A little warning to anyone who gets one (and a note to
@Digital Igloo) - when I plugged it in and fired up the HX One Librarian app, it alerted me to the 3.70 update, which was great.
What was a little worrying though was having downloaded the new firmware and pressed update, the pedal "looked" like it had switched off completely - no lights on the pedal and the screen was dark.
Fortunately, the update progress bar continued to move and when it got to the end, the pedal rebooted into 3.70, but it was a little worrying for a while, and I could definitely see some users unplugging it from the mains and powering it up again whilst the update was still in progress.
I was going to take a picture but by the time I'd got my phone ready, the update had finished.