What you should know about z/OS, z/VM and their supported products for the IBM Z Personal Development Tool (zPDT)

IBM Software stacks for zPDT systems provide qualified PartnerWorld Independent Software Vendors (ISVs) with z/OS, z/VM, and associated middleware products. The z/OS Software stack for the zPDT systems is built two times per year typically coinciding with the release of new versions of z/OS. The z/VM Software stack is updated periodically.

NOTE: All IBM Software stacks for zPDT systems are provided via downloads from the site. DVDs are not available.

NOTE: There is an annual US $900 subscription fee for the use of the IBM Software stacks for zPDT systems. This annual fee covers the z/OS and z/VM Software stacks in any combination. One stack, two stacks or three stacks are available for a single US $900 fee.

IMPORTANT:     Please READ the Disclaimer!!

Announcements, Changes and Updates for zPDT Systems

IMPORTANT Zowe information when running on a zPDT system

Important Information about ZOWE use on ADCD Release Z25C

Starting with ADCD Z25C, Zowe has been upgraded to V2.0.

The product has been configured for Internal use. Meaning the IP address is The section below describes the issues we found during ZOWE testing:

Known Issues:

  1. Zowe has shown to take an excessive amount of time to open the Desktop port, which is 7554. A case has been opened with the support center regarding its performance.

  2. Once Zowe Desktop has fully initialized, the following functions do not work as expected:
    VT Terminal connects though it never shows the login prompt.
    IP Explorer does not show any data.

Db2 12 now supports encryption of Db2 data with z/OS DFSMS data set encryption, and function level 506 introduces new policy controls for managing of key labels. For more information go to URL: DB2 Administration Tool(DM) and DB2 V12 with V12R1M506

The option to use Secure SSL/TLS for TN3270 has been provided with this ADCD release. We know the newer versions of PCOMM, after V6.0, will not require any special action to use SSl/TLS and most third party emulators will work as well. We believe the most current version of PCOMM is V13 and it will only run on Windows 10 and above. If you still have the Windows 10 box you should try it out. If you are using a third party TN3270 emulator then you should check with owner of the third party TN3270 emulator for assistance with implementing SSl/TLS.

USER.** libaries changed to use the ADCD release level &SYSVER, USER.Z25D, to provide uniqueness based on ADCD release level.

Console member in PARMLIB updated to allow Health Checker messages to roll off.

Downloads of ADCD z/OS V2R5 May 2023 Edition images were made available via this website in conjunction with zPDT Version 1.8. All zPDT 1090 Software updates can be obtained for ALL zPDT Customers through Information Technology Company (ITC). Visit www.itconline.com and click on the zPDT Software Updates icon. IBM employees must obtain the zPDT 1090 SW updates from IBM Resource Link.

Currently supported IBM Software stacks for the zPDT and Download Information.

zPDT Redbooks

ISV IBM zPDT Guide and Reference
PDF (3583KB)

IBM zPDT Sysplex Extensions - 2020
PDF (2608KB)

Installing Linux for z Systems on zPDT
PDF (1655KB)


The use of the z/OS and z/VM IBM Software stacks (also known as ADCD) for zPDT systems are restricted to qualified PartnerWorld Independent Software Vendors (ISVs) who are active participants in the IBM Z Developer Discount Program (zDD) and are licensed to use the z Personal Development Tool (zPDT) system.

The IBM Software stacks and associated downloads are licensed to the specific system by zPDT machine type/model serial number and cannot be transferred to any other machine. The Programs provided in the IBM Software stacks and associated downloads, are owned by IBM or an IBM supplier, and are copyrighted and licensed, not sold. Use of the products provided in the IBM Software stacks and associated downloads, are subject to the terms and conditions of the IBM Customer Agreement (ICA) - Attachment for Developer Discount - z System, and associated Addendum, the individual product licenses, and the associated Application Developers Controlled Distribution (ADCD) License Agreements for each IBM Software stack (z/OS, z/VM).

Use of the software included with the IBM Software stacks on any other system or software emulator is strictly prohibited and is in violation of the terms and conditions of the ADCD License agreements and the z System Developer Discount offering.