Basic guidelines on available options for upgrading from various earlier versions.
When you upgrade Unwired Server to version 2.1 ESD #3, no modifications to the earlier deployed versions of Hybrid Web Containers on the server or clients are necessary for the same functionality to operate correctly.
When you upgrade SDK clients from version 2.0 or 2.0 ESD #1 to version 2.1.x, version 2.0 and 2.0 ESD #1 clients coexist with 2.1.x on BlackBerry and Windows Mobile platforms. Workflow messages and existing version 2.0 mobile workflows remain on the clients. Native applications continue to use version 2.0 or 2.0 ESD #1 binaries and settings.
You can install Mobile Workflow applications of different versions, for example, 2.1 and 2.1 ESD #3, on the same device, but if they have the same AppID and same device ID, they cannot connect to the same Unwired Server. Mobile Workflow applications with different AppIDs installed on the same device can connect to the same Unwired Server.