March 2026 (2026-03) — Ray project (ray-project/ray) focused on Unity Catalog credential handling improvements to strengthen reliability and maintainability. Delivered a targeted refactor that centralizes credential resolution in dedicated functions and moves branching logic into the credentials module. This work lays the groundwork for faster, safer feature delivery across Unity Catalog and Databricks Table paths, with stronger test coverage and reduced risk in credential flows.

January 2026 performance summary for pinterest/ray: Delivered a robust Databricks credential management abstraction and related data access enhancements that improve security, flexibility, and reliability while preserving backward compatibility. The work introduced a credential provider pattern with a base class and implementations, integrated a credential_provider switch into the Databricks UC data source and read_databricks_tables, and added UnityCatalogConnector for direct Unity Catalog access across Delta/Parquet formats on AWS, Azure, and GCP. Centralized common credential logic and added resilience against credential expiry with a 401 retry flow. Tests were reorganized to improve maintainability. These changes reduce operational risk, enable dynamic credential sources, and lay groundwork for future credential providers.