- Numerous bug fixes across XCom API, scheduler, webserver, DB migrations, and task handling improve overall stability
- Added authentication to the experimental lineage endpoint, introduced Python daemon limits for Python 3.8+, and set default Celery worker concurrency to 16
- Extensive documentation updates: migration guides, provider docs, sensor docs, and removal of unused dependencies
Airflow 2.0.1, 2021-02-08
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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.