IBM Support

Prerequisites and Maintenance for Machine Learning for IBM z/OS

Release Notes


Abstract

Hardware and software requirements for installing Machine Learning for IBM z/OS on IBM z.

Content

Machine Learning for IBM z/OS Enterprise Edition is an enterprise machine learning solution that runs on IBM® Z. You can run ML for z/OS as a stand-alone solution or infuse it into your enterprise AI capability as a scalable platform.
 
Machine Learning for IBM z/OS Core Edition is a lightweight version of MLz providing the essential services that are REST-API-based for machine learning operations including online scoring capabilities on IBM Z. Primarily aiming for AIOps use cases through AI solutions offered by IBM or IBM partners.
 

What's New in version 3.2.0

 
  • Support multi-user model development environment leveraging JupyterHub.
  • Enhanced trustworthy AI capability through improved monitoring configuration and intuitive visualization of explainability results.
  • New capability in the Trustworthy AI component to continuously monitor and detect drift in the data distribution of model inputs and outputs, ensuring the model remains accurate and reliable.
  • Support multi-class classification model scoring leveraging the on-chip AI accelerator of IBM z16 through Snap ML.
  • Utilize Spark libraries as external dependencies for the scoring server to reduce the installation footprint.
  • Support IBM Semeru Runtime Certified Edition for z/OS, Version 17, the latest release of Java SDK on z/OS.
  • Support for z/OS Spark 3.5.0.
  • Support IBM Z Deep Learning Compiler (IBM zDLC) 4.2.0 for ONNX model compilation and scoring.
  • Provide the up to date machine learning support for AI Python packages on z/OS.
  • Support multi-class classification model scoring leveraging the on-chip AI accelerator of IBM z16 through Snap ML.
  • Utilize Spark libraries as external dependencies for the scoring server to reduce the installation footprint.
  • Support IBM Semeru Runtime Certified Edition for z/OS, Version 17, the latest release of Java SDK on z/OS.
  • New option of configuring a RACF® keyring-based keystore with hardware private key for user authentication and SSL/TLS communication
  • Enhancement in support of issuing console messages to reflect when the core and scoring services have started, ended, or encountered an error
  • Enhancement to drift-related output under Trustworthy AI
  • Enhancement in support of integration with watsonx.ai and watsonx.governance
  • Enhancement in support of online scoring timeout for PMML models
  • Enhancement to Trustworthy AI in support of ONNX drift and exporting drift results as a PDF
  • Dual control enhancement to enable an extra layer of security for online deployment changes
  • Enhancement in support of Serving ID that enables inferencing using a user-provided ID in place of the auto-generated deployment ID
  • Enhancement in support of Scoring service IP binding
  • Support for the  z17 Telum II on-chip AI accelerator

 

What's New in version 3.1.0

 
  • New ability to explain and understand the decisions made by AI models utilizing the MLz built-in Trustworthy AI capabilities.
  • Integrate Snap ML library for high speed training and inferencing of popular machine learning models on z/OS, leveraging the on-chip AI accelerator of IBM z16.
  • Provide the up-to-date machine learning support for Apache Spark and AI Python packages on z/OS.
  • Improve the experience of product configuration and offer different configuration options through WMLz Configuration Tool for both WMLz Core edition and WMLz Enterprise edition.
  • Incorporate the inferencing support for Watson Core time-series models.
  • Provide the built-in metadata database option for repository service.
  • Integrate the Jupyter Notebook server for model training to leverage the integrated Apache Spark runtime and Python runtime on z/OS.
  • Enhance the documentation for WMLz services REST APIs.
  • zIIP eligibility for Python model training and scoring.
  • AT-TLS support for configuration tool, scoring service and Jupyter notebook server for strengthened TLS communication between WMLz services and your client applications.
  • Enhanced error handling of the CICS and WOLA scoring interfaces, which enable COBOL applications to retrieve the scoring error code and error message through pre-defined output variables.
  • Make the WOLA server name customizable, which enables a flexible deployment and application management for a scoring cluster configuration with instances across multiple LPARs.
  • Message ID and content standardization for services and UI.
  • Support IBM Z Deep Learning Compiler (IBM zDLC) 4.1.1 for ONNX model compilation and scoring.
  • Support z/OS Spark 3.2.4.2.

 

Maintenance Level

MLz maintenance level
APAR/PTF for IBM Z
Machine Learning for IBM z/OS Core Edition V3.2
2025 Nov

APAR PH68837/PTF UO05782

2025 Aug

APAR PH67684/PTF UO04511

2025 Jul
APAR PH66196/PTF UO04081
APAR PH66213/PTF UO04082
APAR PH66214/PTF UO04083
 
2025 Mar
APAR PH64998/PTF UO02576
APAR PH65690/PTF UO02574
APAR PH65691/PTF UO02575
 
2024 Dec
APAR PH61600/PTF UI99430
APAR PH64473/PTF UI99431
APAR PH64474/PTF UI99432
Machine Learning for IBM z/OS Enterprise Edition V3.2
2025 Nov
APAR PH68837/PTF UO05783
APAR PH68898/PTF UO05784
 
2025 Aug

APAR PH67684/PTF UO04512

2025 Jul
APAR PH66196/PTF UO04084
APAR PH66213/PTF UO04085
APAR PH66214/PTF UO04086
APAR PH66215/PTF UO04087
APAR PH66216/PTF UO04088
APAR PH66217/PTF UO04089
 
2025 May
APAR PH66197/PTF UO03447
APAR PH66786/PTF UO03448
 
2025 Mar
APAR PH64998/PTF UO02579
APAR PH65690/PTF UO02577
APAR PH65691/PTF UO02578
APAR PH65790/PTF UO02580
APAR PH65791/PTF UO02581
 
2024 Dec
APAR PH61600/PTF UI99433
APAR PH64473/PTF UI99434
APAR PH64474/PTF UI99435
APAR PH64475/PTF UI99436
Machine Learning for IBM z/OS Core Edition V3.1
2025 Apr
APAR PH65296/PTF UO02695
APAR PH65947/PTF UO02696
APAR PH65948/PTF UO02697
APAR PH65949/PTF UO02698
 
2024 Oct
APAR PH63631/PTF UI98777
APAR PH63676/PTF UI98778
APAR PH63677/PTF UI98779
APAR PH63678/PTF UI98780
 
2024 Jun
APAR PH61497/PTF UI97356
APAR PH61549/PTF UI97357
APAR PH61550/PTF UI97358
 
2023 Dec
APAR PH58052/PTF UI94919
APAR PH58544/PTF UI94920
APAR PH58545/PTF UI94921
 
2023 Oct
APAR PH57527/PTF UI94159
APAR PH57746/PTF UI94160
APAR PH57747/PTF UI94161
 
2023 Sep
APAR PH56809/PTF UI93788
APAR PH56840/PTF UI93789
APAR PH56841/PTF UI93790
 
2023 Aug
APAR PH55628/PTF UI93000
APAR PH55968/PTF UI93001
APAR PH55969/PTF UI93002
 
2023 Jun
APAR PH55059/PTF UI92254
Machine Learning for IBM z/OS Enterprise Edition V3.1
2025 May
APAR PH66198/PTF UO03327
APAR PH66602/PTF UO03328
 
2025 Apr
APAR PH65296/PTF UO02699
APAR PH65947/PTF UO02700
APAR PH65948/PTF UO02701
APAR PH65949/PTF UO02702
APAR PH65950/PTF UO02703
 
2024 Oct
APAR PH63631/PTF UI98781
APAR PH63676/PTF UI98782
APAR PH63677/PTF UI98783
APAR PH63678/PTF UI98784
APAR PH63689/PTF UI98785
 
2024 Jun
APAR PH61497/PTF UI97359
APAR PH61549/PTF UI97360
APAR PH61550/PTF UI97361
 
2023 Dec
APAR PH58052/PTF UI94922
APAR PH58544/PTF UI94923
APAR PH58545/PTF UI94924
APAR PH58546/PTF UI94925
APAR PH58547/PTF UI94926
 
2023 Oct
APAR PH57527/PTF UI94162
APAR PH57746/PTF UI94163
APAR PH57747/PTF UI94164
 
2023 Sep
APAR PH56809/PTF UI93791
APAR PH56840/PTF UI93792
APAR PH56840/PTF UI93793
 
2023 Aug
APAR PH55628/PTF UI93003
APAR PH55821/PTF UI93004
APAR PH55968/PTF UI93005
 
2023 Jun
APAR PH55059/PTF UI92255

 

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Document Information

Modified date:
20 November 2025

UID

ibm17003489