Several changes regarding IT have been introduced with the release of Dynamics NAV 2013, including:
The Microsoft Dynamics NAV setup program has been enhanced and redesigned. There are now four setup options instead of six. The classic database server is no longer available.
When you install Microsoft Dynamics NAV in a production environment with the client, server, and database tiers each installed on a separate computer, you are no longer required to manually configure delegation or to manually create SPNs to enable the Microsoft Dynamics NAV Windows client to communicate with SQL Server.
Microsoft Dynamics NAV Server now only runs on 64-bit editions ...