In this release, you can migrate your installed applications and profile configurations from prior versions of IBM® WebSphere® ESB to WebSphere ESB version 6.2 using version-to-version migration tools. Version-to-version migration requires that you install the new version of the product alongside the older product, then run migration tools to migrate the existing applications and configurations to the new product. You cannot use updates (in-place upgrades) to migrate from previous releases to WebSphere ESB version 6.2.