AWS MSK will patch the underlying operating system of brokers in our MSK cluster(s) with the latest OS updates between Friday, April 19, 2024, 14:00:00 CEST and Friday, April 19, 2024, 20:00:00 CEST. MSK patches brokers to address security vulnerabilities and to update software supporting the brokers. To ensure client I/O continuity during the update that is performed as part of the patching process, we recommend limited trading activity.