The new Helm of Secrecy card reads "Limit 1 per deck. Action: Choose a hero you control and discard all tokens from it. Select a different non-, non- hero from your collection with a threat cost less than or equal to the chosen hero. Swap those heroes, moving all eligible attachments and damage tokens to the hero from your collection."
Does "different hero" mean that it has to be a different hero by name or could you switch a hero for a different version of that hero?