IBM Support

Rational ClearCase 9.1.0



IBM® Rational ClearCase 9.1.0 is a full product download and has been made generally available on Passport Advantage. Note that ClearCase® 9.1 on Windows is now a fully 64-bit product. (ClearCase® on Linux is already 64-bit.)

Download Description

Table of Contents
Sections Description
This section provides an overview on what is new in this release with a description of any new functions or enhancements when applicable.
This section provides information related to the impact of this release to allow you to assess how your environment may be affected.
This section provides important information to review prior to the installation of this release.
This section provides the direct link to obtain the download package for installation in your environment.
This section provides the installation instructions necessary to apply this release into your environment.
This section contains a link to the known problems (open defects) identified at the time of this release.
Supporting Documentation
Document Description
Click to review the detailed system requirements information for a complete list of hardware requirements, supported operating systems, prerequisites and optional supported software, with component-level details and operating system restrictions.
The knowledge center provides you with user assistance for the product. You can view, browse, and search online information related to the product. You can also visit IBM Product information page to browse for additional knowledge centers.
Click to review a complete list of the defects (APARs) resolved in this release including a list of resolved defects for the entire version family.

TestFixes included and excluded in this Fixpack

Technote 545165 lists TestFixes that are included in this release, as well as those that have not been incorporated into this release.


IBM Installation Manager 1.8.6 or later fix packs, or IBM Installation Manager 1.9.1 or later fix packs.

Installation Instructions

Installation instructions can be found in the IBM® Knowledge Center.

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Download Package

Download options
Access type Description
Passport Advantage Passport Advantage and Passport Advantage Express clients are required to sign in to download the software package.
IBM OEM software IBM® Software Group OEM offerings are designed for partners who develop and sell business solutions with embedded or bundled IBM® middleware software. Clients with Flexible Contract Type (FCT) license purchases and IBM® Business Partners must sign in to download the software package.

How critical is this fix?

Impact Assessment
Impact Description
This release is a service release for Rational ClearCase. It contains new features as well as fixes for client-reported and internally found defects. Note that ClearCase® 9.1 on Windows is now a fully 64-bit product. To learn how to migrate to 64-bit ClearCase® 9.1 from 32-bit ClearCase®, see technote 6339709.

Problems Solved

Click the Fix List link in the table of contents above to review a list of the problems solved in this release.

Change History

Review what's new in IBM Rational ClearCase 9.1.0 for a complete list of new features and functions.

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Technical Support

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Problems (APARS) fixed

Document Information

Modified date:
08 June 2021