Amazon ElastiCache Serverless now supports IPv6 and dual stack connectivity

Amazon ElastiCache Serverless Updates

Amazon ElastiCache Serverless now supports IPv6 and dual stack connectivity, expanding beyond the IPv4 connectivity that was previously available. This gives you greater flexibility in how your applications connect to your Serverless caches.

When creating an ElastiCache Serverless cache, you can now choose from three network type options — IPv4, IPv6, or dual stack. With dual stack connectivity, your cache accepts connections over both IPv4 and IPv6 simultaneously, making it ideal for migrating to IPv6 gradually while maintaining backward compatibility with applications connecting over IPv4. IPv6 connectivity enables you to use IPv6-only subnets with your Serverless caches, eliminating the need for IPv4 addresses and helping you meet compliance requirements for IPv6 adoption.

IPv6 and dual stack connectivity for ElastiCache Serverless is available in all AWS Regions, including the AWS GovCloud (US) Regions and the China Regions, at no additional charge.

What to do

• Choose the appropriate network type when creating a new ElastiCache Serverless cache.
• Migrate to IPv6 gradually while maintaining backward compatibility with IPv4 applications.
• Use IPv6-only subnets to meet compliance requirements for IPv6 adoption.

Source: AWS release notes

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