We are pleased to announce that Amazon RDS for MySQL now supports “Promote Read Replica” functionality. You can now convert a MySQL Read Replica into a “standalone” DB Instance using the “Promote Read Replica” option. This option stops replication and converts the Read Replica in its existing state into a “standalone” DB Instance.
You can use this option for a number of use cases including:
Please refer to the Read Replicas section of the User Guide to learn more.