Airflow 3.4.0

Issues

• Avoid loading timetables for dags in Execution API endpoints

  area:DAG-processingbackport-to-v3-4-test
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  apache/airflow#75765·ashb opened Oct 27, 2026 · Updated Oct 27, 2026
  6

• Load the serialized Dag in ti_run only for stub tasks

  area:APIarea:DAG-processingarea:db-migrationsarea:go-sdkarea:java-sdkarea:task-sdkarea:ts-sdkkind:documentation
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  apache/airflow#75795·jason810496 opened Oct 27, 2026 · Updated Oct 27, 2026
  8

  

• Fix dashboard Active Dags filtering

  area:UIbackport-to-v3-4-test
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  apache/airflow#75350·anzinmhd opened Oct 21, 2026 · Updated Oct 27, 2026

• Reject non-object JSON files when importing variables

  area:UIbackport-to-v3-4-test
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  apache/airflow#75384·himanshuchawla0807-gif opened Oct 22, 2026 · Updated Oct 27, 2026

• Preserve XCom value types when editing in the UI

  area:UIbackport-to-v3-4-test
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  apache/airflow#75496·anzinmhd opened Oct 23, 2026 · Updated Oct 27, 2026

• [v3-4-test] Load the serialized Dag in ti_run only for stub tasks (#75795)

  area:APIarea:DAG-processingarea:db-migrationsarea:go-sdkarea:java-sdkarea:task-sdkarea:ts-sdkkind:documentation
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  apache/airflow#75802·jason810496 opened Oct 27, 2026 · Updated Oct 27, 2026