Active Directory Federation Services (AD FS) 2.0, formerly known by codename “Geneva” Server, passed SAML 2.0 interoperability testing. You can read more on the Forefront team blog in today’s post: MSFT Identity and Access news: Forefront Identity Manager RC1 and ADFS 2.0 SAML interoperability
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Jean-Christophe Cimetiere - Sr. Technical Evangelist