Plug-In Upgrade Considerations

To upgrade from an existing version of a plug-in to a newer version of a plug-in, you provide a patch JAR file that contains only the contents needed for the patch . For example, if you only changed two component types between version 1.2 and version 1.3, then your upgrade patch would contain only those new component type XML files. Define your patch so that it can be applied in series to upgrade multiple versions . For example, to upgrade from version 1.0 to version 1.2, a user would first apply the upgrade from 1.0 to 1.1, then apply the upgrade from version 1.1 to version 1.2. Update patches are strictly additive with respect to the previously loaded version of the plug-in. You can also create a patch that would upgrade from a specific existing version (for example, 1.0) to a specific newer version (for example, 1.3). However, you cannot create a patch to upgrade from any arbitrary version to a higher version.