There are some HCD modules in the nucleus, so depending on what they do/support you might not be able to run an older HCD on an uplevel system.
Mark Jacobs Sent from ProtonMail, Swiss-based encrypted email. GPG Public Key - https://api.protonmail.ch/pks/lookup?op=get&[email protected] On Friday, January 16th, 2026 at 1:03 PM, Radoslaw Skorupka <[email protected]> wrote: > Is is somehow possible to run backlevel HCD on current system? > I mean current system, like z/OS 3.1 and HCD which is aware of machines > like z900 or even older ones. > I just wanted to check some definitions on the older hardware. > > -- > Radoslaw Skorupka > Lodz, Poland > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
