Release notes state that the R3 is supported.
Edit: so it seems that you can't get it from the the canon-europe site, but you can get it from the canon.dk site.
@Canon Rumors Guy
@neuroanatomist
EOS R3 - Canon Europe
Download drivers, software, firmware and manuals for your Canon product and get access to online technical support resources and troubleshooting.
www.canon-europe.com
Edit: so it seems that you can't get it from the the canon-europe site, but you can get it from the canon.dk site.
@Canon Rumors Guy
@neuroanatomist
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