Previously limited to IPv4, ElastiCache Serverless now supports selecting IPv4, IPv6, or both simultaneously for cache network access. Dual stack enables gradual migration to IPv6 without breaking IPv4-dependent applications, while IPv6-only support helps meet compliance mandates.
This update is available across all AWS Regions, including GovCloud and China, at no additional charge. It offers customers more flexibility in caching infrastructure network configuration, facilitating modern network protocol adoption.
Source & further reading
Amazon ElastiCache Serverless now supports IPv6 and dual stack connectivity ↗Source published 2026-04-02. This report was prepared with AI assistance from the linked primary-source material. Claims and limitations should be checked against the original announcement or research.