Summary of changes

This section lists the major changes that have been made to this document for IBM® Automatic Binary Optimizer for z/OS® 2.3. The latest technical changes are highlighted in the HTML version, or marked by vertical bars (|) in the left margin in the PDF version.

Automatic Binary Optimizer for z/OS 2.3

  • Supports the ARCH=15 option for generating code that targets the latest z/Architecture® features in IBM z17™ . (See ARCH)
  • ABO 2.3 eligible COBOL compiler expands to IBM Enterprise COBOL for z/OS 6.5. (See Eligible compilers )
  • z/OS 2.3 and z/OS 2.4 are no longer supported. (See Supported operating systems)