The above 2 are correct and this is the reason Miqo breaks every patch due to these codes changing, they are randomized as well which means every time they need to be sniffed out from the client files.
Obviously, Miqo is far more complex in terms of reading and interacting with things in-game, zones, UI etc… but in simple cases where it’s very minor hotfixes such as today’s patch notes, I would hazard a guess it’s a simple OP code update.
I’m no programmer/developer so they might say otherwise but I specialize in other IT areas enough to know the above will be correct to a degree. I’m sure they will sniff out the OP codes themselves instead of going off a simple member forum post but in their current situation if it helps then win.