Worked on the opensearch-project/security repository to address a critical bug affecting configuration updates in mixed clusters that relied on deprecated configuration types. Focused on backend development and configuration management using Java and Markdown, the work involved enhancing the CType.fromStringValues method to log warnings for unknown configuration types and filter them out, thereby preventing update failures. Additionally, a test asserting successful updates with unknown configuration types was removed to align with the new, safer behavior. These changes improved the reliability of configuration updates across mixed environments, reducing the risk of outages and minimizing operational challenges during cluster deployments and maintenance.