ZeroMu-SH S12 ep1-2 No-Reset|exp 10x|30%|offlevel|all class lvl 1

Is this like the version of Korea season 12 Ep 2? The one with the new class upgrades? Dragon Knight , etc?

No, It doesn't have the new class upgrades (the ones at lvl 750).
That's episode 2, this is episode 1.