Upgrade Rails From 8.0 to 8.1 - FastRuby.io | Rails Upgrade Service

How to upgrade Ruby on Rails from 8.0 to 8.1, including the deprecations, required configurations, application code changes, and webpacker API changes.Before beginning with the upgrade process, we have some recommended preparations: Your Rails app should have the latest patch version opens a new window before you move to the next major/minor version. You should have at least 80% test coverage. We do have an article for strategies on upgrading with low test coverage opens a new window as well. Have a staging environment that is as similar as possible to production, so that proper QA can be completed. Check your Gemfile.lock for incompatibilities by using RailsBump opens a new window. Create a dual boot mechanism, the fastest way to do this is installing the handy gem next_rails opens a new window. Find out more about how and why to dual boot opens a new window. To learn more about dual booting with non-backwards compatible changes you can refer to our Solving Dual Booting Issues when Changes aren’t Backwards Compatible opens a new window article.