Patrons get the next update for being a supporter, so right now they have the 2.0 update. When 2.1 releases for Patreon supporters, here in Itch.io, we'll get the 2.0 update free. Patreon supporters just get early access to the newest update, and we have to wait for it to drop. You won't have to pay for the update when it's available on Itch.io.