Amazon Managed Streaming for Apache Kafka (Amazon MSK) now supports Apache Kafka version 2.8.0 for new and existing clusters. Apache Kafka 2.8.0 includes several bug fixes and new features that improve performance. Some of the key features include connection rate limiting to avoid problems with misconfigured clients (KIP-612) and topic identifiers which provides performance benefits (KIP-516). There is also an early access feature to replace zookeeper with a self-managed metadata quorum (KIP-500), however this is not recommended for use in production. For a complete list of improvements and bug fixes, see the Apache Kafka release notes for 2.8.0.
Source:: Amazon AWS