Can someone tell me which Debian release (and Ubuntu release) is the last one to not support deb packages or first release to support deb packages. I am not even sure if there are any releases like that. But if there are. I need to know.
答案1
Both Debian and Ubuntu always used DEB packages. The only change I'm aware of happened in Debian 0.93 where the DEB package format changed see deb-old manpage.