Has any Build EVER been incompatible with anyone's code?

I’m asking this because, I’m looking ahead at the upcoming 2.8 build, and am worried my code (artificial intelligence human baby) will not run because the call names have been changed in 2.8 or if 2.8 uses C++. Any past experiences of incompatibility? And will 2.8 use C++ for me to code in?

Why don’t you just take the 2.8 test build into a different folder than your existing Blender. And then test your code there?

Because I have to pay a freelancer to code it… . . . Hm I guess I’ll know if it should be done in c++ by looking at the test build 2.8! O.O …And would know the call names work by having the freelancer code it in the test build AND 2.78.

We…HAVE…2.8…DOH

Right?

Ummm. I hope someone else know the answers to your questions.