Worked on preparing the Behavioral Analytics API within the elastic/elasticsearch repository for version 10 by implementing UpdateForV10 annotations across relevant Java classes. This approach marked deprecated elements and ensured that the API maintained forward compatibility, reducing the risk of breaking changes for users upgrading to v10. Focused on backend development and API versioning, the work emphasized maintainability and commit-level traceability, allowing for a smoother transition during major version upgrades. No major bugs were addressed during this period, with efforts concentrated on proactive API maintenance using Java and established backend development practices to support long-term stability and customer upgrade paths.