If you are looking for a "patched" update, you specifically want v1.0.2 (v65536) with correct Sigpatches.
Lego City Undercover patch is out and it's 479MB : r/NintendoSwitch. lego city undercover switch nsp update patched
The LEGO City Undercover Switch case illustrates how technical inadequacy in a commercial release can accelerate piracy. The demand for “update patched” NSPs was not primarily driven by cost avoidance but by functional necessity—the unpatched game was broken. This forced the piracy scene to develop sophisticated repacking pipelines that bypass Nintendo’s update verification. If you are looking for a "patched" update,
The major patches (v1.0.1 and v1.0.2) introduced significant changes to the base game, especially for those using original physical cartridges or unpatched NSP files. lego city undercover switch nsp update patched
Switch Homebrew Hub Category: Game Updates & CFW Compatibility Estimated Read Time: 8 minutes