Unix v4 Tape Found 2 days ago (discuss.systems) 3 comments greatquux Reply Add to library lproven 20 minutes ago Anyway, since nobody much seems to realise this is quite a big deal, I will share the explainer I wrote yesterday:https://www.theregister.com/2025/11/07/unix_fourth_edition_t...Unix V4 is otherwise lost. It was the first version in C. lproven 21 minutes ago Other posts on this subject, none with discussion:https://news.ycombinator.com/item?id=45842643 sema4hacker 2 days ago From 1973. See https://en.wikipedia.org/wiki/List_of_Unix_systems
lproven 20 minutes ago Anyway, since nobody much seems to realise this is quite a big deal, I will share the explainer I wrote yesterday:https://www.theregister.com/2025/11/07/unix_fourth_edition_t...Unix V4 is otherwise lost. It was the first version in C.
lproven 21 minutes ago Other posts on this subject, none with discussion:https://news.ycombinator.com/item?id=45842643
Anyway, since nobody much seems to realise this is quite a big deal, I will share the explainer I wrote yesterday:
https://www.theregister.com/2025/11/07/unix_fourth_edition_t...
Unix V4 is otherwise lost. It was the first version in C.
Other posts on this subject, none with discussion:
https://news.ycombinator.com/item?id=45842643
From 1973. See https://en.wikipedia.org/wiki/List_of_Unix_systems