To use the upgrade version of Artisan 5 you will need to enter your activation code (also known as Product Key) from Artisan 4. To find it, open Artisan 4, and click on the Help button (top right corner of the screen), and choose About.
You will see your code listed. Copy and paste it into the relevant box in the Artisan 5 activation process.
Posted in: About Artisan 5