IBM Enterprise COBOL Version 5 and Higher requires high impact adjustment when upgrading from Version 4 or earlier versions of the compiler.
This document assumes that you have already completed your runtime migration to Language Environment.
How can I check that my processor are ready to works with Enterprise Cobol?
Enterprise Cobol Version 5 (or Higher) requires a migration plan when upgrading from OS/VS COBOL, here is a list examples of change.
- PDS are no more supported, you need to convert them.
- Some compiler options are not supported anymore. For details see chapter "Unsupported OS/VS COBOL compiler options" from the Enterprise COBOL for z/OS Migration Guide
- More datasets are used by Enterprise Cobol, SYSUT8 to SYSUT15 and SYSMDECK are now required.
- Also, depending on which COBOL compiler you are migrating from, you might need to make COBOL source-code changes.
For any other option, please have a look to Enterprise COBOL for z/OS Migration Guide.
See our other Knowledge documents:
TEC1608491 - Why migration to Enterprise Cobol requires to convert PDS to PDSE?
TEC1915537 - How to resolve IEW2606S error?