Hello, I have a PS4 I had working 2-3 years ago (jailbreak) and would like to know if I should update it to a newer version FW and if so what version and then what the best method is these days.
5.05 is still the golden firmware for PS4 jailbreak.
If ur version is 7.xx, I recommend updating it to 9.0 but u will need a usb drive for jailbreaking purpose which u need to plug and unplug at the tym for jailbreak.