Amazon ElastiCache for supports Redis 6.2. ElastiCache for Redis 6.2 includes performance improvements for TLS-enabled clusters using x86 node types with 8 vCPUs or more or Graviton2 node types with 4 vCPUs or more. These enhancements are designed to improve throughput and reduce client connection establishment time by offloading encryption to other CPUs. With Amazon ElastiCache for Redis 6.2, you can also manage access to Pub/Sub channels with Access Control List (ACL) rules. For the full list of improvements in Amazon ElastiCache for Redis 6.2 (enhanced), click here.
Source:: Amazon AWS