vadi  ~  sudo apt update && sudo apt full-upgrade
[sudo] password for vadi: 
Hit:1 http://ftp.nluug.nl/os/Linux/distr/ubuntu artful InRelease
Hit:2 http://ftp.nluug.nl/os/Linux/distr/ubuntu artful-updates InRelease       
Hit:3 http://archive.canonical.com/ubuntu artful InRelease                     
Hit:4 http://security.ubuntu.com/ubuntu artful-security InRelease              
Reading package lists... Done
Building dependency tree       
Reading state information... Done
All packages are up to date.
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Calculating upgrade... Done
0 to upgrade, 0 to newly install, 0 to remove and 0 not to upgrade.
 vadi  ~ 