Pre-upgrade warnings and advice?

[Colin Law]

On 3 June 2014 00:15, Charl Wentzel <charl.wentzel at vodamail.co.za> wrote:
> On 02/06/2014 21:49, Neal McBurnett wrote:
>
> Ubuntu support for upgrades naturally depends on exactly what is being
> upgraded.  Use of software from outside the official Ubuntu repositories
> (PPA repositories or .deb files or tar.gz packages or the like) means
> upgrades may be more complicated for the user.
>
> It's always been my experience that when upgrading, all software that is not
> installed by default, are uninstalled and must be installed separately by
> the user after the upgrade.

I don't think that is correct.  Anything installed from the standard
Ubuntu repositories should stay installed and should automatically be
upgraded.

>  Mate would definitely fall in this category.

Since mate-desktop is in Universe then I would assume it would be
upgraded rather than uninstalled.

Colin