October 2025 monthly summary for the Doris project focused on reliability, performance, and correctness across multi-AZ deployments and schema evolution. Delivered three key changes: (1) routing fix for multi-AZ deployments to correctly map virtual compute groups to physical compute groups by having CloudReplica consult a system info service, with regression tests updated to cover default instance IDs; (2) data compaction performance optimization for empty rowsets by prioritizing consecutive empty rowsets when criteria are met, improving overall compaction efficiency; (3) correction of unique IDs for rollup tables during schema changes to ensure modified columns receive unique IDs rather than reusing base table IDs, with regression tests updated to cover replication number properties and a preceding sleep before selects. The work included regression tests, CI validation, and collaboration with CloudReplica and system info service components to ensure end-to-end reliability across deployments.

September 2025 monthly summary focusing on delivering efficiency, stability, and clear documentation across Doris repos. Key work targeted core compaction and caching reliability, complemented by user-facing documentation to accelerate adoption and reduce operational effort.

In August 2025, delivered two high-impact capabilities across Doris projects, focused on data protection, documentation clarity, and maintainability. Across apache/doris-website, added comprehensive documentation for time_series_max_tablet_version_num to explain its role in limiting versions per tablet under the time-series compaction policy, with updates across versions and languages. Across apache/doris, introduced table-level Transparent Data Encryption (TDE) support, including configurable encryption algorithms and propagation of settings to tablet creation, rowset metadata, and WAL, with refactoring of TDE metadata handling via new protobufs and updated schemas for improved efficiency and maintainability. No explicit major bugs were logged for this period; however, the changes enhance security, governance, and developer experience by providing clearer docs and a more robust encryption framework.