KMST 1.2.435 - Luminous

They already have for the Aran revamp Akyrum patch brought.
High Mastery 30 -> 20
Freeze Standing 30 -> 20
High Defense 30 -> 20

Phantom Blow being one of the more major ones, Chains of Hell didn't convert to Phantom Blow. DBs had to Zak again for their 1v1 attack.

Didn't Nexon let you exchange those books for other Aran books though?
It's possible that Nexon could do that again, but I don't expect it.