Amazon MSK Express Brokers adds support for Apache Kafka version 4.2
Amazon MSK Express Brokers now supports Apache Kafka version 4.2, enhancing reliability and performance with improved leader election, smoother consumer rebalances, and optimized task assignments for Kafka Streams
Amazon Managed Streaming for Apache Kafka (MSK) Express Brokers now supports Apache Kafka version 4.2. This release includes Eligible Leader Replicas (ELR) enhancements that improve availability with better leader election correctness. It also introduces a new consumer rebalance protocol that ensures smoother and faster group rebalances, and a new Streams Rebalance Protocol that extends broker coordination capabilities to Kafka Streams for optimized task assignments. MSK Express Brokers are designed to deliver up to three times more throughput per broker, scale up to 20 times faster, and reduce recovery time by 90 percent. To get started, select version 4.2.x when creating a new cluster with Express Brokers via the AWS Management Console, AWS CLI, or AWS SDKs. Existing MSK Express Brokers can also be upgraded with an in-place rolling update. Amazon MSK orchestrates broker restarts to maintain availability and protect your data during the upgrade. Kafka version 4.2 support is available today across all AWS regions where Amazon MSK Express Brokers is offered. For more information, see the Amazon MSK Developer Guide