amd64 bsd.rd for 7.0, 7.1, 7.2

[Quentin Carbonneaux]

Hi,

I want to upgrade an amd64 system running 6.9. Following
the guide I would like to upgrade to 7.{0,1,2,3,4,5}
sequentially. However it looks like

    wget https://cdn.openbsd.org/pub/OpenBSD/7.{0,1,2}/amd64/bsd.rd

returns 404 for all three queries.

Where can I find the bsd.rd images for these versions?

Thanks for your help.