Enterprise COBOL for z/OS 4.1 offers several new features, including enhanced DB2 support (mostly for DB2 V9) and the ability to take advantage of the z/OS XML System Services parser. But what caught my eye was something that every shop can take advantage of. There is a new section in COBOL compiler listings that shows from which library each copybook was pulled, and even when each was created and last changed. To find this section, do a “find” on “COPY/BASIS” while viewing the listing. Be sure that the compile was done with the XREF option set on. This new feature should help if there is any confusion regarding where a copybook came from that was used in the compiling of a program.