re:
Pete is correct. Currently, Windows 10 for Mobile is still in the Preview stage, and has not yet been approved for mass adoption. Your mileage may vary.
That said, I am rather enjoying Windows 10 Mobile on my Lumia 640, but there are still issues with it where some things simply do not work as they should in a finished OS.
If you need everything functioning perfectly in a mission critical way, I'd suggest you wait for it to be approved for mass adoption.
Thanks, Pete, for posting that link!