March 2026 (2026-03) highlights delivering a smarter semantic token classification for attribute access on union types in astral-sh/ruff. The change refines how the analyzer resolves methods and properties across union variants, backed by targeted unit tests and code reviews, to improve the accuracy of editor feedback and static analysis in real-world Python codebases. This work reduces misclassifications and supports more reliable code intelligence for users working with complex unions.

February 2025 monthly summary for python/mypy: Focused on improving documentation quality for metaclass Self usage, reducing ambiguity and aligning examples with Python's typing guidance and PEP references. Delivered a targeted docs fix to ensure correct usage and prevent misapplication in user code.