Amazon Managed Streaming for Apache Kafka (Amazon MSK) now supports Apache Kafka version 3.4.0 for new and existing clusters. Apache Kafka 3.4.0 includes several bug fixes and new features that improve performance. Key features include a fix to improve stability to fetch from the closest replica. Amazon MSK will continue to use and manage Zookeeper for quorum management in this release. For a complete list of improvements and bug fixes, see the Apache Kafka release notes for 3.4.0.
Source:: Amazon AWS