Changes in z/OS V2R1

New base elements: The following base element is new in z/OS® V2R1:
  • z/OS Font Collection
Changed base elements: The following base elements were changed in z/OS V2R1:
  • BCP
  • CIM
  • Communications Server
  • Cryptographic Services
  • DFSMSdfp
  • Distributed File Service
  • HCD
  • IBM® Tivoli® Directory Server
  • Integrated Security Services
  • ISPF
  • JES2
  • Language Environment®
  • Library Server
  • Network File System (NFS)
  • Runtime Library Extensions
  • TSO/E
  • z/OS UNIX
Changed optional features: The following optional features were changed in z/OS V2R1:
  • Communications Server Security Level 3
  • DFSMSdss
  • DFSMShsm
  • DFSMStvs
  • DFSMSrmm
  • DFSORT
  • HCM
  • Infoprint Server
  • JES3
  • RMF™
  • SDSF
  • Security Server
  • XL C/C++
  • z/OS Security Level 3

Deleted base element: No base element was deleted in z/OS V2R1.

Deleted FMIDs: The following FMID has been deleted in z/OS V2R1:
  • z/OS UNIX Integrated Call Level Interface (ICLI): HSAP360
New server:
  • z/OS V2R1 can run on the IBM zEnterprise® EC12 (zEC12) and BC12 (zBC12) servers.
Changes to driving system requirements:
  • The minimum driving system level for installing z/OS V2R1 is z/OS V1R12. (For installing z/OS V1R13, it was z/OS V1R11.)
ServerPac and SystemPac changes:
  • The Modify System Layout dialog allows you to define user data sets as HFS or zFS.
  • IBM shipped data sets can be merged into user defined data sets using Merge function in Modify System Layout.
  • Existing data sets can be defined as user data sets in Modify System Layout dialog. For more details, refer to the Dynamic HELP Facility of Define a USER Data Set panel.
  • You can now use a Product ServerPac option to order only MVS™ and CICS®, only MVS or IMS™, or only MVS and NCP without including a base product in the order. See Product ServerPac.

Product documentation changes: The product ID for z/OS changed to 5650-ZOS to reflect the latest version z/OS. When an IBM product identifier changes, all documentation for the version receives new order numbers. For a complete list of publications, and current order numbers, see .

Parent topic: Summary of changes