Updating gem os x
You can verify this by reading the lockfile, looking for the section named .
Many Ruby developers have more than one application on their machines.
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.
Bundler 2 is almost entirely the same as the previous version, 1.17.
If you want to try out Bundler 2 for yourself, this guide will help you do that.
If you have Bundler 2 installed, your application will be locked to Bundler 2.It is important to set up your development environment with the most current version of all the gems that are needed for development.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.The big change is that Bundler now requires at least Ruby 2.3.0 and Ruby Gems 2.5.0.
Before you upgrade to Bundler 2, make sure you have the right Ruby and Ruby Gems.Rails is revised frequently and you’ll likely need more than one version.