Darwin Version

[Daniel J. Luke]

On Oct 5, 2015, at 6:42 PM, Dave Horsfall <dave at horsfall.org> wrote:
> You're saying that Darwin was written from scratch and not evolved from a 
> modified FreeBSD 4.1, or am I thinking of an earlier MacOS?

it all depends on what you mean by ‘written from scratch’, ‘evolved from’, and how detailed you care to be with the history. I believe you’re either conflating 4.2BSD (1983) and FreeBSD 4.1 (2000) or you’re thinking about userspace stuff that got updated in Mac OS X (around 2000 IIRC).

see also:

https://en.wikipedia.org/wiki/History_of_Unix#/media/File:Unix_history-simple.svg

and/or 

http://www.levenez.com/unix/unix_a4.pdf

— 
Daniel J. Luke                                                                   
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