My thoughts exactly. The heroku website doesn't seem to answer that question, but http://www.urlfan.com/local/heroku/68765816.html http://www.urlfan.com/local/h

My thoughts exactly. The heroku website doesn't seem to answer that question, but http://www.urlfan.com/local/heroku/68765816.html http://www.urlfan.com/local/heroku/68765816.html says: "Whenever you save a file, any updates are automatically deployed and appear on your website." Ideally, heroku would support revision control and have the ability to run multiple versions on different urls, at least testing and live.