[UPDATED] iPhone WiFi Presence Sensor

So, I was planning on waiting to update the firmware until the Xiaomi drivers are updated (there are other threads on that topic).

My question now is, will this new change for the latest firmware still work with the old firmware? Or, should I wait to update all of the Hubitat firmware, the Xiaomi driver and the iPhone WiFi Presence driver all at the same time? (asked anothwer way .... if I install this iPhone WiFi Presence Driver update on the prior firmware and will it still function or does this update only work on the hub firmware update?)

Thanks