During March 2026, this developer contributed to the apache/amoro and StarRocks/starrocks repositories by delivering four features and resolving three bugs focused on data engineering and backend optimization. They enhanced observability in Java-based systems by implementing configurable Prometheus metrics filtering and improved AMS recovery robustness through refactored concurrency management and defensive handling of PENDING tables. Their work addressed partition mapping correctness after PartitionSpec evolution and expanded Flink version compatibility, streamlining future upgrades. In StarRocks/starrocks, they optimized Iceberg data processing by refining average row size estimation with column-level statistics and improved incremental refresh accuracy by skipping irrelevant REPLACE snapshots.