Great question — answering as the UphillTech team:
The command you are looking for is: sudo apt-get upgrade this will upgrade all the packages installed in your system to the newest version. Don't try sudo apt-get dist-upgrade unless you know what you are doing as it can install or remove packages while upgrading. -- Edit bz -- To upgrade you first run sudo apt-get update This updates the list of available packages. You then run sudo apt-get upgrade or sudo apt-get dist-upgrade For additional information see the man page https://help.ubuntu.com/community/AptGet/Howto
Full answer by heemayl: https://askubuntu.stackexchange.com/a/584297 (CC BY-SA 4.0).
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