Additional Resources Home Elements Products Pricing Careers Help Status Events Podcasts Compliance Center Heroku Blog Heroku Blog Find out what's new with Heroku on our blog. Visit Blog Last updated October 09, 2025 Heroku supports Rack and Rack-based web frameworks like Sinatra, Ramaze, and Camping. To run a Rack-based app, include a Gemfile, as well as a rackup file named config.ru in the app’s

