Hi @Ju Lee! Great question - the blog post still stands in its entirety. The major version bump to 2.0 seems to be marketing as far as I can tell, as the actual feature list is focused on minor performance improvements / deployment improvements (check out the details here: https://cwiki.apache.org/confluence/display/AIRFLOW/Airflow+2.0+-+Planning). I think they could have released this as 1.11 without anyone blinking an eye. Of particular note, one of the “feature” releases is actually the Prefect task decorator API! The implementation still uses XComs under the hood though, so it’s only window dressing.