Have there been any changes to the underlying files that are produced by performance collection in V5R1? I understand that a CRTPFRDTA command will create the 'old' files (which I need for an application I have), but have they changed at all?
All of the files used by CRTPFRDTA are located in the Information Center. They are not, however, marked for changes. If your concern is that the application will no longer operate correctly, simply create your files in a temporary library and copy them to the "Old" copies of the files and run your application over those files.