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Upgrading to Rails 5.0, the newest Ruby on Rails version.
How to update Rails versions and upgrade Rails applications. This article shows how to add a new version of Rails while keeping an old version.
You need to be using Ruby 2.3.0 or higher, and you need to have Ruby Gems 2.5.0 or higher.
You can check your Ruby version by running and Ruby Gems will install the latest version of Bundler.
When you create a new application, using , or something like that, your application will use the newest version of Bundler that is currently installed.
If you have Bundler 2 installed, your application will be locked to Bundler 2.
If you don’t update Rails, you leave your application and its server open to attack.
Here’s advice on timing: If you wait too long to upgrade, the community moves on and you’ll find it difficult get help with any issues.
Developers often install the newest version of Rails but neglect other components needed for Rails to run successfully. The Rails Apps project provides example applications that developers use as starter apps.Upgrade your Rails applications whenever a new version of Rails is released.