rails:upgrade

Upgrade Ruby on Rails applications one minor version at a time.

1|Updated Apr 2, 2026
One-click install
npx skills add https://github.com/fabn/claude-plugins --skill rails-upgrade-fabn
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: rails:upgrade
Source: https://github.com/fabn/claude-plugins/tree/main/plugins/rails/skills/upgrade
Command: npx skills add https://github.com/fabn/claude-plugins --skill rails-upgrade-fabn

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

Upgrading Rails applications often leads to compatibility issues, deprecation warnings, and broken tests, but this Skill streamlines the process to ensure a smooth transition without major disruptions.

Core Features & Use Cases

  • Incremental Version Bumps: Updates gems, configs, and code one minor version at a time, following official guides.
  • Deprecation and Test Fixes: Automatically detects and resolves warnings while running and verifying tests.
  • Framework Defaults Management: Enables new defaults progressively with user confirmation for safe adoption.
  • Use Case: For a legacy Rails 7.1 app, use this to upgrade to 7.2 by updating the Gemfile, handling config conflicts, fixing deprecations, and confirming tests pass before deployment.

Quick Start

Upgrade my Rails application from version 7.1 to the next minor version following best practices.

Frequently Asked Questions about rails:upgrade

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I upgrade my Ruby on Rails application to the next minor version?

To upgrade Rails, bump the gem version in your Gemfile one minor version at a time, merge configuration updates, resolve deprecation warnings, and run tests to validate the application before committing changes.

What is the best way to handle framework defaults when updating Rails?

Handling framework defaults during a Rails update involves enabling new configurations progressively, requiring user confirmations to safely adopt breaking changes and verify that tests still pass before final deployment.

How do I resolve deprecation warnings and broken tests during a Rails version bump?

Resolving deprecation warnings and broken tests during a Rails version bump requires running the test suite to detect failures, applying necessary code fixes, and validating results through rails tasks before committing.

Can I jump straight from Rails 7.1 to the latest major version in one step?

Rails upgrades should be performed one minor version at a time to safely manage breaking changes, configuration conflicts, and deprecation warnings, ensuring tests pass at each incremental step before proceeding.

Do I need to manually update the Gemfile to start a Rails upgrade?

Starting a Rails upgrade requires updating the Gemfile to bump the framework version, followed by bundle management to install dependencies, merge configurations, and run rails tasks for validating tests.

Why does my Rails upgrade process require user confirmations?

The Rails upgrade process requires user confirmations to safely enable new framework defaults and handle breaking changes, ensuring you explicitly approve configuration updates that might affect application behavior.