Yes, the 6.4 version is the latest, but there hasn't been any change since then, so it applies to 7.2 as well.
Regarding the P.S.: threat-feeds are not automatically applicable everywhere, only where they've been allowed to be used (by development, and ultimately by project management). You can reach out to your Fortinet sales contact to let them know that you are interested in this being implemented in the future. (there's an existing feature-request for it, but it has not been actioned yet)
[ corrections always welcome ]