====== Ubuntu Patching ======


**apt-get** update first to get current packages available.


**apt-get upgrade** - man apt-get:- Using upgrade keeps to the rule: under no circumstances are currently installed packages removed, or packages not already installed retrieved and installed. 


**apt-get dist-upgrade**  will add or remove packages to satisfy dependancies, so dist-upgrade is more likely to fix issues with conflicting package versions.



**do-release-upgrade**  will upgrade to the latest release.