It looks like the updated timetable for the 902 is on Traveline, personally I am using Traveline Scotland specifically. The route itself is not changing. Annoyingly, the PDF timetable is out of date so this is all based of the information it is showing:
Hourly departures Glasgow to Edinburgh Airport from 7:20 till 18:20. Further departures at 19:20, 21:20 and 23:20 operating to Livingston only. There is also one part route departure from Coatbridge to the Airport at 6:42.
In the opposite direction there are two buses from Chapelhall to Glasgow at 6:20 and 8:41, as well as a 6:43 from Livingston to Glasgow. Then, departures from the Airport to Glasgow are at 6:35, 8:20 then hourly till 19:20, then one more at 20:30. Livingston to Coatbridge coaches operate at 20:32 and 00:32, plus one Livingston to Glasgow coach at 22:32.
In other words, later buses to/from Livingston and Glasgow, some removals of earlier runs, retimings and an extra bus at 8:41 from Chapelhall.