Skip to main contentIBM COBOL Migration Assistant

Welcome to the IBM Enterprise COBOL Migration Assistant

This website provides an interactive checklist that can help you navigate through the migration process from older IBM COBOL compilers to IBM Enterprise COBOL for z/OS 6.2, 6.3, or 6.4.

Note: COBOL 6 is compatible with COBOL 5. If migration to COBOL 5 has already started and you would like to move to COBOL 6, any programs compiled with COBOL 5 do not need to be recompiled. Any programs that require source code updates from COBOL 5 to COBOL 6 can be recompiled in COBOL 6 with consistent results.

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