And are they effective? hohiohahahahahaehehe
Zero days are here forever.
Lovely diagram, and I agree, so what?
I already stated the real issue is the time sink of figuring it out.
And should he upgrade? Of course he should. Once committed to the use of a certain bit of infrastructure, you MUST continue in the "upgrading" of the part, at least if the continued running of your preferred application requires it.