You can now use cascading read replicas in Azure Database for PostgreSQL flexible server, available in Public Preview. With this new capability, you can create additional read replicas from an existing one. A read replica can act as the source for new replicas, helping you scale read workloads more efficiently across regions. You can create up to 5 read replicas per source, with support for up to 2 levels of replication. This feature is currently supported in the following Azure regions: West US, Spain Central, Australia East, South Central US, UK West, Poland Central, Italy North, West US 2, East US.