It is indeed problematic that the Unix history repository is missing the
Research Editions.  At the time I created it, the source code of the
Research Unix Eighth and Ninth Editions wasn't openly available.  I'm
now discussing with another member of this list for a pull request to
add them.  Incorporating them properly isn't trivial, because various
mappings are needed to establish authorship information and to allow
git-blame to work across snapshots of moved files.

Diomidis - https://www.spinellis.gr/

On 17-Jun-22 2:06, Rob Pike wrote:
> Excited as I was to see this history of Unix code in a single repository:
>
> https://github.com/dspinellis/unix-history-repo
> <https://github.com/dspinellis/unix-history-repo>
>
> it continues the long-standing tradition of ignoring all the work done
> at Bell Labs after v7. I consider v8 v9 v10 to be worth of attention,
> even influential, but to hear this list talk about it - or discussions
> just about anywhere else - you'd think they never existed.