DecentExposure

1. Download F-Z6-V201M.dmg.
2. Double-click the F-Z6-V201M.dmg icon to mount a disk image containing a folder named “Z6Update”, which in turn contains the following file:
   • Z_6_0201.bin (the camera firmware)
3. Using an XQD card reader, copy “Z_6_0201.bin” to a memory card that has been formatted in the camera.
   Note: Be sure to copy the firmware to the root (top-most) directory of the memory card. The camera will not recognize the new firmware if it is placed in a folder under the root directory.
4. Insert the memory card into the camera and turn the camera on.
5. Select Firmware version in the SETUP MENU and follow the on-screen instructions to complete the firmware update.
6. Once the update is complete, turn the camera off and remove the memory card.
7. Confirm that the firmware has been updated to the new version.

Note: For detailed instructions or information on the equipment needed to complete the update, download the following pdf file:
Z-series_FirmUp_Mac_En.pdf (PDF) (0.25 MB)

Note: Updates can be performed for you by a Nikon-authorized service representative.

The only thing that I know of is that it referred to never again sustaining an attack by a foreign military power on the soil of this country. 

Thanks for all of your replies. It helps in the decision making process.

I've had the 5300 for three years, but have only used it for a couple of months. Been dealing with some health issues that kept me sidelined for a couple of years.