SPSUpdate is a PowerShell tool that installs SharePoint Server cumulative updates and runs the post-setup Configuration Wizard (PSConfig) across a farm. It installs the binaries, mounts/upgrades content databases in parallel, runs PSConfig on local and remote servers over CredSSP remoting, and configures the side-by-side token for zero-downtime patching.
Compatible with SharePoint Server Subscription Edition. Requires PowerShell 5.1 or later — no DSC module needed.
SharePoint Server 2016 and 2019 reached end of support on 14 July 2026. If you still run those versions, use the previous major release v4.2.0 — including to generate the ContentDatabase inventory (
-Action InitContentDB) on a 2019 source farm during a 2019 → Subscription Edition migration.