Update the Heroku stack

AAPS users: mind the compatibility matrix!

It is good practice to maintain your Heroku stack up to date. Either when you receive an email from Heroku or when you update your Nightscout site (which is also a good habit).

  • Select your app

  • Click Settings

  • If present select Upgrade Stack

  • Confirm the upgrade

  • Now you need to deploy to upgrade the stack

  • Click on Deploy

  • Scroll down to the bottom of the page, select the master branch and click Deploy Branch


If you can’t select the master branch or Deploy Branch doesn’t do anything reconnect GitHub.

  • Build will start and information will scroll in the log window. Do not leave the page, do not interfere and wait for completion. It might take more than 10 minutes. Interrupting the process will lead to a broken site and you’ll need to restart deployment.

  • Wait until the deploy process completes and click View (if nothing happens click Manage App then upper right Open App)


You have upgraded your Heroku stack.