What's new and changed in Watson Machine Learning

Watson Machine Learning updates can include new features and fixes. Releases are listed in reverse chronological order so that the latest release is at the beginning of the topic.

You can see a list of the new features for the platform and all of the services at What's new in IBM Software Hub.

Installing or upgrading Watson Machine Learning

Ready to install or upgrade Watson Machine Learning?

To install Watson Machine Learning along with the other IBM® Software Hub services, see Installing IBM Software Hub.
To upgrade Watson Machine Learning along with the other IBM Software Hub services, see Upgrading IBM Software Hub.
To install or upgrade Watson Machine Learning independently, see Watson Machine Learning.
Remember: All of the IBM Software Hub components associated with an instance of IBM Software Hub must be installed at the same version.

IBM Software Hub Version 5.2.2

A new version of Watson Machine Learning was released in October 2025 with IBM Software Hub 5.2.2.

Operand version: 5.2.2

This release includes the following changes:

Customer-reported issues fixed in this release

For a list of customer-reported issues that were fixed in this release, see the Fix List for IBM Cloud Pak® for Data on the IBM Support website.

Security issues fixed in this release

The following security issues were fixed in this release:

CVE-2019-10202, CVE-2019-10172

CVE-2021-37501

CVE-2022-50508, CVE-2022-50488, CVE-2022-50487, CVE-2022-50455, CVE-2022-50404, CVE-2022-29458

CVE-2023-5752, CVE-2023-53565, CVE-2023-43804, CVE-2023-2728, CVE-2023-2727

CVE-2024-7143, CVE-2024-44905, CVE-2024-43879, CVE-2024-43830, CVE-2024-37891, CVE-2024-3651, CVE-2024-35195, CVE-2024-33877, CVE-2024-33874, CVE-2024-33873, CVE-2024-32624, CVE-2024-32623, CVE-2024-32622, CVE-2024-32621, CVE-2024-32620, CVE-2024-32619, CVE-2024-32618, CVE-2024-32617, CVE-2024-32616, CVE-2024-32615, CVE-2024-32614, CVE-2024-32613, CVE-2024-32612, CVE-2024-32611, CVE-2024-32609, CVE-2024-32608, CVE-2024-32605, CVE-2024-29165, CVE-2024-29164, CVE-2024-29163, CVE-2024-29162, CVE-2024-29161, CVE-2024-29160, CVE-2024-29159, CVE-2024-29158, CVE-2024-29157, CVE-2024-28863

CVE-2025-9906, CVE-2025-9905, CVE-2025-8941, CVE-2025-8194, CVE-2025-8058, CVE-2025-6985, CVE-2025-6984, CVE-2025-6558, CVE-2025-6395, CVE-2025-6211, CVE-2025-5914, CVE-2025-58364, CVE-2025-58060, CVE-2025-58058, CVE-2025-58057, CVE-2025-58056, CVE-2025-55163, CVE-2025-53643, CVE-2025-5187, CVE-2025-5115, CVE-2025-48976, CVE-2025-48734, CVE-2025-47273, CVE-2025-43265, CVE-2025-43240, CVE-2025-43227, CVE-2025-43216, CVE-2025-43212, CVE-2025-43211, CVE-2025-38417, CVE-2025-38052, CVE-2025-37914, CVE-2025-32990, CVE-2025-32989, CVE-2025-32988, CVE-2025-32415, CVE-2025-32414, CVE-2025-31278, CVE-2025-31273, CVE-2025-30761, CVE-2025-30204, CVE-2025-30167, CVE-2025-24970, CVE-2025-22874, CVE-2025-22872, CVE-2025-22870, CVE-2025-22869, CVE-2025-22868, CVE-2025-22020, CVE-2025-21962, CVE-2025-21929, CVE-2025-21928, CVE-2025-21727, CVE-2025-1948

IBM Software Hub Version 5.2.1

A new version of Watson Machine Learning was released in August 2025 with IBM Software Hub 5.2.1.

Operand version: 5.2.1

This release includes the following changes:

New features

This release of Watson Machine Learning includes the following features:

Issues fixed in this release

The following issues were fixed in this release:

Creating an online deployment of a stored AutoAI model results in an error

Issue: After training an AutoAI model and promoting it to the deployment space, creating an online deployment of the model results in the following error: Failed to fetch pipeline-model.json.
Resolution: The issue is now fixed.

Customer-reported issues fixed in this release

For a list of customer-reported issues that were fixed in this release, see the Fix List for IBM Cloud Pak for Data on the IBM Support website.

Security issues fixed in this release

The following security issues were fixed in this release:

CVE-2016-4055

CVE-2017-18214

CVE-2021-33813

CVE-2022-50159, CVE-2022-50112, CVE-2022-49846, CVE-2022-49043, CVE-2022-24785

CVE-2023-53066, CVE-2023-52917, CVE-2023-4752

CVE-2024-58099, CVE-2024-58009, CVE-2024-57894, CVE-2024-57852, CVE-2024-56827, CVE-2024-56826, CVE-2024-56663, CVE-2024-56653, CVE-2024-56644, CVE-2024-56631, CVE-2024-56623, CVE-2024-56614, CVE-2024-56611, CVE-2024-56602, CVE-2024-56601, CVE-2024-56551, CVE-2024-56544, CVE-2024-56171, CVE-2024-54680, CVE-2024-54551, CVE-2024-54467, CVE-2024-53920, CVE-2024-53237, CVE-2024-53232, CVE-2024-53222, CVE-2024-53213, CVE-2024-53208, CVE-2024-53203, CVE-2024-53160, CVE-2024-53156, CVE-2024-53142, CVE-2024-53105, CVE-2024-52616, CVE-2024-52615, CVE-2024-52533, CVE-2024-51504, CVE-2024-50186, CVE-2024-50150, CVE-2024-50121, CVE-2024-50102, CVE-2024-47745, CVE-2024-47141, CVE-2024-45341, CVE-2024-45338, CVE-2024-45336, CVE-2024-44975, CVE-2024-44192, CVE-2024-34397, CVE-2024-25062, CVE-2024-24791, CVE-2024-24790, CVE-2024-23337, CVE-2024-12797, CVE-2024-12718, CVE-2024-12243, CVE-2024-12133, CVE-2024-10963

CVE-2025-7425, CVE-2025-7345, CVE-2025-6965, CVE-2025-6209, CVE-2025-6021, CVE-2025-6020, CVE-2025-5702, CVE-2025-5472, CVE-2025-5455, CVE-2025-54121, CVE-2025-5222, CVE-2025-5025, CVE-2025-50106, CVE-2025-50059, CVE-2025-49796, CVE-2025-49794, CVE-2025-4948, CVE-2025-4947, CVE-2025-49180, CVE-2025-49179, CVE-2025-49178, CVE-2025-49176, CVE-2025-49175, CVE-2025-48379, CVE-2025-48060, CVE-2025-4802, CVE-2025-47287, CVE-2025-4563, CVE-2025-4517, CVE-2025-4435, CVE-2025-4373, CVE-2025-4330, CVE-2025-4138, CVE-2025-40909, CVE-2025-38089, CVE-2025-37943, CVE-2025-37799, CVE-2025-37750, CVE-2025-37749, CVE-2025-37738, CVE-2025-3576, CVE-2025-32914, CVE-2025-32462, CVE-2025-32415, CVE-2025-32414, CVE-2025-32049, CVE-2025-31257, CVE-2025-31205, CVE-2025-3108, CVE-2025-30754, CVE-2025-30749, CVE-2025-30427, CVE-2025-29923, CVE-2025-2784, CVE-2025-25724, CVE-2025-25193, CVE-2025-24928, CVE-2025-24528, CVE-2025-24216, CVE-2025-24209, CVE-2025-24208, CVE-2025-24189, CVE-2025-23150, CVE-2025-22126, CVE-2025-22085, CVE-2025-21964, CVE-2025-21963, CVE-2025-21961, CVE-2025-21919, CVE-2025-21887, CVE-2025-21759, CVE-2025-21756, CVE-2025-21669, CVE-2025-21666, CVE-2025-1948, CVE-2025-1272, CVE-2025-0938, CVE-2025-0665, CVE-2025-0395

IBM Software Hub Version 5.2.0

A new version of Watson Machine Learning was released in June 2025 with IBM Software Hub 5.2.0.

Operand version: 5.2.0

This release includes the following changes:

New features

This release of Watson Machine Learning includes the following features:

Deploy your machine learning assets with new software specifications that are based on runtime 25.1: You can now deploy machine learning assets by using the new software specifications that are based on the latest 25.1 runtime.
Deploy models that are trained with Spark 3.5: You can now deploy machine learning models that were trained with Spark 3.5.
Add the discontinued Spark 3.3 software specification back to the list of available software specifications.: It is possible to add the discontinued Spark 3.3 software specification back to the list of available software specifications.

Updates

The following updates were introduced in this release:

Removal of duplicate fields from JSON responses to deployment-related API calls

Up to and including release 5.1, the API calls for creating and managing deployments returned duplicate fields in entity and metadata object fields. Starting with release 5.2, the following fields will not be included in the entity object field:

name
space_id
project_id
tags
description

To avoid disruption, you must update your code that currently handles deployment-related API responses.

For more information, see the relevant topics under Upgrading Watson Machine Learning.

Customer-reported issues fixed in this release

For a list of customer-reported issues that were fixed in this release, see the Fix List for IBM Cloud Pak for Data on the IBM Support website.

Security issues fixed in this release

The following security issues were fixed in this release:

CVE-2025-24201, CVE-2025-21785, CVE-2025-3887, CVE-2025-26597, CVE-2025-4638, CVE-2025-30427, CVE-2025-1767, CVE-2025-43859, CVE-2025-21927, CVE-2025-32914, CVE-2025-26594, CVE-2025-4948, CVE-2025-26595, CVE-2025-26599, CVE-2025-32049, CVE-2025-26598, CVE-2025-2784, CVE-2025-24216, CVE-2025-26600, CVE-2025-26596, CVE-2025-24209, CVE-2025-24208, CVE-2025-26601, CVE-2025-32913, CVE-2025-46420, CVE-2025-46421, CVE-2025-32911, CVE-2025-32050, CVE-2025-32906, CVE-2025-32053, CVE-2025-30706, CVE-2025-24928, CVE-2025-27516, CVE-2025-32907, CVE-2025-24855, CVE-2025-32052, CVE-2025-27363, CVE-2025-30714

CVE-2024-53150, CVE-2024-43855, CVE-2024-54467, CVE-2024-35195, CVE-2024-44192, CVE-2024-12797, CVE-2024-51744, CVE-2024-38581, CVE-2024-49767, CVE-2024-6827, CVE-2024-36477, CVE-2024-45337, CVE-2024-10940, CVE-2024-50302, CVE-2024-40635, CVE-2024-53197, CVE-2024-26130, CVE-2024-9632, CVE-2024-54551, CVE-2024-53113, CVE-2024-12088, CVE-2024-4453, CVE-2024-12910, CVE-2024-12747, CVE-2024-56171, CVE-2024-55549, CVE-2024-12087, CVE-2024-8184, CVE-2024-47541, CVE-2024-47600, CVE-2024-49766, CVE-2024-47542, CVE-2024-8176, CVE-2024-12911, CVE-2024-22201, CVE-2024-7254, CVE-2024-21217, CVE-2024-47835, CVE-2024-0444, CVE-2024-21235

CVE-2023-53025, CVE-2023-29483, CVE-2023-53021

CVE-2022-49180, CVE-2022-4899, CVE-2022-49376

Deprecated features

The following features were deprecated in this release:

Removal of Federated Learning: The Federated Learning feature is not available anymore.