When a release is created, it may take a while for all dynos to be running the new version. This is especially true for applications in Heroku Private Spaces or using the common runtime preboot feature, where dynos cycle in gradually when a new release is deployed. This command allows you to wait until all dynos are on the latest release version.

heroku ps:wait --app sushi

This can be especially useful combined with desktop notifications. E.g., on Ubuntu, you can use notify-send:

heroku ps:wait --app sushi && notify-send 'sushi release is live'

$ heroku plugins:install heroku-ps-wait

$ heroku plugins:update heroku-ps-wait

Thanks for trying it out. If you find any problems, please report an issue and include your Heroku toolbelt version and your OS version.