- Adds modern React UI with Calendar/Gantt views, enhanced filtering, drag‑and‑drop log grouping, RTL support, and a new plugin/iframe extension system.
- Introduces full Human‑in‑the‑Loop (HITL) operator suite, UI, API and deadline alert system for proactive DAG monitoring.
- Updates runtime to Python 3.13, adds SQLAlchemy 2.0 compatibility, psycopg3 driver support, and includes numerous bug fixes across XCom, DAG run handling, and UI components.
Airflow 3.1.0
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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.