- Fixed multiple bugs including FixedTimezone serialization, scheduler heartrate usage, task instance list linking, log task handler permissions, ObjectStoragePath hash caching, and added grid padding to prevent scroll overlap.
- Adjusted dependency constraints: limited importlib resources, capped pandas to <2.2, and upgraded croniter to resolve February 29 cron expression issues.
- Enhanced documentation with scanner issue guidance, Docker Compose debugging tips for PyCharm, and clarified deferrable operator kwargs handling.
Apache Airflow 2.8.4
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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.