Ensign 82 ran for the last time today. As of Monday, its journeys are replaced by new journeys on the 81, which runs the other way around the Hutton loop.
See the 81's full timetable here.
SM Coaches have deregistered route 21, but don't worry it's not being axed. It's now being run by a company called Townlink, to exactly the same timetable. Shame Townlink don't have a website.