What's new and changed in Db2

Db2 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 Db2

Ready to install or upgrade Db2?

  • To install Db2 along with the other IBM® Software Hub services, see Installing IBM Software Hub.
  • To upgrade Db2 along with the other IBM Software Hub services, see Upgrading IBM Software Hub.
  • To install or upgrade Db2 independently, see Db2.
    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 5.4.0

A new version of Db2 was released in June 2026 with IBM Software Hub 5.4.0.

Operand version: 5.4.0

This release includes the following changes:

New features
This release of Db2 includes the following features:
Accelerate AI workloads with IBM Db2 12.1.5
You can now run AI-driven workloads more efficiently with the Db2 service on IBM Software Hub. This service is built on IBM Db2 12.1.5, which includes advanced vector processing and index-based acceleration to speed up similarity searches in both traditional and containerized environments.
Issues fixed in this release
The following issues were fixed in this release:
Database creation workflow fails in non-English browser languages

When using the IBM Software Hub web client in a non-English browser language (for example, Spanish), the database provisioning flow cannot be completed. On the Credentials page in the Cloud Pak for Data UI, selecting Create Secret from Vault does not display the required drop-down fields to choose a secret.

Security issues fixed in this release
The following security issues were fixed in this release:

CVE-2026-42044, CVE-2026-42043, CVE-2026-42041, CVE-2026-42039, CVE-2026-42038, CVE-2026-42037, CVE-2026-41305, CVE-2026-40895, CVE-2026-40175, CVE-2026-35206, CVE-2026-34043, CVE-2026-33750, CVE-2026-33672, CVE-2026-33671, CVE-2026-33228, CVE-2026-33186, CVE-2026-32141, CVE-2026-31802, CVE-2026-29786, CVE-2026-29111, CVE-2026-29063, CVE-2026-27904, CVE-2026-27903, CVE-2026-26996, CVE-2026-26960, CVE-2026-25639, CVE-2026-24842, CVE-2026-24001, CVE-2026-23950, CVE-2026-2391, CVE-2026-23745, CVE-2026-22701, CVE-2026-4867, CVE-2026-4786, CVE-2026-6100

CVE-2025-68146, CVE-2025-64756, CVE-2025-64718, CVE-2025-62718, CVE-2025-58190, CVE-2025-58181, CVE-2025-47914, CVE-2025-47911, CVE-2025-14512, CVE-2025-14087, CVE-2025-13465

CVE-2024-57699