On Wed, Mar 15, 2023 at 3:56 PM steve jenkin <sjenkin@canb.auug.org.au> wrote:
"What “uses” would SysV codebase have now?" may be a better Q.

A System V release 2 might have very limited use (old VAXen are all it ran on from
AT&T though there were at least a few ports: 68k for sure).

The successor code base of OpenIndiana which forked from OpenSolaris which was System Vr4 plus a bunch... And that's open... illumos is still using that for its distribution... They'd have been totally dead, imho, were it not for OpenZFS using illumos for so long as the reference platform (that's changed, so now Linux and FreeBSD are the reference platforms, though one of those two is more equal than the other).

But the successor code base being open isn't quite the same as System V being open. There's no 'orphan exception' or 'abandonware rider' that would allow us to distribute this without any legal risk.

But there's the rub: what's the legal risk. The legal risk here is that somebody could show up and assert they have rights to the software, and that we're distributing it illegally. Actual damages likely are near $0 these days, but statutory damages could become quite excessive. But to get damages, one would likely need a lot of money to fight it, and there's not any kind of real revenue stream from System V today (let alone from System V r2). Plus, were this successfully prosecuted, it's not like that would increase that revenue stream: TUHS has no assets, so the current IP owner would have to somehow assess there was blood to be had from this stone, which is unlikely... So, how do you rate the risk of a low-probability, high damage outcome vs the near certainty of a no-damage outcome. Since it's none of our butt's but Warren's, he gets to decide his comfort zone here. :)

So the risk of adverse consequences is likely low, but not zero were we to distribute this without a license to do so. There's plenty of others that are doing so today, but that's between the others and whatever IP owners 

Disclaimer: I'm not a lawyer, and this isn't legal advice...