Comparing OS/VS COBOL to Enterprise COBOL

OS/VS COBOL supported the 68 COBOL Standard (LANGLVL(1)) and the 74 COBOL Standard (LANGLVL(2)). Enterprise COBOL supports the 85 COBOL Standard. In addition to the language differences between the 74 COBOL Standard and Enterprise COBOL, your OS/VS COBOL programs might contain undocumented OS/VS COBOL extensions.