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Always check upgrade compatibility before planning an upgrade.
To upgrade the IBM Sterling B2B Integrator environment to a higher version, choose a version compatible with the existing version.
In general, you must upgrade to a version that is released after the existing version.

For example:

• • • Upgrade from v5.2.6.3_6 (release date July-2018) to v6.0.0.0 (release date August-2018) – Compatible
    • Upgrade from v5.2.6.3_9 (release date February 2019) to v6.0.0.0 (release date August-2018) – Not compatible

Note: The release date of each version is available in the Release Timeline illustration. For details on release policy, refer to Release strategy for IBM Sterling B2B Integrator and IBM Sterling File Gateway v6.0.x, v6.1.x, and v6.2.x onwards.
Refer to Sterling B2B Integrator System Requirements for detailed information on JDK versions in IBM B2B Integrator releases.

Previous Releases:

If you are on any of the following versions, you can upgrade to any of the latest versions as illustrated in the Upgrade Matrix below.

• • • 5.2.5_19 or earlier versions
    • 5.2.6.0 all versions
    • 5.2.6.1_9 or earlier versions
    • 5.2.6.2_5 or earlier versions
    • 5.2.6.3_12 or earlier versions

Upgrade Paths

The chart below lists the compatible upgrade paths for IBM B2B Integrator releases.