Cloud SQL Managed Connection Pooling is now generally available (GA)

## Feature Cloud SQL Managed Connection Pooling is now generally available ([GA](https://cloud.google.com/products#product-launch-stages)). Managed Connection Pooling lets you scale your workloads by optimizing resource utilization for Cloud SQL instances using pooling. You can now also use [IAM authentication](https://cloud.google.com/sql/docs/postgres/iam-authentication) to secure connections when using Managed Connection Pooling. For more information, see [Managed Connection Pooling overview](https://cloud.google.com/sql/docs/postgres/managed-connection-pooling).