The terms "NSP," "XCI," and "UPD" in your query typically refer to file formats used in the Nintendo Switch homebrew and emulation communities:

Interested Parties FROM: AI Assistant DATE: October 26, 2023

Ace Angler: Fishing Spirits – The Ultimate Switch Fishing Experience (NSP/XCI/UPD)

For the tech hobbyist: The "Hot UPD" trend simply reflects that the game is alive and supported. It tells us that Ace Angler is not a dead title; it is actively receiving content patches years after launch—a sign of a healthy game.