I mean having a look around at some of the technical innovation in this space seems to show that there are many firsts happening with the airframe.

https://www.wired.com/2016/06/course-f-35-comes-400000-augme...

They may not be firsts overall, but it seems like a pretty complicated environment to perform testing and development in.

I have to wonder what getting a software build out for a fighter jet must be like, and getting someone up in the air in different environments to test it must make the testing process daunting.