Travelport and Apple Vacations, among the largest tour operators in North America, announced today that Apple Vacations had dumped Sabre and completed the conversion to Travelport’s Worldspan, with all of its bells and whistles.

In the deal 5-year deal, Worldspan becomes Apple Vacations’ preferred GDS and in addition to getting air, rail and hotel content, the tour operator gets the “added ability to book low-cost air content,” the companies stated.

But if you read between the lines of the release, Sabre and Apple Vacations must have had a big falling out.