On Tue 13 Mar 2018 at 22:11:58 +0100, Nomen Nescio wrote: > I downloaded some Debian v.9.2.1 DVDs and I would like Not today you didn't. It's 9.4.0 now. > to know how long they are useful. In other words, how long > may I retain them as install DVDs and upgrade once it has > been installed and put on-line? For ever and ever. -- Brian.