Summary of changes

This section lists the major changes that have been made to this document for IBM® Automatic Binary Optimizer for z/OS® Version 2 Release 1. The latest technical changes are highlighted in the HTML version, or marked by vertical bars (|) in the left margin in the PDF version.

Version 2 Release 1 document refresh in July 2022

• PTF updates (UI81299, UI81300)
  • Improves the LIST optimizer option. (See Usage of the LIST option)
  • Adds the following message: BOZ1458W. (See Messages)

Version 2 Release 1 document refresh in September 2021

• PTF updates (UI77444, UI77445)
  • Introduces a new parameter PROCNAME to support cataloged procedure call. (See Components of the ABO Assistant)
  • Improves the Run Time Instrumentation summary report and introduces a new section for module locations. (See Run Time Instrumentation report)
  • Adds the following messages: BOZ1433S and BOZ4128W. (See Messages)
  • Adds support for z/OS 2.5. (See Supported operating systems)

Version 2 Release 1 document refresh in March 2021

• PTF updates (UI74718, UI74719)
  • Introduces a new component, the SMF Analyzer, to the ABO Assistant tool. (See Using the ABO Assistant)
  • Adds support for the new z15 T02 machine. (See Target hardware levels)
• Other updates
  • Updates the Overview section to include information about additional features of ABO and the tools that come with ABO. (See Overview)

Version 2 Release 1 document refresh in October 2020

• PTF updates (UI72097, UI72098)
  • Introduces a new tool, the ABO Assistant to automate all the individual steps required to efficiently optimize your COBOL application using ABO and to clearly report on the CPU time savings from using ABO. (See Using the ABO Assistant)
  • Introduces new syntax for the CSECT and member separator and negation. (See CSECT and BOPT)
  • Improves the ABO IVP by detecting if MACHMIG VEF is set. (See Verifying installation using the Installation Verification Program (IVP))

Version 2 Release 1 document refresh in March 2020

• PTF updates (UI68702, UI68703)
  • Improves the listing transform by displaying prolog information for each CSECT in the "Input Instructions" section. (See Listing transform contents)
  • Improves the Run Time Instrumentation report by:
    • Showing a "Summary report by language" subsection in the "Summary report" section.
    • Introducing the time stamps in the "RTI option" section and the "Summary report" section. These time stamps correspond with the profiling start and end times respectively.
    (See Run Time Instrumentation report)

Version 2 Release 1 document refresh in November 2019

• PTF updates (UI66467, UI66468)
  • Adds a new optimizer option, RTIBIND, to generate RTI Profiler enabled modules. (See RTIBIND)
  • Adds the following messages: BOZ1426S, BOZ1495W, and BOZ1496W. (See Messages)
• Other updates
  • Adds appendixes for the Run Time Instrumentation report, and the manual RTI rebinding instructions. (See Run Time Instrumentation report and Manual RTI rebinding instructions)

Version 2 Release 1

• Adds z/OS Version 2.4 to the list of supported operating systems, and removes z/OS Version 2.1. (See Supported operating systems)
• Adds ARCH(13) for generating code that exploits the new IBM z15. (See ARCH)
• Adds the following message: BOZ4124I. (See Messages)
• Removes the following optimizer option: HANDLERS.