Yunye Zhang focused on enhancing the reliability and data integrity of audit logging in the apache/ranger repository. During the month, Yunye addressed a bug affecting UTC timestamp formatting for audit events sent to Elasticsearch, ensuring that evtTime values remained consistent throughout the logging pipeline. By normalizing timestamps to UTC, Yunye improved the accuracy of compliance reporting and streamlined downstream analytics. The solution was implemented in Java, leveraging backend development skills and Elasticsearch integration. This work demonstrated a careful approach to maintaining audit trail reliability, addressing a nuanced issue that impacts monitoring, compliance, and the overall trustworthiness of logged security events.