After long delays attributed to the flying boom, looks like the US Air Force has finally accepted the first KC-46A Pegasus: https://www.yahoo.com/news/u-air-force-accept-kc-46-air-tanker-144513585--business.html

I was at Everett a couple of weeks ago and could see on the flight line about a dozen or so KC-46s ready to be delivered, so the squadrons should ramp up pretty quickly.