[R-sig-Debian] c2d4u3.5 ppa for Ubuntu 20.04?

[Matthieu S]

Hi

I tried to use Michael's ppa after having installed Ubuntu 20.04 and R 4,
and it seems the ppa is not available now for 20.04, I get message: The
repository 'http://ppa.launchpad.net/marutter/c2d4u3.5/ubuntu focal
Release' does not have a Release file

Am I doing something wrong, or is it correct that it is not available yet?
Are there any plans to implement it at some point?

Thanks!!

Matthieu

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