This guide takes you through the steps for migrating few of the most used products from their older version to newer versionsThe followings steps describe how to upgrade from an older version of WSO2 ESB to the current version. E.g., Product versions based on Carbon 4.0.0 to newer versions based on Carbon 4.1.0 or 4.2.0. For more information on release versions, see the Release Matrix.
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