- Fixed numerous crashes and execution issues (null dag run.conf, scheduler crashes, memory leak, task retry bugs) and improved error handling
- Added UI and API enhancements such as configurable Execution API timeout, extra columns on Task Instances page, English fallback locale, and expand/collapse functionality in XComs and DAGs
- Updated documentation, added translations, migrated to Pydantic v2 compatibility, and applied performance optimizations
Airflow 3.1.1
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Updated XCom handling for pandas 3, now storing the class name; all components must be upgraded or DataFrames from pandas 3 become unreadable.