Increase the performance of your compiled COBOL applications

Automatic Binary Optimizer
for z/OS


The Automatic Binary Optimizer for z/OS improves the performance of already compiled COBOL programs. The Optimizer does not require source code, source code migration, or performance options tuning. It uses modern optimization technology to target z Systems, including IBM z13, IBM z13s, IBM zEC12, and IBM zBC12, to accelerate the performance of existing compiled COBOL applications.

Leverages the latest advanced COBOL optimization technology

Generates code to target the latest deployment systems

Can be used with IBM Application Delivery Foundation for z Systems family of products

Available as 90-day no-charge trials

IBM Automatic Binary Optimizer for z/OS resources

Always up-to-date system requirement reports can be dynamically generated using the Software Product Compatibility Reports (SPCR) tool.

For your convenience, the tabs below identify the supported releases of IBM Automatic Binary Optimizer for z/OS from which you can select detailed system requirement reports for different contexts (by Operating System, by component). Note that clicking a link will always generate a new, up-to-date report.

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1.2 Release



1.1 Release



IBM Automatic Binary Optimizer for z/OS V1.2 enhancements include:

  • Supports optimization of additional COBOL programs that are compiled with earlier COBOL compilers
  • Supports optimization of COBOL programs containing CICS® syntax for handling errors
  • Delivers improved ease-of-use features
  • Generates optimized programs that are more efficient

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Supports optimization of additional COBOL programs

  • Automatic Binary Optimizer for z/OS, V1.2 supports optimization of COBOL programs that are compiled with:
  • V1.2  continues to support optimization of COBOL programs that are compiled with:

Supports optimization of COBOL programs containing

  • Automatic Binary Optimizer for z/OS, V1.2 supports optimization of COBOL programs containing  CICS HANDLE ABEND and CICS HANDLE AID
  • V1.2 continues to support optimization of COBOL programs containing all the key COBOL features supported by Automatic Binary Optimizer for z/OS, V1.1

Delivers improved ease-of-use features

  • Allowing optimization processing to be controlled down to the CSECT level.
  • Error processing enhancements to detect user error conditions earlier and to provide more informative messages.
  • Generation of the optimized programs is now itself more efficient by using less memory and CPU time than with Automatic Binary Optimizer for z/OS, V1.1.

Generates optimized programs that are more efficient

  • Automatic Binary Optimizer for z/OS, V1.2 delivers additional performance improvements in the generated optimized COBOL programs. Areas of improved performance include:

Trial editions of IBM Automatic Binary Optimizer for z/OS

Trial editions of Automatic Binary Optimizer for z/OS, V1.2 are available with a 90-day evaluation license at no charge, starting November 11, 2016. The Trial editions allow you to test and evaluate the benefits of optimizing your existing COBOL applications, and is available as either an on-premise installed trial or as a simplified cloud service. The Automatic Binary Optimizer for z/OS Trial V1.2 can only be used in non-production environments.

The on-premise version of IBM Automatic Binary Optimizer for z/OS Trial is available through your IBM representative or IBM Business Partner using the traditional IBM ordering process, or from IBM through Shopz. To order through Shopz, after registering or logging in, specify the following information to search the Shopz catalog:

Alternatively, you can try the Automatic Binary Optimizer for z/OS Trial Cloud Service. This service is a simplified version of the Automatic Binary Optimizer for z/OS Trial that does not require installation of the Trial or the related Language Environment PTFs on your system.

IBM Automatic Binary Optimizer for z/OS Trial resources

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