Hi I understand that depth first execution was being worked on in the past, is it released yet? If not, is there a workaround I can do to have a depth first execution??

Hey Alvin, Depth-first execution with mapping is on our issue list and can be tracked here: https://github.com/PrefectHQ/prefect/issues/2041 I think one potential workaround that can be utilized in the meantime is a ‘flat-map’, which Jeremiah has discussed here. This may be useful depending on your use case.