First - the GPLv3 was NOT drafted in an open process.
IF they had bothered to ask folks shipping GPLv2 code what they would want in a GPLv3 they would have gotten a much smaller scope. Maybe some patent improvements and some other cleanups.
The idea that they solicited developer community input around the GPLv3 in terms of what it should cover is a joke. It really is a lie basically. Yes, they solicited users and activists, but not the actual folks giving their labor away for free. So they tried to basically trick a bunch of folks by hitching onto the v2 or later standard language - using a license with very different terms - SO SKETCH!!
It really illustrates how immoral and unethical the drafters of v3 were and left a sour taste with a lot of folks.
Some folks had a heads up around what would be coming - Linus got an early look and went immediately to GPLv2 only to protect against this attempted hijacking.
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Once they did get it out - now FAR longer and harder to read, lots of special cases etc, they'd created a real problem, it was hard to work with this thing.
They kept on lying about having to release or not release encrypting / signing keys.
Ubuntu refused to use a v3 bootloader until they did some kind of backroom deal with FSF where FSF, as author of license, did some private interpretation Ubuntu could rely on. Ubuntu wasted a metric ton of time on this, and until they got the secret signoff were not going to budge (ahh, again a sign they ignored major dev communities).
I could go on, but it's not worth re-hashing. v3 basically ended GPL as the standard OSS license, I think folks are sick enough of it that MIT / Apache etc are going to be the future. Even the idealists among us learned some important lessons in the process.
I think GPLv3 and especially AGPLv3 will be the home of things like contributor licensed software to one company - it's basically unusable but they can call it "open source" sort of like Microsoft shared source stuff and then license commercially by keeping copyright in a for-profit vs in a community of contributors. If they can find devs willing to contribute under that - more power to them. But that wasn't the early model under GPLv2.
So the drafters fractured the GPL copyleft landscape (bad), messed up the popularity of this type of license (bad), didn't have the integrity to do a GPLv3 in keeping with v2 (bad).
It's kind of incredible, there was this AMAZING license in v2, I mean, folks had really consolidated around it in a fair number of major areas and ways. I sometimes can't believe that got torched for MIT and Apache (which really are not copyleft though they are open source).
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Anyways, having failed with v3, I'm expecting they will try to back fit v3 by saying v2 is really v3? Look for some very strong pushback on that.