May 2026 monthly summary for delta-rs development focused on expanding timestamp precision and improving test reliability. Key features delivered include nanosecond timestamp support in the Python extension and Delta Lake with a runtime enable/disable flag and backward compatibility. Also addressed test reliability by reverting a flaky pytest behavior to ensure full CI test execution. These efforts improved data precision, stability, and business impact for Delta Lake workloads.

April 2026 focused on delivering precise, interoperable timestamp capabilities across the Delta ecosystem, with a strong emphasis on business-value outcomes: higher data fidelity for time-series workloads, cross-component compatibility, and robust test coverage. The work enables nanosecond timestamps and non-timezone NTZ timestamps via protocol RFC, standardized ISO8601 formatting, and reliable behavior across delta-rs, Delta DataFusion, and protocol layers.

June 2025 monthly summary for langchain-ai/delta-rs: focused on improving Python API discoverability for DeltaTable by documenting create_checkpoint. Delivered targeted documentation enhancement and ensured visibility in Python API docs. No major bugs fixed this month. Business impact includes smoother onboarding for users building checkpoints and improved developer efficiency through clearer API guidance.