Amazon EMR Serverless now supports live configuration updates without application restarts

Amazon EMR Serverless now supports updates to key application configurations such as maximum capacity, and custom image settings — without stopping and restarting the application. New workloads submitted after the update automatically use the new settings, while existing workloads continue uninterrupted with their original configuration. Previously, modifying these settings required stopping your EMR Serverless application, making the change, and restarting it — forcing you to coordinate maintenance windows and temporarily block job submissions.