Hi there, thank you for your answer.
I'm kinda new to this, but you're saying I can remove any feature ingame simply by disabling them in NPCs (for example, not letting anyone teleport to the cities released after Lighthalzen)? But what about items, drop changes on older monsters etc.? Wouldn't it be easier to use the client used up until the day it was released?
Also, has anyone every done a server 'stuck' in a specific episode? What is the best/easiest way to do this?