7 RAILS HOW TO

Sprockets is now an optional dependency: Rails doesn’t depend on sprockets-rails anymore. Spring: If your application uses Spring, it needs to be upgraded to at least version 3.0.0, otherwise you’ll get undefined method 'mechanism=' for ActiveSupport::Dependencies:Module That we wrote about the Zeitwerk upgrade. If you had it set to :zeitwerk, just remove it. There is also no configuration point to set the autoloading mode, toloader= has been deleted. Zeitwerk: if your application still runs in classic mode you’ll need to switch to zeitwerk mode It is important to check through the official Rails GuidesĪnd follow any of the steps necessary for your application. Which provides an overview of the changes in a basic Rails app between 6.1.x andħ.0.x (or any other source/target versions). You can use this task as a guideline as explained thoroughly in In case you are the maintainer of the gem, you’ll need to make sure it supports Rails 7.0 and if it doesn’t, update it.Ī great tool to checkout gems compatibility is RailsBump Make sure you check the GitHub page of the gems you use for the project to find out its compatibility with Rails 7.0.

To see all the required Ruby versions across all Rails versions.

7 RAILS HOW TO

To learn more about dual booting with non-backwards compatible changes you can visit this articleįor full details check out our article on How to Prepare Your App for a Rails Upgrade.

Find out more about how and why to dual boot

Create a dual boot mechanism, the fastest way to do this is installing the handy gem next_rails.

Check your Gemfile.lock for incompatibilities by using RailsBump.

Follow a Git flow workflow to actively manage at least two environments: staging and production.

You should have at least 80% test coverage unless you have a dedicated QA team.

Your Rails app should have the latest patch versionīefore you move to the next major/minor version.

This article will cover the most important aspects that you need to know to getīefore beginning with the upgrade process, we have some recommended preparations: This article is part of our Upgrade Rails series.

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