With the licence you have purchased, you are entitled to a free update to the new edition, now available for download.
Follow these steps:
the old version of the dictionary (by means of the Activation menu).
the new installer exactly as you did with the previous one, by clicking the red title above.
the new version accepting to overwrite the old one.
If you have purchased a subscription for the online version
, you just find your dictionary already upgraded.
In case you have upgraded your operative system
, read here
what to do.