You can now configure customer-managed CA (CUSTOMER_MANAGED_CAS_CA) as the server certificate authority (CA) mode when you create a Cloud SQL instance

## Feature You can now configure customer-managed CA (`CUSTOMER_MANAGED_CAS_CA`) as the server certificate authority (CA) mode when you create a Cloud SQL instance. With customer-managed CA mode, you set up your own CA pool and CA in [Certificate Authority Service](https://cloud.google.com/certificate-authority-service/docs/ca-service-overview). This option lets you establish your own CA hierarchy and manage the rotation of CA certificates for your Cloud SQL instances to help you meet your regulatory compliance needs. To use the customer-managed CA option in Cloud SQL, see [Use a customer-managed certificate authority (CA)](https://cloud.google.com/sql/docs/sqlserver/customer-managed-ca). For more information about server CA mode options, see [Certificate authority (CA) hierarchies](https://cloud.google.com/sql/docs/sqlserver/authorize-ssl#ca-hierarchies). The customer-managed CA feature is in [Preview](https://cloud.google.com/products#product-launch-stages).