University of Missouri System

Systems and Operations

Announcements

IBM Cobol for OS/390 & VM 2.2.0

The current Cobol compiler on the OS/390 system will be upgraded from IBM Cobol for MVS & VM 1.2.2 (5688-197) to IBM Cobol for OS/390 and VM 2.2.0 (5648-A25).

This is really a two step upgrade from the current Cobol:

• Step 1: Cobol for OS/390 & VM 2.1.0 Fact Sheet
• Step 2: Cobol for OS/390 & VM 2.2.0 Fact Sheet

Migration

There are no JCL changes required for this change when using supported procedures and JCL.

Testing

Compile jobs ran on the test system (UMMVSG) will use the new version of the compiler.

Compatibility

COBOL for OS/390 & VM is fully source and object compatible with COBOL for OS/390 & VM V2 R1 except for:

• New reserved words FACTORY, COMP-5, EXEC, END-EXEC, SQL
• The behavior of the TRUNC(BIN) option has changed for unsigned binary fields that contain values larger than the corresponding signed binary field could have contained
• The default destination of DISPLAY output under OS/390 UNIX has changed from stderr to stdout
• New run-time diagnostics are produced for some situations that were unsupported in prior releases, but the restrictions were not enforced

IBM Cobol for OS/390 & VM 2.2.0 - Documentation Library