On Tue, Jul 21, 2009 at 08:57:01AM +0200, Harald Alvestrand wrote: > We have two possibilities: > > 1 - the update consists of revisions of *every single RFC* that > references the BSD license > 2 - some RFCs continue to carry the BSD license, even while the "real" > current license is different. > > 1 seems like a logistical nightmare. 2 seems confusing to me. Ok, this is what I was trying to understand. What you are proposing is that the licence on the code in the RFC can change restrospectively, by virtue of the Trust changing the licence they select. This scenario is exactly what inspired my first question, then. Imagine I have a product, and it is shipping. It has code taken from an RFC. The original RFC was published when the Trust used the BSD licence. Therefore, as far as I know, the code I used is under BSD licence. Suppose now that the Trust now changes the licence they use to the GPL. (I know, I know, this won't happen, &c. But there's nothing to prevent it, as far as I can tell, except community consensus. I don't know what that might be in the future.) If I understand what you want, I think there are four possibilities: a. The product I have already shipped is now suddenly covered by the GPL. It may be in violation of the licence therefore. b. The prodict I have already shipped does not change, but products I ship after the Trust changes policy are covered under the new rules. So my shipped product is BSD, and my unshipped stuff is suddenly GPL (possibly forcing me to change my product, or its licence). c. The code I used remains under the BSD because of the date I used it, but new uses of that code are under GPL (so my competitors would have to have a different licence, or version 2 of my product might have to have a different licence). d. The date the RFC was published binds the licence, so that the terms on the code embedded in the RFC change. This is equivalent to your option (2), I think, and you say its undesirable. I argue that compared to (a-c), (d) is a big win. If (d) is right, however, your option (1) isn't a problem: the RFCs that are already published don't need a new licence in them, because they stick to the old one. Therefore, the new text only gives the Trust a way around getting a new RFC published with the new licence explicitly selected by community consensus. I don't see the reason to provide that short cut. If, however, you think (a-c) are preferable, then your proposed change makes sense. If I were building a product, however, I would be very wary of using any code whose licence might change after I've shipped my code. A -- Andrew Sullivan ajs@xxxxxxxxxxxx Shinkuro, Inc. _______________________________________________ Ietf@xxxxxxxx https://www.ietf.org/mailman/listinfo/ietf