That's what major versions are for. (It's still in Stretch though, so you don't have to switch to unattended-upgrades until at least ~2022. https://packages.de

That's what major versions are for. (It's still in Stretch though, so you don't have to switch to unattended-upgrades until at least ~2022. https://packages.debian.org/stretch/cron-apt https://packages.debian.org/stretch/cron-apt)