@dax702 - According to change notes for USPS, they have changed the shipping method names.
Actually, in the new USPS version, the method name is returned by server. This means if the server (API) changes the method names, our method names should be changed.
Our older version did have fixed method names in the code, however new version will fetch the method names from the API.
If you don't see the postal method, that means the method is unavailable.