This update was a direct apology for the base game’s rushed third act. When installed via the latest UPD NSP, you get:
This write-up covers the update and DLC ecosystem for Sonic Frontiers Sonic Frontiers Switch NSP xin DLC -UPD-
Sonic Frontiers has received several significant updates and DLC packs since its release, most notably the "Sights, Sounds, and Speed" update and the " The Final Horizon " story expansion. This update was a direct apology for the
Do not use cheats from older versions (v1.3.0). They will crash the Final Horizon towers. Use only 1.4.1 specific codes. They will crash the Final Horizon towers
If you’re searching for "xin DLC" because you want the latest content but prefer to stay within official channels:
In essence, users searching this phrase are looking for the of Sonic Frontiers on the Switch, including all DLC, packaged as an NSP file.