You have accessed an older version from the plugin drop down menu. Notice how the “product,” even though has been updated in Topaz Studio, your older version will still appear in the plugin drop down menu. For those of you that prefer the older version can use that version from the plugin drop down menu while they used to the Topaz Studio version.
So in short, if the “product” is asking for a license key then you are accessing the older, outdated version. The latest version will be under the specialty tab.