It's likely the case that the house numbers are from Google Street View, and they are using them to improve the addressing for Google Maps. I'm a bit puzzled b

It's likely the case that the house numbers are from Google Street View, and they are using them to improve the addressing for Google Maps. I'm a bit puzzled by this update, though. I have reCAPTCHA on a wiki that I maintain, and I still see the traditional text based ones, not anything like these new number based ones. Are they rolling this out slowly?