On 2016/06/04 14:12, Raf Czlonka wrote: > I always let it finish without any ill effects - there's plenty of > packages which update just fine (shell, Perl, etc.).
The problem comes when you have some libraries updated and others not updated. When there are inter-library dependencies, in some cases you can now have two incompatible versions of the library loaded at once which can cause crashes and other damage.
