Table of Contents (exploded view)
Abstract for z/OS Introduction and Release Guide
How to find more z/OS information
Summary of changes
Summary of changes for z/OS Version 2 Release 2 (V2R2) as updated March 2017
Summary of changes for z/OS Version 2 Release 2 (V2R2) as updated December 2016
Summary of changes for z/OS Version 2 Release 2 (V2R2) as updated September 2016
Summary of changes for z/OS Version 2 Release 2 (V2R2) as updated June 2016
Summary of changes for z/OS Version 2 Release 2 (V2R2) as updated March 2016
Summary of changes for z/OS Version 2 Release 2 (V2R2) as updated December 2015
Summary of changes
Summary of changes
What is new in z/OS (V2R1 - V2R2)
z/OS system-level new functions to consider
z/OS Client Web Enablement Toolkit
BCP (MVS) new functions to consider
Allocation considerations
Data set optimization configuration
Switch (CUP) Diagnostics
SYSDSN ENQ Downgrade in JCL
Validation of processor type via D M=CONFIG
BCPii considerations
Consoles considerations
Security enhancements for HMCS, SMCS, and MCS consoles
Support for the Integrated 3270 Console
Adding and removing MCS consoles
Synchronous WTOR Processing
Specifying the TCB address of a task with FORCE TCB
Generic Tracker considerations
Generic Tracker Facility introduction
Data persistence and simplified generic tracking services
Global Resource Serialization (GRS)
GRS FICON CTC Support
GRS ISGENQ Change Exclusive to Shared
GRS EQDQ Monitor support and QScan enhancements
Hardware Instrumentation Services (HIS)
IBM Health Checker for z/OS considerations
IOS considerations
zEnterprise Data Compression (zEDC)
HyperSwap sockets server
Improved z/OS Discovery and Auto Configuration (zDAC) function
IOS read diagnostic parameters
Predictive Failure Analysis considerations
Program Management (Binder) Considerations
Resource Recovery Services (RRS) considerations
Internal Cold Start
Service aids considerations
Manage large SDUMPS
Deallocate LOGREC data sets without a system restart
Limit high virtual CSA storage in an SDUMP
Supervisor considerations
Pause on Pause Element Tokens (PETs)
Supervisor multithreading support
Updating the values of system symbols dynamically
Support for transactional execution
System logger considerations
Prevent access to LOGR couple data sets
Allocate offload data sets
System Logger enhancements in z/OS V2R1
System Management Facility (SMF) considerations
Improving region management
Digital signatures for SMF records
SMF real-time interface
System REXX considerations
Console Host Command Environment
Unicode considerations
Dynamic modifications to VLF without restart
WLM considerations
WLM considerations for V2R2
WLM support for V2R1
XCF considerations
Cross-System Coupling Facility (XCF) enhancements for z/OS V2R2
Cross-System Coupling Facility (XCF) enhancements for z/OS V2R1
Capacity Provisioning new functions to consider
Capacity Provisioning considerations for V2R2
Common Information Model new functions to consider
Communications Server new functions to consider
Support considerations in V2R2
Security
Simplification
Availability and business resilience
Application, middleware, and workload enablement
Economics and platform efficiency
Cryptographic Services new functions to consider
Enable PKI Services to sign the Online Certificate Status Protocol (OCSP) responses
PKI Services 64 bit support
PKI Services support NxM authorization
System SSL: Cache session identification
System SSL: OCSP support and CRL updates
System SSL: PKCS #12 certificate store
ICSF: AES counter mode encryption support
ICSF: CPACF RNG support
ICSF: Format preserving encryption
ICSF: KDS key archiving
ICSF: Key material validity
ICSF: New functionality in the Crypto Express5
ICSF: Support architecture for greater than 16 domains
ICSF: UDX exit support
PKI Services: Enterprise PKCS#11 secure key support
PKI Services: RFC 5280 and 4523 currency
PKI Services: Extended Validation (EV) certificate
PKI Services: Certificate administration support
System SSL: Transport Layer Security (TLS) protocol version 1.2
System SSL: Suite B Cryptography
System SSL: Enhanced DSA Support
System SSL: RFC 5280 PKIX certificate and CRL profile currency
System SSL: SAF key ring validation
System SSL: Enterprise PKCS#11 hardware security module
System SSL: gskkyman certificate creation menus refined
DFSMS new functions to consider
Advanced Copy Services new functions
Advanced Copy Services enhancements for z/OS V2R2
Advanced Copy Services enhancements for z/OS V2R1
DADSM/CVAF new functions
DADSM/CVAF enhancements for z/OS V2R2
DADSM/CVAF enhancements for z/OS V2R1
DFSMS catalog new functions
DFSMS catalog enhancements for z/OS V2R2
DFSMS catalog enhancements for z/OS V2R1
DFSMSdfp utility new functions
DFSMSdfp utility enhancements for z/OS V2R1
DFSMSdss new functions
DFSMSdss enhancements for z/OS V2R1
DFSMShsm new functions
DFSMShsm enhancements for z/OS V2R2
DFSMShsm enhancements for z/OS V2R1
DFSMSrmm new functions
DFSMSrmm enhancements for z/OS V2R2
DFSMSrmm enhancements for z/OS V2R1
DFSMS Object Access Method (OAM) new functions to consider
Object Access Method (OAM) enhancements for z/OS V2R2
Object Access Method (OAM) enhancements for z/OS V2R1
PDSE new functions
PDSE enhancements for z/OS V2R1
Open/Close/End of Volume new functions
Open/Close/End of Volume enhancements for z/OS V2R2
SMS new functions
SMS enhancements for z/OS V2R2
SMS enhancements for z/OS V2R1
DFSMS VSAM new functions
VSAM and VSAM RLS enhancements for z/OS V2R2
VSAM and VSAM RLS enhancements for z/OS V2R1
DFSORT new functions to consider
High Performance FICON (HPF) exploitation
Date functions
64-bit support
Performance and resource usage improvements
XTIOT, uncaptured UCBs and DSAB above 16 megabytes virtual
Extended address volumes
Alphanumeric comparison tests
More PARSE fields
Repeating PARSE fields
Alphanumeric tests for PARSE fields
Insert a string at the end of variable-length records
Symbol enhancements
Improved diagnostics
Distributed File Service new functions to consider
Providing support for 64-bit addressing (AMODE64)
Improved monitoring of zFS performance
Improved large directory performance
Enhancements to the salvager utility
Performing backup for changed aggregates
Support added for Microsoft Windows Server 2008
HCD new functions to consider
HCM new functions to consider
IBM Tivoli Directory Server for z/OS new functions to consider
Replication of password policy operational attributes from read-only replica to supplier server
Dynamic group performance and scalability improvements
Activity log enhancements
Server compatibility level upgrade with no downtime
Transport Layer Security (TLS) protocol version 1.2
Remote Cryptographic services
ICTX Plug-in
ICKDSF new functions to consider
SPID fencing
Infoprint Server new functions to consider
Infoprint Central enhancements
Serviceability enhancements
Start and stop Infoprint Server daemons
TSO/E command for controlling printers
Variable inline email message
Dynamic configuration
SMF type 6 enhancements
System logger
Integrated Security Services new functions to consider
ISPF new functions to consider
ISPF Dialog Manager component changes
PDF component changes
JES2 new functions to consider
JES2 growth and job limits
JES2 updates the job execution control interface
JES2 deadline scheduling
JES2 adds step completion code
JES2 supports 8-character job class names
JES2 supports job modification SSI 85
JES2 supports JCL symbolics
JES2 adds in-stream data support
JES2 supports 64-bit storage requests
JES2 adds SYSOUT work selection optimization
JES2 supports new keywords on the JOB JCL statement
JES2 supports access controls on job classes
JES3 new functions to consider
JES3 Common JCL
JES3 Data set integrity
JES3 JECL Tracking
JES3 Output disposition (OUTDISP)
JES3 Scaling of workloads
JES3 Symbolics
JES3 expands 8-character class name support
JES3 supports system symbol updates
JES3 adds in-stream data support
JES3 supports 64-bit storage requests
JES3 supports deleting spool volumes
JES3 supports ENF 70 events
JES3 supports new keywords on the JOB JCL statement
JES3 supports access controls on job classes
JES3 supports multiple TSO/E user ID log on
Language Environment new functions to consider
Providing support for delayed debug
Reflecting the WORKING-STORAGE allocation in the storage report produced by Language Environment
Accessing exported JCL symbols
AMODE 64 support for large pages
Enterprise COBOL V5.1 support
Converting between multibyte characters and specified Unicode characters
Added support for exposing memory overlays that cause heap damage
Nested CEEPIPI environments
Accessing data by blocks instead of bytes or records
Removal of runtime option usermods
Providing support for SIMD
Additional file I/O programming interfaces for z/OS UNIX System Services
Updates made for C11 compliance
Converting multibyte Unicode encoded data to wide character data
Library Server new functions to consider
Metal C Runtime Library new functions to consider
Support for alternative name for function "main"
Support for mixed mode IPA
NFS new functions to consider
z/OS NFS Client AMODE64 or LP64
z/OS NFS Client mount option for UNSTABLE NFSv4 write
Cache for UID/GID name mapping
z/OS NFS BPXMTEXT support
z/OS NFS Server Ctrace without MODESET SVT
z/OS NFS Server persistent filehandle
z/OS NFS crosscheck Site Attribute vs Checklist
Add timestamp to error logs and capability to retain latest error log data
Display NFS version 4 domain
CONSOLEMSGS operand
Ctrace buffer size
AMODE64 or LP64
Resource Measurement Facility (RMF) new functions to consider
Run-Time Library Extensions new functions to consider
SDSF new functions to consider
New z/OSMF SDSF panels for system resources and data sets
New panels for system resources and data sets
New job detail panels
Job step panel
Job group and dependency panels
SDSF REXX enhancements
System command enhancements
Saving and printing tabular data
Action characters and overtypeable fields from the command line
IBM z Integrated Information Processor (zIIP) exploitation
HASPINDX removal
64-bit addressing
Enhanced support for browsing with REXX and Java
Sort on up to 10 columns
Symbols in filtering
Long job class names
Trace SDSF security
Print using source attributes, carriage control and other enhancements
Console name modification
Display of duplicate data sets
Security Server (RACF) new functions to consider
IBM Multi-Factor Authentication for z/OS (phase 2 and phase 3)
IBM Multi-Factor Authentication for z/OS
Remote sharing enhancements to allow dynamic MAIN switching
Remote sharing enhancements to deny inbound requests
R_admin callable service enhancement to extract RACF remote sharing configuration data
RACF Read-Only Auditor
UNIX Search Authority
RACF RACDCERT granular certificate administration support.
Network Authentication Services (NAS) support for Public Key Cryptography for Initial Authentication (PKINIT)
RACF R_datalib enhancement
Enhanced RACF password security
RACF Health Checks
Database unload of certificate DNs
Restricting access to a zFS file system
Remove BPX.DEFAULT.USER Profile
Reporting certificates in the chain when added and listed
Enterprise PKCS#11 secure key support
RACF Remote sharing enhancements
RACDCERT enhancement
Health check for digital certificate expiration
RACF support for DB2 V11
ServerPac new functions to consider
ServerPac supports ordering products without a full system or subsystem
Secure FTP
RACF enhancements
SMP/E new functions to consider
SMP/E ZONEMERGE enhancements
Support for HTTPS downloads
Support for SMP/E ISPF dialog split screen
TSO/E new functions to consider
TSO/E OPERSEWAIT default change
TSO/E REXX enhancements to EXECIO, LISTDSI, and STORAGE functions and new MVSVAR variable
TSO/E TMP supports PARMDD keyword of the JCL EXEC statement passing a parameter string greater than 100 characters long to TMP
XL C/C++ new functions to consider
New compiler options
CHECKNEW
INCLUDE
SMP
SYSSTATE
THREADED
New compiler suboptions
New suboptions of compiler option TARGET
New suboptions of compiler option VECTOR
New suboptions of compiler option LANGLVL
Changed compiler options
Changes to default ARCH and TUNE level
Changes to compiler option DSAUSER
Changes to compiler option SUPPRESS
Name change of the OBJECTMODEL(COMPAT) compiler option
New nullptr keyword
Automonitor type support for XL C/C++ applications
New debug information format
Support for debugging optimized code
Support for new hardware built-in functions
Support for parallel programming
z/OS OpenSSH new functions to consider
Support for Kerberos through General Security Service - API
zEnterprise Data Compression implementation
Support for FIPS 140-2 mode
z/OS UNIX System Services new functions to consider
Limiting access to the Write an SMF Record function
Enhancements for the kernel and LFS: 64-bit addressing mode and above-the bar stack storage
Increased thread limit in the kernel with the KERNELSTACKS(ABOVE) parmlib option
Providing support for task-level security
Debugging vector registers
Added dbx support of vector-enabled programs
Additional support for conversion of text files
Enhancements to the automount facility
Expanded number of shared condition variables and mutexes
Full support added for conversion between code pages
Increased number of supported pipes
More accurate access counts in a new SMF record
Running tagged shell scripts in different SBCS locales
Simplified management of TFS file systems
Using the _login() service without specifying a password
z/OS Management Facility (z/OSMF)
IBM Cloud Provisioning and Management for z/OS
Workflow editor
z/OS console APIs
z/OS elements and features
z/OS base elements
z/OS optional features
z/OS base elements descriptions
Alternate Library for REXX
BCP (Base Control Program)
BookManager READ
BDT (Bulk Data Transfer)
Common Information Model (CIM)
Communications Server
Cryptographic Services
Distributed File Service (DFS)
DFSMSdfp
Environmental Record Editing and Printing Program (EREP)
ESCON Director Support
FFST/MVS (First Failure Support Technology/MVS)
GDDM (includes PCLK and OS/2 LINK)
HCD (Hardware Configuration Definition)
HLASM (High Level Assembler)
IBM HTTP Server - Powered by Apache
IBM Tivoli Directory Server for z/OS (IBM TDS for z/OS)
ICKDSF (Device Support Facility)
Integrated Security Services
ISPF
JES2
Language Environment
Library Server
MICR/OCR
Metal C Runtime Library
Network File System (NFS)
Open Systems Adapter Support Facility (OSA/SF)
Run-Time Library Extensions
SMP/E
Time Sharing Option/Extensions (TSO/E)
Terminal Input Output Controller (TIOC)
z/OS Font Collection
z/OS Management Facility (z/OSMF)
z/OS OpenSSH
z/OS UNIX System Services (X/Open UNIX 95 functions)
3270 PC File Transfer Program
z/OS optional features descriptions
BookManager BUILD
Bulk Data Transfer (BDT) File-to-File
Bulk Data Transfer (BDT) SNA NJE
Communications Server Security Level 3
DFSMS Features (DFSMSdss, DFSMShsm, DFSMSrmm, and DFSMStvs)
DFSORT
GDDM-PGF
GDDM-REXX
Hardware Configuration Manager (HCM)
High Level Assembler Toolkit
IBM Knowledge Center for z/OS
Infoprint Server
JES3
RMF (Resource Measurement Facility)
SDSF (System Display and Search Facility)
Security Server
XL C/C++
z/OS Security Level 3