January 2026: Focused on stabilizing PyIceberg integration with Hive Metastore (HMS). Delivered a bug fix that preserves HMS-specific table properties during PyIceberg commits by merging properties instead of replacing, and added a regression test to ensure external systems' configurations are maintained. This enhances reliability for data pipelines and external integrations while preserving API stability.

June 2025 summary for apache/gravitino: focused bug fix to stabilize GCS data access in Dockerized deployments. Delivered a targeted fix for Hadoop fileio UnsupportedFileSystemException by introducing the GCS connector JAR into lakehouse-iceberg and iceberg-rest-server components within the Docker build, enabling reliable reads from GCS data and smoother data ingestion workflows. This work reduces runtime errors in production and supports the data lakehouse strategy.

March 2025: Delivered Spark 3.5 compatibility improvements for Apache Iceberg by enhancing AddFilesProcedure to infer partition specs from source FileTables (instead of the target table's latest spec) and by adding tests to cover evolved partition specs and invalid partition filters. Implemented unit tests to validate robustness when partition filters reference invalid columns. In addition to feature delivery, the work strengthens the Iceberg add-files workflow, reduces user surprises, and improves correctness with evolving schemas. No major bugs fixed this month; the focus was on delivering a solid feature and expanding test coverage to mitigate future regressions.