Engine versions and upgrading in ElastiCache

This section covers the supported Valkey, Memcached, and Redis OSS engines and how to upgrade. Note that all features available with Redis OSS 7.2 are available in Valkey 7.2 and above by default. You can also upgrade from some existing ElastiCache for Redis OSS engines to a Valkey engine.

Topics

• Version Management for ElastiCache

• How to upgrade engine versions

• How to trigger cross-engine upgrade from Redis OSS to Valkey

• Supported engines and versions

• Major engine version behavior and compatibility differences with Valkey

• Major engine version behavior and compatibility differences with Redis OSS

• Resolving blocked Valkey or Redis OSS engine upgrades