Having played and enjoyed The Settlers of Catan, I'm looking to get the Seafarers expansion, but I note in the BGG description it says:
"The American version (Mayfair) should only be used with the American base game, instead of the German one (Kosmos), because of matching components and for the same reason, the Kosmos German version should only be used with the German base game. Additionally, several different editions exist; 4th edition is the most recent. Editions should only be used with same edition, otherwise the purchase of adapter kit is required."
As far as I can see, I have the 2003 copyright Mayfair Games edition of Settlers, so how do I tell which edition of Seafarers I should get?