- Reverted a DAG stale‑marking fix and added a missing OpenTelemetry span while correcting scheduled‑slots documentation.
- Fixed several UI and logic bugs including DAG change confirmation, XCom rendering, task instance links, multi‑line Params input, log URL detection, and added a timeout exception type.
- Updated documentation (security model, XCom dataclasses/attrs, markdown in DAGs) and deprecated the `tree` flag for the tasks‑list CLI command.
Apache Airflow 2.10.2
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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.