RDS Data API now supports IPv6

[RDS Data API](https://aws.amazon.com/rds/aurora/features/#topic-8) now supports Internet Protocol Version 6 (IPv6), enabling dual-stack configuration (IPv4 and IPv6) connectivity for your Aurora databases. [IPv6](https://aws.amazon.com/vpc/ipv6/) enables an expanded address space, enabling you to scale your application on AWS beyond the typical constraints of the number of IPv4 addresses in your VPC. With IPv6, you can assign easy to manage contiguous IP ranges to micro-services and can get virtually unlimited scale for your applications. Moreover, with support for both IPv4 and IPv6, you can gradually transition applications from IPv4 to IPv6, enabling safer migration. IPv6 support is available in all [commercial AWS regions](https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/Concepts.Aurora%5FFea%5FRegions%5FDB-eng.Feature.Data%5FAPI.html) where RDS Data API is offered, except Canada (Central). To learn more about Data API and instructions on configuring your network to use IPv6 endpoints, see the [documentation](https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/data-api.ipv6.html). RDS Data API eliminates the use of drivers and improves application scalability by automatically pooling and sharing database connections rather than requiring you to manage connections. Data API also enables access to Aurora databases via AWS AppSync GraphQL APIs. See the [documentation](https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/data-api.html) to learn more about Data API.