As an owner of a previous version you have received an email with an upgrade coupon.
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We will contribute 1% of your purchase to remove CO₂ from the atmosphere.
Request an upgrade discount coupon for Mountain Duck 4. Licenses sold on or after 1 May 2020 are eligible for a free upgrade. Licenses sold on or after 5 May 2020 are already valid for Mountain Duck 4 and do not require an upgrade.