Hello!
I have Dorico pro 3.5. Can i update it to 4? When i try to do it, it says no licence found.
Yes you can. Provided you pay 99.99$/€ to get the upgrade! You’ll receive a download access code (DAC) that you will paste into the Steinberg Download Assistant (SDA) in the upper left corner, and everything will go smooth 
Of course, if you bought Dorico 3.5 between August 25 2021 and January 2022, you’ll be eligible for a free upgrade, as part of the grace period.
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