In CICS® Transaction Server for z/OS® Version 3 Release 1, interfaces to the VS COBOL II, OS PL/I and C/370™ runtimes are removed. Applications compiled and linked with these non Language Environment® conforming products usually execute successfully under Language Environment in compatibility mode.
CICS support for OS/VS COBOL runtime is removed- Applications compiled at this level of COBOL must be re-compiled with a supported level of COBOL
Refer to the Migration guides for Language Environment and to the Migration guides for the language in use for further information.