Automatic Reboot after Update

[Nachteule]

Nothing has been changed. Did you had an immediate reboot or did you get a one minute delay?

If first one, maybe you have enabled your unattended reboot feature of apt,
if latter one, this is feature since many years: A reboot (if needed) will be done if Kodi is not running after one minute

To disable this feature, please look into file /etc/default/xbian-update