Ruby 3.4's Modular Garbage Collection and MMTk — Ruby’s garbage collector has been the subject of numerous tweaks and improvements over the years, but in Ruby 3.4 you can replace it with an alternative implementation at runtime. It’s a cutting edge, experimental idea, but will allow implementers to improve things and try out new approaches faster.

Matthew Valentine-House

💎 The Previous Ruby Weekly, If You Missed It — I wouldn’t normally feature a prior issue, but it was a ‘surprise’ one to focus on the Christmas Day Ruby 3.4 release, so it’s worth a read if you missed it. We also had some sad news about a much appreciated community member, Noah Gibbs.

Ruby Weekly

Seamless Rails Upgrades: Fixed Price Maintenance — Upgrading RoR can be daunting. Outdated gems, breaking changes, & limited resources often hinder smooth transitions. We offer expert Rails maintenance at a fixed monthly price, your application remains secure, performant, minimal business disruptions.

reinteractive / CodeCare sponsor

Useful Things You Can Do with the Rails Console — It’s always a good sign when you see people linking to an article saying they’ve been using the Rails console for ten years or more and still learnt something from it! There’s a lot of great stuff here.

Paweł Dąbrowski

A Simple Trick to Understand Ruby’s Lazy Enumerator — This article employs some simple, effective, and interactive visuals to drive home the benefit of lazy enumeration in Ruby.

Ross Kaffenberger

How Honeybadger Migrated from Sidekiq to Karafka — Honeybadger ran into some limitations with Sidekiq’s Redis backend, so decided to try Karafka’s Kafka-based approach. Here’s what they learnt.

Roel Bondoc

Can Kamal Really Beat a PaaS? ⚔️ Read the Developer’s Guide — With Rails 8 hot off the presses, we explore just how far Kamal can take your app.. and exactly where it can’t! 😱

Judoscale sponsor

Dissecting Puma: Anatomy of a Ruby Web Server — You might need a few cups of coffee at the ready for this epic! Dan digs into the popular Puma server for serving up Rack apps over HTTP and covers a huge amount of ground about how it works.

Dan Svetlov

Refrigerator: A Way to Freeze All Core Ruby Classes — Designed to be used in both production and testing to make sure no code is making unexpected changes to core classes or modules at runtime.

Jeremy Evans

Gem Shop: A Vulnerable Rails 8 App for Security Education — An intentionally vulnerable Rails app with various security issues so you can see them, explore fixes, and learn about cybersecurity issues in a more hands-on manner rather than encountering them via a text message at 4am..

Michael Lubas (Paraxial.io)

Log Everything, Ask Anything with Honeybadger — Honeybadger transforms your logs into rich events that help you fix issues before your users know what happened. Try our free plan!

Honeybadger sponsor

Sanitize 7.0: Ruby HTML and CSS Sanitizer — A popular, long-standing library that, oddly, we’ve never linked to before despite using it a lot. Sanitize removes all HTML and/or CSS from a string you supply except for the things you want it to contain. v7.0 requires Ruby 3.1+ and improves its set of default ‘relaxed’ rules to fit modern standards.

Ryan Grove

Rumale 1.0: A Machine Learning Library for Ruby — Offers a similar interface to Python’s Scikit-Learn for working with support vector machines, regression, perceptrons, decision trees, K-means, component analysis, and similar concepts and algorithms.

A. Tatsuma

Active Record Adapter for AWS Aurora DSQL — The “very beginnings” of an Active Record connection adapter for Amazon’s new Aurora DSQL database (essentially a Postgres-compatible serverless, distributed database service).

Samuel Cochran