It's not clear to me. The big new thing in the 74 core is the vector extension (thus, RV64GCV) and in the context of the question it might very well have been

It's not clear to me. The big new thing in the 74 core is the vector extension (thus, RV64GCV) and in the context of the question it might very well have been that the OP was asking about. Clear and effective communication benefits from the absence of ambiguity lest we just end up with a bunch of TLAs that ATM seems FTW, but might raise a "WTF" for someone else. YMMV. EDIT: reworded