Not true. Just try 'man aptitude'.
From aptitudes man page
Upgrades installed packages to their most recent version. Installed
packages will not be removed unless they are unused (see the section
“Managing Automatically Installed Packages” in the *aptitude*
reference manual). Packages which are not currently installed may be
installed to resolve dependencies unless the *--no-new-installs*
command-line option is supplied
While it wasn't totally accurate it is reality that it will NOT remove
packages. Also the phrase "Packages which are not currently installed MAY
be installed to resolve dependencies ..." Does not say they WILL be
installed. Apt is not perfect and I have seen instances where packages that
are not removed cause problems I have also seen cases where dependency
issues are not resolvable easily so nothing new is installed.
Anyway your initial question is not actually a question instead it is a
statement so I am wondering what your point really is.
On 22 May 2014 21:07, Aleksey Midenkov <midenok(a)gmail.com> wrote:
> On Wed, May 21, 2014 at 2:22 PM, Michael . <keltoiboy(a)gmail.com> wrote:
> > safe-upgrade only upgrades packages that don't require any new packages
> to
> > be installed or any old ones to be removed.
>
Not true. Just try 'man aptitude'.
>
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