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Subject: [TUHS] Re: ACM Software System Award to Andrew S. Tanenbaum for MINIX
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On Tue, 18 Jun 2024, segaloco via TUHS wrote:

[...]

> The story I've gotten is AT&T policy was to release odd-numbered 
> versions, so PWB 1.0, System III, and System V made it out into the 
> world, PWB 2.0 and Release 4.0 stayed in the labs.  In the most 
> technical sense, System IV never existed, what could've become it 
> remained a Bell System-only issue.

Thanks; I'd forgotten about AT&T's "odd-only" policy.

-- Dave