For non-Enterprise customers, free instances of Heroku Postgres and/or Heroku Data for Redis will be deleted and not automatically upgraded to a paid plan.
Hobby-Dev databases that belong to an Enterprise Account or Team will be converted to Mini starting on November 28, 2022. Hobby-Dev databases that belong to personal accounts will be deleted, even if that user also belongs to an Enterprise Team. These users must upgrade to paid plans to avoid data deletion.
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, contact your account executive.
Learn more about our Eco and Mini plans here.