As part of our Rails upgrade business we get to evaluate a lot of codebases every month. We usually need a quick way to assess the quality of the code we get. For this we like to use CodeClimate and SimpleCov.

CodeClimate is free for open source projects and paid for private projects. I know that not everybody can pay for their service, so I thought it was a good idea to share some free, open source alternatives.

Here is a list of 3 tools that can help you assess the quality of your next codebase.

An outdated Rails application doesn't happen overnight. In FastRuby.io we work with a lot of clients who have outdated Rails applications and we help them upgrade to a newer Rails version. In this article I share some things that you could start doing to avoid falling out of date.

I recently wrote a spec for metric_fu which accidentally introduced a non-deterministic spec (a flaky spec!). I had no idea why it was randomly failing. This is an article to explain the process I followed to debug this issue.

In this blog post I will introduce bundler-leak -- A bundler plugin to find known memory leaks in your dependencies.

Every time we start a new Rails upgrade project, we need to setup a whole new environment in our local machines. Sometimes that leads us down the rabbit hole which ends up breaking our environment for other client projects.

After years upgrading Rails applications, we learned that the best way to isolate our client projects' environments is using Docker.

That's why we decided to use Docker and docker-compose for all of our client projects. This year I had the opportunity to share our process in a series of workshops: Upgrade Rails 101: The Roadmap to Smooth Upgrades

Here we continue with the series of articles where we talk about how minor adjustments in the code can lead to major performance improvements.

In this article we'll focus on the use of ActiveRecord::Batches#find_each when it comes to iterations across a large number of records.

This year's RailsConf was a special conference for me. It was my third time attending and my first time speaking at the conference. I conducted a 2-hour workshop for anyone interested in upgrading their Rails application: Upgrade Rails 101: The Roadmap to Smooth Upgrades

Here are a few lessons learned from running such an ambitious workshop.

Over the years we have seen a significant increase in the demand for Ruby on Rails upgrades. That's why a few years ago we decided to launch FastRuby.io, our Ruby on Rails upgrade service.

When we receive an inquiry via FastRuby.io, the first thing we like to do is schedule a call with the potential client to get more details about their app.

This article is part of our Upgrade Rails series. To see more of them, click here.

This article will cover the most important aspects that you need to know to get your Ruby on Rails application from version 5.2 to 6.0.

This is a short post to show the compatibility between Ruby on Rails and Ruby across different versions. In the process of upgrading really old applications to more modern versions of Ruby and Rails we have ran into a lot of these combinations.

Next week the Rails community is having the biggest event of the year, the Rails Conf 2019. We participated in previous editions of this conference but this time we have the honor to be on the speakers side of it. We'll be teaching you what we're best at: Rails Upgrades.

RailsConf 2019 is right around the corner. That means Rails 6.0 is right around the corner! Rails 6.0's beta has been available since January 18, 2019. Rails 6.0.0.rc1 was released today! 🎉

In this article I will explain how you can dual boot your application in your local environment and your CI server. I hope that this will help you get ready for the next stable release of Rails.

I had to come up with a clever title because this article is about legacy Rails applications and I know that you might fall asleep by the third paragraph. Boooooring... You probably want to read about that new JavaScript framework that came out (I love that this sentence will always be true, it doesn't matter when you read this)

If you have been working with Rails for a few years, you have seen your fair share of shiny new applications, well-maintained and poorly-maintained legacy applications. This post is about Legacy Rails applications

Some time ago we wrote a couple of Tips for Writing Fast Rails. It was about time we wrote part two so here it is!

We recently spoke with Ryan Findley, Principal at Neomind Labs. We worked with his team to execute a Rails upgrade from 2.3 to 4.2 on one of their applications.