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Although this article [1] compares Airflow to Prefect it outlines pretty interestingly limitations of Airflow.

I would be also curious to hear more about alternative and mature open-source solutions to Airflow.

[1] https://medium.com/the-prefect-blog/why-not-airflow-4cfa4232...

I would recommend you check out Airflow 2.0. It's a pretty major rebuild in a whole lot of ways (new UI, new DAG API, up to TEN TIMES faster task execution, multiple schedulers at once). I've actually had friends prepared to pick Prefect over Airflow until they tried 2.0. We put a lot of work into it, including extensive QA time to ensure that it runs reliably.

Disclosure: I'm on the Airflow PMC.

Thanks for your work on airflow. 2.0 is exciting and we are looking forward to it. Love airflow 1 though too, it has helped us a ton.

Is there a list of backward incompatible changes?

Also, how would you describe the overall health of the code base with all of these new features added?

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