Download
Abstract
Download the latest IBM MQ 9.1.0 LTS release from Passport Advantage, Fix Central, or (for z/OS systems) the ShopZ website. You can download the base install image, and/or apply the latest fix pack or CSU.
Download Description
The latest IBM MQ 9.1.0 LTS maintenance release is IBM MQ 9.1.0.34 (LTS CSU).
For updates to IBM MQ 9.1, you choose between Long Term Support (LTS) and Continuous Delivery (CD) releases. LTS is for systems that demand the highest levels of stability. LTS maintenance releases contain fixes to identified problems and vulnerabilities, and do not add new function. For more information, see the IBM MQ FAQ for Long Term Support and Continuous Delivery Releases.
LTS maintenance releases are delivered concurrently on Multiplatforms, z/OS, and the MQ Appliance. For IBM MQ 9.1 LTS, Multiplatforms refers to AIX, IBM i, Linux, Solaris, and Windows. From IBM MQ 9.2.0, Solaris is no longer a supported platform.
From 1Q 2023, there are two types of LTS maintenance release; Fix packs and Cumulative security updates (CSUs):
- Fix packs contain roll-ups of all defects fixed since the previous maintenance release or GA.
- CSUs contain security patches released since the previous maintenance release or GA.
- Both types of maintenance update the F-digit of the VRMF to a higher number than any previous maintenance.
- Both types of maintenance are mutually cumulative, from the initial release. You can apply any higher numbered fix pack or CSU of the same version/release to upgrade directly to that version level. You do not have to apply the intervening fixes.
For more information, see Changes to IBM MQ's maintenance delivery model.
For a given platform, both types of maintenance are downloaded and installed using the same mechanism: Multiplatforms and IBM MQ Appliance use the fix pack delivery mechanism, and z/OS uses PTFs. For UNIX System Services features (that is, JMS and WEB UI, Connector Pack, and Managed File Transfer) the z/OS PTFs are aligned directly with the Multiplatforms fix packs and CSUs. Other PTFs are made available as and when they are produced.
Fix Pack 9.1.0.9 and earlier also included fixes for the IBM MQ Appliance. However, support for the IBM MQ 9.1 Appliance firmware ended in September 2021, and subsequent fix packs do not include firmware updates for IBM MQ 9.1 on the Appliance. For the IBM MQ Appliance support schedule, see https://www.ibm.com/support/pages/lifecycle/search/?q=mq%20appliance.
For a history of IBM MQ 9.1.0 LTS releases, their release types, and details of the fixes that were delivered in each release, see Fix list for IBM MQ Version 9.1 LTS.
A trial version of the LTS release, for each of the last two IBM MQ major versions, is available for download here.
Images for the earlier releases that are listed in the following sections might no longer be available.
Document Location
Worldwide
Product Synonym
WMQ MQ
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Document Information
Modified date:
26 February 2026
UID
ibm17116605