It's possible to roll back a quick-install application to a previous version within 14 days of upgrading.
We email you once the rollback completes.
Note: If your application uses a database, rolling back results in the deletion of all data created since your upgrade. To avoid unintentional loss of data, please back up your database before proceeding. For more information, see Backing up and Restoring MySQL or MSSQL Databases.