Dynatrace Managed release version 1.226 introduced several updates and enhancements, focusing on system user configuration, ServiceNow integration, and operating system support. Users can update the system user on a Dynatrace Managed node using a script, and they should note changes in ServiceNow integration, as support for the Dynatrace Service Graph Connector will end by December 31, 2021. Significant operating system support changes include the termination of support for various Linux distributions starting February 2022, with further changes planned through 2026. The release resolved numerous issues and improved features such as performance in log monitoring, case sensitivity in custom attributes, and dashboard API functionality. Cumulative updates addressed vulnerabilities, including those related to the Log4j library, by applying recommended mitigation measures and updating the library to a more secure version.