You plan to upgrade from R65 to R75 Software Blades. Do you need new licenses and license strings for this scenario?
A.
No, the upgrade will preserve licenses.
B.
Yes, you need to buy/convert licenses in the User Center first, and then reapply licenses to upgraded systems with the new Software Blades licenses.
C.
Yes, the upgrade will do an automatic conversion in the User Center, but you will need to reattach the new licenses.
D.
No, the upgrade will convert all licenses to R75.