It's less a question about what changes, and more a question about how well you can recall your past experience (I had the big picture, but forgot the details of several optimizations I'd written in the past, as well as certain CS fundamentals), and how well you can do online coding interviews (I've only written Coq, at a glacial pace, over the last three years).

I will mainly be working on the middle-end and back-end for RISC-V.