A little less than a month from its last update, Nintendo’s hybrid console firmware still has files to download and install to ensure you have a more adequate overall experience.
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Don’t be fooled. As the Nintendo Switch updates 12.0.1 and 12.0.2 released on April 19 and May 11, respectively, 12.0.3 is working in the shadows and remains completely unclear on the changes made.
This is what the patch notes available on Nintendo’s customer service site:
Version 12.0.3 (released June 7, 2021)
Overall console stability improvement for optimal user experience.
To update your Nintendo Switch or Nintendo Switch Lite manually, in the event that this is not for you, simply go to the Console Settings menu then the Console submenu, at the bottom of the column from the left. You will find the Update Console option there.