The vCenter Server API provides operations that can help you plan the life cycle of vCenter Server instances in your environment.
You can use the operations to discover VMware products that can be associated with vCenter Server, list associated products, and manage product associations. You can also get details about available vCenter Server updates, perform pre-checks, and produce reports. The reports can contain interoperability or pre-check information. Interoperability reports contain information about the interoperability between the associated products and a specific vCenter Server version. Pre-check reports contain information about the compatibility of the current vCenter Server version with a pending update version. You can plan to perform vCenter Server updates based on the information gathered in the produced reports.