A new 3DS update has just been released for you to download. By downloading this newest update this will bring your system up to version 9.5.0-22.
Today's 3DS update is of little importance to the grand scheme of things, mostly providing our 3DS's with a basic stability upgrade. Nintendo says of the firmware: “Further improvements to overall system stability and other minor adjustments have been made to enhance the user experience”. So that is all nothing important but you really should go and update your system with the latest update for good measure.