Installing programs in load library secondary extents

CICS supports load library secondary extents that are created while CICS is running. If you define libraries in the DFHRPL or dynamic LIBRARY concatenation with primary and secondary extents, and secondary extents are added as a result of link-editing into the load library while CICS is running, the CICS loader detects the occurrence, closes, and then reopens the library. This means that you can introduce new versions using the CEMT NEWCOPY command, even if the new copy of the program has caused a new library extent.

Note: If you are using DFHXITPL, the SYSLMOD DD statement in the binder step must refer to a PDSE (not a PDS as for the older PL/I compilers).