MacOS X is Unix (tm) - TUHS

31 Dec 2016

...
  On Dec 31, 2016, at 8:58 AM,
tuhs-request(a)minnie.tuhs.org wrote:

 From: Michael Kjörling &lt;michael(a)kjorling.se&gt;
 To: tuhs(a)tuhs.org
 Subject: Re: [TUHS] Historic Linux versions not on kernel.org
 Message-ID: &lt;20161231111339.GK576(a)yeono.kjorling.se&gt;
 Content-Type: text/plain; charset=utf-8

 I might be colored by the fact that I'm running Linux myself, but I'd
 say that those are almost certainly worth preserving somehow,
 somewhere. Linux and OS X are the Unix-like systems people are most
 likely to come in contact with these days 
MacOS X is a certified Unix (tm) OS. Not Unix-Like.

http://www.opengroup.org/openbrand/register/apple.htm

It has been so since 10.0. Since 10.5 (Leopard) it has been so noted on the above Open
Group page. The Open Group only lists the most recent release however.

The Tech Brief for 10.7
(http://images.apple.com/media/us/osx/2012/docs/OSX_for_UNIX_Users_TB_July20…) also
notes the compliance.

	David