From Fedora Project Wiki

Ruby on Rails 5.2


Ruby on Rails 5.2 is the latest version of well known web framework written in Ruby.


Current status

Detailed Description

The Ruby on Rails stack is evolving quickly and Fedora needs to keep pace with it. Therefore the whole Ruby on Rails stack should be updated from 5.1 in Fedora 28 to 5.2 (latest version) in Fedora 29. This will ensure that all the Ruby developers using Fedora have the latest and greatest RPM-packaged Ruby on Rails.

Benefit to Fedora

This update will keep Fedora up-to-date and will ensure that the current Ruby on Rails developers stay with us as they will get support for system-packaged Ruby on Rails of the latest version. Apart from that, update to Rails 5.2 will bring new Active Storage framework, Redis Cache Store, HTTP/2 Early Hints, CSP support, opened credentials API. In addition update to Rails 5.2 contains hundreds of other fixes and improvements across all the frameworks.


  • Proposal owners:
    • The whole Rails stack has to be updated
    • Some dependencies of the Rails stack will need update

Packages need to be created/updated

Package name Task Status
rubygem-activestorage Update to 5.2.x
Pass pass pvalena
rubygem-actioncable Update to 5.2.x
Pass pass pvalena
rubygem-actionmailer Update to 5.2.x
Pass pass pvalena
rubygem-actionpack Update to 5.2.x
Pass pass pvalena
rubygem-actionview Update to 5.2.x
Pass pass pvalena
rubygem-activejob Update to 5.2.x
Pass pass pvalena
rubygem-activemodel Update to 5.2.x
Pass pass pvalena
rubygem-activerecord Update to 5.2.x
Pass pass pvalena
rubygem-activesupport Update to 5.2.x
Pass pass pvalena
rubygem-rails Update to 5.2.x
Pass pass pvalena
rubygem-railties Update to 5.2.x
Pass pass pvalena
rubygem-arel Update to 9.0.x
Pass pass pvalena
rubygem-redis Update to 4.0.x
Pass pass pvalena
  • Other developers: Update Rails dependent packages to be working with Ruby on Rails 5.2
  • Release engineering: #7410
  • Policies and guidelines: Not needed
  • Trademark approval: Not needed

Upgrade/compatibility impact

Web applications build above Ruby on Rails framework might need to be updated. Official upstream upgrade guide might come handy:

How To Test

  • No special hardware is needed.

To test Rails 5.2 from upstream

gem install rails -v 5.2.x
rails new app
cd app && rails s

To test only Rails itself

dnf install rubygem-rails
rails new app
cd app && rails s

To test the complete feature including generating a new Rails app using RPM

dnf group install 'Ruby on Rails'
rails new app --skip-bundle && cd app
rails s

User Experience

  • New version of Ruby on Rails (5.2) available
  • The most significant Rails 5.2 features:
    • Active Storage
    • Redis Cache Store
    • HTTP/2 Early Hints
    • Credentials
    • Content Security Policy


  • There are several packages, which depends on Ruby on Rails framework. All need to be tested an updated:
  • These needs to be surely updated:
    • (none)
  • Following gems don't support Rails 5.2 right now and would be broken by the update:
    • (none)
  • As Rails requires Ruby >= 2.2.2, the platform less than the version can not use Rails 5.2.

Contingency Plan

  • Contingency mechanism: None needed. Rails stack won't be updated until all its dependencies are in Rawhide. After that, it will be a simple matter of updating the core packages (and their dependencies).
  • Contingency deadline: N/A
  • Blocks release? No
  • Blocks product? No


Release Notes