Introducing Insta: Snapshot Testing for Ruby — Instead of hand-writing expected values, tests assert against a recorded snapshot of your code's output. When it changes, an interactive CLI shows the diff for you to accept or reject. Extracted from Herb and supports Minitest and RSpec. GitHub repo.

Marco Roth

🚨 Behind on Rails? 7.2 Goes EOL in Less Than a Month… — Rails 7.2 reaches end of life next month. We've put 60,000+ hours into Rails upgrades, with real case studies and open source Claude Code skills. Upgrade with us or add capacity to your engineering team. Rails upgrades by experts, not guesswork.

FastRuby.io | Rails Upgrade Services sponsor

lobste.rs Migrates from MariaDB to SQLite — The lobste.rs programming link aggregator is built on an open source Rails app and, after a process spanning years, has now switched entirely to SQLite on a single instance. A good real-world case study for the Rails-on-SQLite era.

Dziedzic, Harkins, et al.

How to Start a Ruby Meetup — Fantastic advice for putting on your own Ruby get-together. The guidance is generic enough to work for technical meetups of any flavor. If you do well, there's also a guide to putting on a Ruby conference.

The Ruby Events Team

Where AI Belongs in a Rails Product — A Rails case study on RubyLLM agents, synthetic data, and knowing when not to use an LLM.

SINAPTIA sponsor

SimpleCov 1.0: Code Coverage for Ruby — The popular code coverage tool hits v1.0 after 15+ years at 0.x, bringing together a new report UI, redesigned configuration API, and improved parallel testing support. No release post means I might need to blog about this soon as it's a neat tool!

Berlin et al.

AppSignal for Startups: Up to 50% Off the Full Platform — Bootstrapped startups get up to 25% off ongoing; YC teams up to 50%. The full platform, not a cut-down tier.

AppSignal sponsor

Shopify’s Ruby Style Guide 3.0 — As one of the largest employers of Rubyists, Shopify is keen to enforce a particular way of writing Ruby there. This style guide is their attempt at that, and is also packed into a special RuboCop cop: rubocop-shopify. The rules have changed somewhat in this new version.

Shopify

minitest-strict: Stricter Assertions for Minitest — "Minitest's built-in assertions are lenient in ways that can mask bugs", says Erik, whose library redefines several assertions to require strict boolean values, plus adds assert_true, assert_false and assert_eql.

Erik Berlin

BinData 3.0: A Declarative Way to Read/Write Binary Data — Rather than messing around with unpack, this makes working with data at the bit/byte level declarative and Ruby-like (example).

Dion Mendel