Amazon SNS now supports Internet Protocol Version 6 (IPv6)

Amazon SNS now supports Internet Protocol version 6 (IPv6) for API requests enabling you to communicate with Amazon SNS using Internet Protocol Version 6 (IPv6), Internet Protocol Version 4 (IPv4), or dual stack clients using public endpoints. Amazon SNS is a fully managed messaging service that enables publish/subscribe messaging between distributed systems, microservices, and event-driven serverless applications. The addition of IPv6 support provides customers with a vastly expanded address space, eliminating concerns about address exhaustion and simplifying network architecture for IPv6-native applications. With simultaneous support for both IPv4 and IPv6 clients on SNS public endpoints, customers can gradually transition from IPv4 to IPv6-based systems and applications without needing to switch all systems at once. This enhancement is particularly valuable for modern cloud-native applications and organizations transitioning to IPv6 as part of their modernization efforts. To learn more on best practices for configuring IPv6 in your environment, visit the whitepaper on [IPv6](https://docs.aws.amazon.com/whitepapers/latest/ipv6-on-aws/internet-protocol-version-6.html) in AWS. This feature is now available in all AWS commercial Regions, including AWS China Regions, and can be used at no additional cost. See [here](https://docs.aws.amazon.com/general/latest/gr/sns.html) for a full listing of our Regions. To learn more about Amazon SNS, please refer to our [Developer Guide](https://docs.aws.amazon.com/sns/latest/dg/welcome.html).