Nintendo has dispatched a brand-new system update for Nintendo Switch, which is now available for download worldwide. Official patch notes for the latest update version from the development team are as follows:
Nintendo constantly aims to improve the functionality of its systems and services in order to provide the easiest, most user-friendly experience possible. As a part of these efforts, we are making Nintendo Switch system updates available for download via the Internet.
Performing the System Update:
In most situations, the Nintendo Switch will automatically download the most recent system update while it is connected online. You can verify your current menu version and manually start the update from the System Settings menu if necessary.
If you are unable to perform the system update, restart your console and try again.
Ver. 10.0.4 (Released June 4, 2020)
Fixed the following issue:
We have fixed the issue where it was not possible in some countries or regions to add funds using a new credit card or to register credit card information in Nintendo eShop on Nintendo Switch.
Source: Nintendo Support