What do you do with a programming language?
I know C++, but it's been years since I last worked with it.
I know C++, but it's been years since I last worked on it.
Of course, we could always use the seemingly more obvious (and safer) alternative:
It's been years since I last coded in C++.
but that's not what I want.
Is there any word/phrase which means to "code in" a programming language?