How to upgrade VSC 7.2.1 to VSC 9.7

Hello, my friends,

I am looking for documentation or steps how to upgrade VSC 7.2.1 to VSC 9.7.

I know about document "how to upgrade to VSC 9.6 from 7.x" https://docs.netapp.com/vapp-96/index.jsp?topic=%2Fcom.netapp.doc.vsc-dsg%2FGUID-91C61F51-0031-4224-BAED-9E5CD97DB392.html  

And I found  "how to upgrade to VSC 9.7.1 from 9.7" https://docs.netapp.com/vapp-96/index.jsp?topic=%2Fcom.netapp.doc.vsc-dsg%2FGUID-91C61F51-0031-4224-BAED-9E5CD97DB392.html  

But there is an information gap in the upgrade from 9.6 to 9.7.

So how can I upgrade VSC 7.2.1 to VSC 9.7?