Heroku Dynos: After a while of notifying users, Heroku finally | The Caduceus

Heroku Dynos:
After a while of notifying users, Heroku finally ended their free services and scaled all free apps/databases to 0, while some containers are still working but will be disabled by tomorrow i.e. 1/12/22.

That means, if your app or database is scaled to 0 then you immediately need to upgrade your account to at least eco plan to stop the deletion.

Added to this, Heroku already disabled free deployments and an user now needs to add a valid 'payment method' to deploy their app.