Heroku-16 stack is now available in beta

Change effective on 06 March 2017

Heroku-16, our stack based on Ubuntu 16, is now available in beta. If your organization uses review apps, we recommend testing Heroku-16 by defining your stack in app.json:

{
   "stack": "heroku-16"
}

You can then upgrade your app by running:

$ heroku stack:set heroku-16

To learn more about testing and upgrading your app, check out the documentation.