Scoop, the package manager for Windows, was Caddy ready, but kept v1 for a few months.
I confirmed this was updated to 2.0.0 a few hours ago.
Servers running Windows can easily install Caddy with this command:
> scoop install caddy
I will do this in the future and update Caddy with other apps:
> scoop update *
There is Caddy in Chocolatey, but it is very old.
I found that this situation exists not only in Caddy but in many apps. So I use Scoop.