Upgrading from CA GEN 8.5 to 8.6, will new LMP keys be needed for the upgraded product?
Please see this link:
That being said, please know that LMP keys have expiration dates. New keys are needed when they expire. Basically when maintenance is paid, the keys are updated.
The keys for CA GEN 8.5 will be fine for CA GEN 8.6 as long as they have not expired.