Converting programs that use new reserved words

Some reserved words have been added since Enterprise COBOL Version 3.

If your programs use any of the new reserved words as user-defined words (such as data item names or paragraph names), then those words must be changed. You can do something similar to what CCCA does and just add a suffix such as -85 to all instances of the word. For example:
77 VOLATILE PIC S9(9) BINARY.
Move 0 TO VOLATILE.
To compile with Enterprise COBOL V5 or V6, change it to: 
77 VOLATILE-85 PIC S9(9) BINARY.
Move 0 TO VOLATILE-85.
The new reserved words are:
  • ALLOCATE
  • DEFAULT
  • END-JSON
  • FREE
  • JSON
  • JSON-CODE
  • JSON-STATUS
  • VOLATILE
  • XML-INFORMATION
  • XML-NAMESPACE
  • XML-NAMESPACE-PREFIX
  • XML-NNAMESPACE
  • XML-NNAMESPACE-PREFIX
  • XML-SCHEMA

The conversion tool CCCA automatically converts these reserved words for you if you have the PTF for APAR PM86253 installed for Enterprise COBOL Version 5.1, or if you have the PTF for APAR PI32750 installed for Enterprise COBOL Version 5.2, or if you have the PTF for APAR PI55980 installed for Enterprise COBOL Version 6.1. CCCA is included with the IBM® Debug Tool product.

CCCA is bundled with IBM Debug for z/OS® (IDz) 14.2 or earlier versions, and it is removed since IDz 15.0. After IDz 14.2 reached EOS on September 30, 2022, you can download CCCA from here at no charge.

For details about CCCA, see COBOL and CICS Command Level Conversion Aid for z/OS (CCCA).

For a table comparing reserved words for all of the different COBOL compilers, see Table 1.