I got a shiny blue light on my 3DS.
It was a 5 seconds long update. I have now version 7.1-15E.
Does somebody know, what has changed?

System stability from what I can gather

http://translate.google.com.au/translate?hl=en&sl=fr&...

We already have a thread here: http://www.nintendolife.com/forums/3ds/my_system_just_updated...