Just so im understanding this 100% and for the benefit of anyone else who doesn't. It looks like you can no longer go straight to smelting iron, the ore smelter requires hard metal. To smelt iron you must first mine tin and copper ore and smelt in the new stack furnace, then make bronze with a crucible. bronze is the only way to get hard metal for the ore smelter for iron.
That correct? boy... I mean i like that theres more of a "bronze age" (week?) but boy its alot more work if you are solo to find tin, copper and iron ore. I guess I should not have mined iron at all, but shouldn't the wrought iron sword be buffed to be between bronze and steel now that bronze isn't a sidestep.