Everything can be updated. Download the latest software, hook up your device and – bang! – your EEPROM gets the latest.
An issue that, in some rare situations, caused the battery indicator to blink with shooting, regardless of actual battery charge status, has been resolved.
In spite of the headlong rush to design new cameras, it’s nice to know companies like Nikon can take a few minutes to fix bugs. Just shows you how much software rules the world.