just a correction, seems like the upgrade might not be "free", at least in japan the upgrade is free for the collectors edition, but you need to pay 110 yen for the standard edition upgrade (pretty much 1 dollar so that doesnt really matter either way, im not even sure why that low barrier is there, might be related to laws in japan)
nioh 1 does not offer an upgrade.
nioh 1 does not offer an upgrade.