Notifications were sent to customers with accounts and/or Enterprise teams that have previously provisioned free Heroku Dynos, Heroku Data for Redis, and Heroku Postgres.
For Enterprise users, starting November 28, 2022, free dynos will be automatically converted to eco dynos. Hobby-Dev databases that belong to an Enterprise Account or Team will be converted to Mini starting on this date. This conversion will result in your app restarting, and in the case of databases, a new release of your app. You can choose to upgrade your dynos and databases yourself at a time that's convenient for you, prior to November 28, 2022. Instructions can be found in our Dev Center for upgrading Heroku Postgres and Heroku Data for Redis. Learn more about our Eco and Mini plans here.
There will be no immediate change in cost to your Heroku Enterprise invoices if an app is upgraded from a free tier resource to a paid tier resource. Any changes to Heroku Enterprise pricing would require a contract update to take effect. If you have any concerns about your contract pricing, please contact your account executive.
Note that Hobby-Dev databases that belong to personal accounts will be deleted, even if that user also belongs to an Enterprise Team. Upgrade to paid plans to avoid data deletion. You can download your Heroku Postgres data if you need a backup.