A Software Upgrade Grounded Hundreds of Flights This WeekendAdam Clark Estes8/17/15 10:42am571EditPromoteGo to permalinkWere you flying to or from the eastern seaboard over the weekend? I’m so sorry. A botched software update caused hundreds of flights to be delayed or cancelled on Saturday and Sunday, so there’s a decent chance you had a bad trip. What happened? A software upgrade, of course.