March 2026: Delivered targeted performance, reliability, and data-access improvements in apache/incubator-gluten, driven by enhancements to BHJ, Spark compatibility, and columnar execution. The work strengthens Velox-backed queries, improves throughput and stability for large-scale joins, and enables efficient data retrieval with optional limits.

February 2026 (IBM/velox): Delivered two high-impact features that advance performance and cloud integration, with no separate bug fixes documented in this period. Key features delivered include: 1) Hash Join Performance Optimization with Reusable Hash Table, enabling HashJoinNode/HashBuild to reuse a pre-built hash table and correctly handle null keys, reducing rebuild overhead for large joins. Commit: 27fefedbcbbf1cc9589951b9e12664ac207e06e6. 2) AWS IMDS Support in S3 Configuration, adding an IMDS-enabled option to the S3 config to improve metadata access for EC2-based applications. Commit: 2b5cd1fb7f3f10bc178d19952d4e9164ba778e3c. Overall, these changes improve analytical throughput and cloud readiness. Notes: No explicit standalone bug fixes were documented for this month in the provided data.