Migration Best Practices for Apache Airflow 3.x on Amazon MWAA: A Comprehensive Guide
ByAinvest
Tuesday, Oct 7, 2025 1:33 pm ET1min read
AMZN--
Apache Airflow 3.x on Amazon MWAA introduces architectural improvements, a redesigned UI, scheduler-based backfills, and support for Python 3.12. However, upgrading from Airflow 2 requires careful planning and execution due to breaking changes, including removal of direct metadata database access from workers, deprecation of SubDAGs, changes to default scheduling behavior, and library dependency updates. Organizations must understand these changes and refactor existing DAGs and custom operators to ensure a smooth transition and maximize the enhanced capabilities of Airflow 3.
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