Amazon Managed Streaming for Apache Kafka (Amazon MSK) now supports Apache Kafka version 3.3.1 for new and existing clusters. Apache Kafka 3.3.1 includes several bug fixes and new features that improve performance. Some of the key features include enhancements to metrics and partitioner. Amazon MSK will continue to use and manage Zookeeper for quorum management in this release for stability. For a complete list of improvements and bug fixes, see the Apache Kafka release notes for 3.3.1.