Thanks Brian. Good to know. The description/explanation did not mention this.
After last iOS update, which royally screwed up the operation of my iPhone5 (power draining to zero in an instant, even while it was plugged in to charge -- that is a significant problem for a phone being relied on for business; long delay between typing and the letters showing up on the screen; the touch screen becoming numb to the touch for short periods; etc), I am unsure if I can continue to rely on my iPhone any longer for my business. I was planning on replacing this iPhone5 in February but I am considering switching to a more business-reliable brand in advance of my third anniversary of having this phone.
I have also become very leery about relying on Apple to debug the iOS update in advance of sending it out.