Dynatrace Managed release version 1.256, initiated on December 12, 2022, introduces several changes and improvements, particularly regarding cluster resilience and operating system support. Notable updates include the discontinuation of support for Suse LES 12.3 and Debian 9 for new cluster nodes, with future support changes planned for Red Hat Enterprise Linux and Amazon Linux. Enhancements focus on preventing data loss by disabling OneAgent traffic on undersized disks and updating data replication for Premium High Availability deployments. The release also fixes numerous issues across application security, cluster management, and cluster management console components, addressing problems like broken security problem handling, missing mobile key user actions, and improved cluster metrics performance. Additionally, support for Red Hat Enterprise Linux versions 8.7 and 9.1 has been added, while previous release updates have resolved various other issues, including enhancements in monitoring, log display formatting, and management zone assignments.