NC 13 - Recommendations concerning auto updates & upgrades for Ubuntu 16.04 lts

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Nextcloud version (eg, 12.0.2): 13.0.4
Operating system and version (eg, Ubuntu 17.04): Ubuntu 16.04 lts
Apache or nginx version (eg, Apache 2.4.25): Apache 2.4.18
PHP version (eg, 7.1): 7.0.30

The issue you are facing: Whether to set up auto cronjob for both updates & upgrades or just security updates? Looking for advice.

Is this the first time you’ve seen this error? (Y/N): no error. cannot find documentation on best practice.

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2

Doing only security updates.
Unattended-upgrades package
sudo apt install unattended-upgrades
Location: edit /etc/apt/apt.conf.d/50unattended-upgrades
Only configured for security updates
The results of unattended-upgrades will be logged to /var/log/unattended-upgrades.

> Unattended-Upgrade::Allowed-Origins {
>         "${distro_id}:${distro_codename}";
>         "${distro_id}:${distro_codename}-security";
> //      "${distro_id}:${distro_codename}-updates";
> //      "${distro_id}:${distro_codename}-proposed";
> //      "${distro_id}:${distro_codename}-backports";
>         "${distro_id}ESM:${distro_codename}";
> };
> 
>   "${distro_id}ESM:${distro_codename}";  (It's Canonical's Extended Security Maintenance for LTS releases after normal release end-of-life) Comment out //.

To enable automatic updates, edit/create /etc/apt/apt.conf.d/20auto-upgrades and set the appropriate apt configuration options:

> // Automatic call to run unattended security updates //
> 
> APT::Periodic::Update-Package-Lists "1";
> APT::Periodic::AutocleanInterval "7";
> APT::Periodic::Unattended-Upgrade "1";/
>

Used Guide: https://help.ubuntu.com/lts/serverguide/automatic-updates.html.en#update-notifications