If you wish to use new CPU features such as the imaginary AVX-1337, have fun waiting a year before being able to run your leak check.

And no, I don't want to maintain multiple code paths on my system, even for compiled generated AVX[2,512,SSE4.1] code. If you do so, you end up having a dev system unrepresentative of the production one.

If nothing else, it needs to be updated for various new syscalls/x86 instructions periodically on the different platforms it supports (if you've never tried running valgrind on something that isn't Linux, you might not have run into this.)