The first firmware update for the Nintendo 3DS was released yesterday. This update brings some new features and improves the system's stability. See below for a detailed list of changes in this update.
Google Translation
● Improved system stability
More comfortable way to enjoy, and will improve the overall stability of the system.
● Since when updating communications capabilities
We extend some of the ability to receive data, such as Oshirase.
● Improved network connectivity
And other wireless Internet access in some Nintendozon, sometimes can not communicate it made measures.
● "3D images of live music," added
Delivering music is "Super Mario Brothers Theme" in, O. Kondou Hiroshi was responsible for the Super Mario series composer (piano), is played by studio musicians
It has been confirmed that this update doesn't block the flashcards that were already running on the 3DS.
Source-
Nintendo