Axios I used software center no hiccups
Thanks for letting us know. The very safest way to do an upgrade is from the terminal. Software Center is being replaced as soon as the developers can make that happen, but for now, you have a better chance of getting accurate results from the eopkg utility, which is run from the terminal. You can find all its possible functions by issuing the command, sudo eopkg --help. It has so many features that the help page can be confusing at first, but it IS the final authority.
Here's a brief list of the more important commands, and how to invoke them.
WHAT UPDATES ARE AVAILABLE: sudo eopkg lu
UPDATE MY SYSTEM: sudo eopkg up -y
INSTALL A PACKAGE: sudo eopkg it pkgname
(replace pkgname with the name of the package you want to install)
REMOVE A PACKAGE: sudo eopkg rm pkgname
(replace pkgname with the name of the package you want to remove)
REMOVE ORPHANS: sudo eopkg rmo
This one removes dependencies that are orphaned. That is, they're no longer being used by any applications or libraries. If something is later installed that needs any of these dependencies, they will be installed again, so RMO is always a safe choice.
The examples I've shown are the "short form" of the commands. Instead of "up", for instance, you could use "update". In place of "it", you could type "install" instead. The short forms just save unnecessary typing. Either form does exactly the same thing.
When you're downloading a number of large files during an upgrade, you might encounter one of more "hiccups," as you put it. At the terminal, it's a lot easier to deal with these than with Software Center. For one thing, as the download progresses, you can watch the command line, which updates with progress. It's easy to tell when there's been a server "timeout."
If that progress stops, just press <Ctrl+C> to exit the process, then press the <UP> key to return to the previous command (which should be sudo eopkg up -y), and press <Enter>. Eopkg is smart enough to advance to the point where the download timed out, and continue from there. Thus, you're able to restart the downloads like this in 2 or 3 seconds.