What is a TaskGroup in Airflow?

TaskGroups are a UI grouping mechanism for tasks introduced in Airflow 2.0. They collapse a set of related tasks into a single expandable node in the Graph view, making complex DAGs easier to read. Unlike SubDAGs, TaskGroups don't create a separate DAG object — they are purely visual.

from airflow.utils.task_group import TaskGroup

with DAG('etl_dag', ...) as dag:
    with TaskGroup('extract_group') as extract:
        t1 = BashOperator(task_id='extract_a', bash_command='...')
        t2 = BashOperator(task_id='extract_b', bash_command='...')
    load = BashOperator(task_id='load', bash_command='...')
    extract >> load

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