As I understand it, SP 2013 will run on .NET Framework 4.5. Claims-based authentication runs on WIF. In .NET Framework 4.5, WIF (2.0) has been substantially updated (changes).
How will this update affect the current SP 2010 Web applications using Claims-based authentication (which was based on WIF 1.0)? Has anyone performed such an upgrade? Is the upgrade process trivial?