How to use ruby 2.0.0 is a single rails app

Question

I originally had ruby 1.9.3 installed on my computer as the only ruby version. I would like to make an app for Heroku which requires ruby 2.0.0. I just successfully installed ruby-2.0.0-p353 onto my computer and would like to use that for a single app. How can I do this?

Answer 1

You can specify a Ruby version in your Gemfile by adding: ruby "2.0.0"

For more info: https://devcenter.heroku.com/articles/ruby-versions

Answer 2

If you use rvm or rbenv you can have default version 1.9.3, and for any project set version 2.0.0 in .ruby-version or Gemfile

See https://rvm.io/workflow/projects