Originally Posted by
tstauck
Actually just refreshed my reservation and it did change to "Business" instead of "BusinessFirst" on an existing reservation.
Sent a message to United to ask if there's any difference.
I doubt there will be any difference other than name. I'm thinking introduction of Polaris left BF only on p.s. flights (and Lima?), so UA's simply changing it to Business. Simplifies lounge rules. Business (p.s. or int'l) gets you into UC. Polaris gets you into Polaris lounge (and/or UC).