and studies can feel overwhelming. Many students find themselves asking, “pay someone to...

The insight: Every MCP tool definition consumes context tokens BEFORE your first question.

New developments in recent years have made it super-easy to interview Ruby Software Engineers and tell the good ones from the bad ones in 2025: https:...

#​779 — December 11, 2025 Read on the Web Ruby Weekly Adding Iongraph Support to ZJIT — This is a very niche item to feature, but it’s a slow week (😅)...

I’ve published a new article based on a presentation from RubyWorld Conference 2025 about why now is the right time for PicoRuby.

This is not about fixtures vs factories, I use both depending on circumstances. This is about making better use of fixtures on large projects: Why fro...

December 10, 2025 Based on the presentation script from RubyWorld Conference 2025 This article is based on the script of the presentation “Why Now Is ...

https://blog.appsignal.com/2025/12/10/create-a-markdown-editor-in-ruby-on-rails.html

https://www.railscarma.com/blog/ruby-class-variables-vs-instance-variables-explained/

Here’s some lessons learned from studying Fizzy’s test suite.

Do you like admin gems? Or no? And what 37signals built for their applications? Here’s a little essay on choosing admin gem for Rails.

December 9, 2025 A curated list of tools that accelerate development and keep your codebase clean One of the most underrated strengths of Ruby on Rail...

Audio isn’t the king of multimedia formats, video is. That’s why finding a nice audio player isn’t always an easy task. In this article, we will build...

Ruby is a high-level language with elegant syntax. But sometimes, performance-critical tasks can be slow in pure Ruby. Writing a C extension lets us m...

I once used a tool called rvm to manage Ruby versions & gemsets (cool, but complicated), then migrated to the simpler rbenv. But what if you could...

This time I dive into one of the most exciting shifts happening in the Ruby ecosystem: Ruby running on microcontrollers.

December 8, 2025 The RubyWorld Conference 2025, held in Matsue, Japan, showcased an unexpected star of the ecosystem: Ruby running on microcontrollers...

With Kamal hooks, tracking your deploys with Honeybadger is super simple, and with a secret manager like Doppler, you can make sure your API key stays...

In this episode, we look deploying Fizzy to a server and look at some of the notable practices found in the code. https://www.driftingruby.com/episode...

37 Signals launches Fizzy, Bridgetown announces 2.1 beta 1, Bundle 4.0 is released, Wired wrote a strange article about Ruby, and Errol Schmidt publis...

37 Signals launches Fizzy, Bridgetown announces 2.1 beta 1, Bundle 4.0 is released, Wired wrote a strange article about Ruby, and Errol Schmidt publis...

https://github.com/sebyx07/zsv-ruby

Learn how to get a Rails 8 app deployed with Kamal set up to use Doppler for secret management. Includes using Kamal’s Doppler adapter, setting up Dop...

December 5, 2025 A Complete Guide for Ruby on Rails, React, and React Native Developers Cross-Origin Resource Sharing (CORS) is one of the most misund...

Ruby Inject and Ruby Reduce

Master Value Objects in Ruby using the modern Data.define class. Learn about immutability, value equality, and how to eliminate boilerplate code for c...

👉 pressing backspace on an emoji.

December 4, 2025 Most developers think contributing to Ruby’s internals requires wizard-level C skills, decades of experience, and a direct line to Ma...

If your Rails application sends emails to users, it’s often helpful to keep a record of which messages have been sent and to who. The lifecycle callba...

#​778 — December 4, 2025 Read on the Web Ruby Weekly RubyGems and Bundler 4.0 Released — If you want to get ahead of any potential issues the Ruby 4.0...

Codenamed “Festive River City 🥳” (and coming a mere three months after the 2.0 framework release!) With the end-of-year holidays upon us, we’re excite...

I wrote a quick article showing the bindings that truly matter (with code snippets), from PostgreSQL and Redis to MQTT and image processing. If you wo...