How to release custom attribute with Identity Provider 4 version

[Cantor, Scott]

> A caveat: a nameID format of
> urn:oasis:names:tc:SAML:2.0:attribute-format:uri is used for
> attributes and not standard for nameID - I don't think I've
> ever seen it used that way and don't know if will be allowed. 

He's not asking  about a NameID. Attributes have their own NameFormat and that one is the Shibboleth default.

The answer to the original question is "read the documentation".

-- Scott