- Introduces DeltaTriggerTimetable and a config option to opt‑in, enabling trigger‑based delta schedules and aligning timing metrics to milliseconds across backends.
- Removes Python 3.8 support, adds logical_date replacing execution_date, and provides config lint/update commands to aid migration to Airflow 3.0.
- Includes numerous bug fixes and documentation updates, such as XCom examples and executor config tweaks.
Airflow 2.11.0
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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.