I have this model: https://www.amazon.com/gp/product/B075WRBK7Y/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1

Firmware says it is 4.10 whereas the latest version on the website says 4.02. These controllers were just released like a week ago which I assume is why they have a more recent version of the firmware.