Nintendo has just released a new firmware update. As denoted by the third decimal jump from 5.0.0 to 5.0.1, this update is a small one albeit something that might actually help some the Switch consoles that went ailing after the update.
Improvements Included in Version 5.0.1 (Distributed 3/26/2018)
- General system stability improvements to enhance the user’s experience
So as you can see, it is more of bug updates than features. Still, it will bring increased stability and improvements. You can find out more about the update in Nintendo’s support page here.