The IBM zEnterprise System is comprised of the IBM zEnterprise 196 central processor complex (CPC), the IBM zEnterprise Unified Resource Manager, built-in support for the IBM zEnterprise BladeCenter Extension (zBX), and optimizers or IBM blades. In this session, the speaker will cover z/OS software and configuration changes required to support the IBM zEnterprise System. He will describe the different functionality supported on each z/OS release, as well as any migration or exploitation actions required to use new functions on the IBM zEnterprise System. All supported z/OS releases can run on the new server and enhancements in SMP/E V3.5 integrate the identification, verification, acquisition, and installation of required PTFs into standard SMP/E processing. Systems programmers and their managers who will upgrade to the latest server will find lots of useful information in this session.