: The installer will apply the updated files and patches to your current installation.

For those experiencing the "User Data Directory" error (common after updates), you can often fix it by deleting the localthumbcache.package file in your Documents\Electronic Arts\The Sims 4 folder or by ensuring your Game\Bin folder has the latest crack files from the NoOrigin or CODEX folder provided in the setup.

In the world of repacks, "Setup Files Only" or "Update Only" installers are smaller packages that contain only the data changed in the latest patch (e.g., the Life & Death Expansion or a bug-fix update).