I haven't updated my P3A in a while, and I currently have v1.4.0010 loaded on the aircraft.  My RC just updated to 1.4.3.  Which version of firmware should I upgrade to?  v1.8.80 or v1.7.0060?  If I go to 1.8, do I have to load 1.7 first?

i have just upgraded to 1.8,  As I was current on the previous update I had no issues.  I suspect that the GO APP will do automatically what it needs to do.  I am guessing that you will just need the 1.8

Hello Robert, it is recommended to upgrade the firmware in sequence.As for the RC, you can directly upgrade it via DJI GO app.