Heroku allows users to run Ruby 2.0 on their platform. Users can specify Ruby 2.0 as the runtime in their Gemfile or use a custom buildpack. Heroku has already provided a sandbox for evaluating Ruby 2.0. The document demonstrates how to create a Ruby 2.0 app on Heroku by specifying the Ruby version and dependencies in the Gemfile, committing, and pushing to Heroku. Users are encouraged to try Ruby
