I have both the new and old firmware.
I'm still mixed thoughts about the new firmware - more so the battery life with consistent power usage. But yes - they will update your firmware for $25 if you ship to them.
I only got mine for free because of warranty issue (controller pumping 50v to my headlight with headlight OFF and only 10v to headlight when headlight ON. Should be 0v off, 50v on)