hi yes it upgrades the diablo 2.2 and diablo 2.3 to the latest diablo 2 3.9 you need a credit card or a paypal account and the price is 19 euros = £15. why did they bring out the diablo2 costing £100 when the OLD ones accept the NEW firmware.
update is to rev 4.0, not 3.9
It just their mark to denote its an upgraded diablo light