Applying updates to your Microsoft System Center DPM server is important: updates keep your DPM server and any protected servers up to date. You may have a preferred mechanism for deploying updates; however, DPM updates are automatically available through Microsoft Update.
Microsoft System Center DPM updates for Long-Term Servicing Channel (LTSC) are available through Microsoft Update. Microsoft Update delivers these updates from the Microsoft Update Catalog, which is a repository for Microsoft software updates that is managed and maintained by Microsoft. You can download these updates automatically or manually from the following link: https://www.catalog.update.microsoft.com/Search.aspx?q=Data+Protection+Manager.