My regular readers knows that I don't believe anything unless I test it. Therefore I did a simple test. I provisioned new VM with hardware version 4, installed FreeBSD OS and identified CPU features. You can see screenshot below.
|VM with hardware version 4 and FreeBSD Guest OS|
|VM with hardware version 10 and FreeBSD Guest OS|
Anyway, this is just another proof that everyday there is some surprise and you can always learn something new even in area where you believe you are good at. We never know everything.