enhance https://support.torproject.org/apt/tor-deb-repo/ for unattended upgrades
Maybe explain how to change /etc/apt/apt.conf.d/50unattended-upgrades too to get the latest Tor (or whatever else is needed) too?
At a stable Debian image here Tor stayed at 0.4.3.5 (from the Debian repository) although the Tor repository contained 0.4.4.6.
FWFW /etc/apt/sources.list contains:
"origin=Debian,codename=${distro_codename}";
"origin=TorProject";
};
but that seems not to be sufficient to upgrade Tor when 0.4.4.6 when it appeared in the Tor repository.