For users with a standard setup, you can update the software directly through the system:
For those using custom firmware (CFW) and seeking the "CIA" file format: Tomodachi Life: Update 1.1 3DS (EUR/USA) CIA
Minor adjustments to ensure the game runs smoothly on all Nintendo 3DS family systems . For users with a standard setup, you can
How to Update Tomodachi Life: Living the Dream – Welcome Version For users with a standard setup