After filing via TurboTax Online, I need to amend 2020 tax -- how to download the Desktop version?

I used Online TT to file the 2020 taxes, and now need to amend, which requires some form adjustments which can only be done in Desktop. Under Amend options, I can download TurboTax Desktop 2019 and earlier, but not TT 2020. Is the Download functionality coming soon?

(I realize that TT Desktop is available for *purchase*, but I was expecting to be able to amend without paying again, since I already paid for it when I filed originally)

Thanks!

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