BLHeli Flashing

Cham

New member
Hey i currently own a set of these: https://smile.amazon.com/gp/product/B00MFK99X2/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1 61ufPde1w9L._SL1010_.jpg
and was wondering which revision/version of the latest BLHeli firmware i can flash onto them. As they are a generic ESC, i would like to know what firmware is compatible with them.

Thank you in advance!