I heard that Microsoft changed the SMP (Symmetrical Multiprocessing) feature in Windows 2000 during the beta. What changed?
Microsoft announced on August 16, 1999 that the final release version of Windows 2000 would provide better multiprocessing support that was previously announced. Specifically, the Server Edition was bumped from 2 to 4 four processor support, the Advanced Server Edition was bumped from 4 to 8 processor support, and the DataCenter Server Edition was bumped to 32 processor capability. Professional Edition, with support for up to two processors, is unchanged.