IIRC, there *is* a patch to block updates, but it comes with a big shiny warning that says "untested, may not work" ;o).
Regardless of that particular tidbit, basically what @DNSB said
.
There was *one* major version jump a few months ago that broke bits of NM, but that's it.
KFMon, on the other hand, *never* survives update (by design).
This is all laid out in the documentation.