A ver si lo hago bien, para ver la version que tienes he seguido estos pasos
  
 1.- Acerca de este Mac
 2.-Mas informacion
 3.-Hardware
 4.-Bluetooth
 Y aqui entre todos los dispositivos enlazados veo : AppleWirelessKeyboard…Versión del firmware: 68
Por otro lado del enlace que nos ha pasado Tuti copio y pego:
Additional Information
Follow these steps to determine if the update has already been applied to a wireless keyboard:
Choose About this Mac from the Apple () menu.
Click More Info... This will open System Profiler.
In the Hardware section of System Profiler, select Bluetooth.
Locate the keyboard in the list of Bluetooth devices.
Look in the Firmware Version field: If the version number is 321, the keyboard has been successfully updated.
Follow these steps to determine if the update has already been applied to a wired keyboard:
Choose About this Mac from the Apple () menu.
Click More Info... This will open System Profiler.
In the Hardware section of System Profiler, select USB.
Locate the Apple Keyboard in the list of USB devices.
Look in the Firmware Version field: If the version number is 0.69, the keyboard has been successfully updated.
Con lo cual,¿ deberiamos acualizar los del teclado nuevo Tuti?, esperamos tu repuesta
  
 1.- Acerca de este Mac
 2.-Mas informacion
 3.-Hardware
 4.-Bluetooth
 Y aqui entre todos los dispositivos enlazados veo : AppleWirelessKeyboard…Versión del firmware: 68
Por otro lado del enlace que nos ha pasado Tuti copio y pego:
Additional Information
Follow these steps to determine if the update has already been applied to a wireless keyboard:
Choose About this Mac from the Apple () menu.
Click More Info... This will open System Profiler.
In the Hardware section of System Profiler, select Bluetooth.
Locate the keyboard in the list of Bluetooth devices.
Look in the Firmware Version field: If the version number is 321, the keyboard has been successfully updated.
Follow these steps to determine if the update has already been applied to a wired keyboard:
Choose About this Mac from the Apple () menu.
Click More Info... This will open System Profiler.
In the Hardware section of System Profiler, select USB.
Locate the Apple Keyboard in the list of USB devices.
Look in the Firmware Version field: If the version number is 0.69, the keyboard has been successfully updated.
Con lo cual,¿ deberiamos acualizar los del teclado nuevo Tuti?, esperamos tu repuesta
Saludos