Get the firmware here:
Read more about the firmware and best settings here at Fujirumors:
I had to think about how important the update is for me. No big deal. But when I´m traveling I always take my X-T1 with me. It is more versatile for this kind of photography and has built in WLAN (and a tilting screen etc.). And when you do travel photography there are situation were you need a fast AF to track moving objects. For street photography I don´t need this update. I use mostly zone-focusing together with my X-PRO1 so I can concentrate more on framing.