Not sure what you mean. For US and Canadian bank account owners, you can withdraw your money by ACH. For bank accounts in other countries, you can get a check mailed to you or do a wire transfer. They also let you get paid to a Payoneer MasterCard if you want.
Releasing funds is terminology they use to talk about individual sales -- individual purchases of your products by customers can be held for review. 2CO will sometimes contact your customer to verify they received the product. Once they verify a held order, it is "released", which means the funds become part of your balance that you can withdraw.