How to upgrade from version 2 to version 3
If you already have a license for SEO Booster PRO (v.2-series) your license was entered in the Settings page.
The new version 3 series automatically takes the old license key and converts to a new license for you. You do not need to do anything to upgrade your license.
The new license will be entered and you can see that and other account details under the SEO Booster -> Account