Note: Perfstat is not supported for ONTAP 9.5 and later??

Hi, I was about to download latest version of Perfstat and noticed this on it's overview. 

Note: Perfstat is not supported for ONTAP 9.5 and later.

My question is, will it work with later ONTAP's? If yes, are there any problems, like degraded performance (I know it might hurt a bit, but this is normal), missing values etc, weird results etc?

I haven't tried it on 9.7 but probably will. If there's no perfstat for 9.5 > how do we measure the performance then (ie what tool)?

Cheers,

Jari