How does Mepis' updater work? Is it pretty much automated after you've chosen yes, I want to update?
The Panel icon will let you know there are programs that can be updated. Click on it and the enter your root password. This will open Synaptic. Click Reload. Click Mark all upgrades. Click Apply. If you have made changes to any programs in the past that are being upgraded then you need to keep the configuration file as it is. That's the default anyway.