Andrew Lentvorski wrote: > John H. Robinson, IV wrote: > >Andrew Lentvorski wrote: > >>One thing people forget is that Trolltech still controls the copyright > >>on Qt. It can legally revoke the GPL license on Qt *any time it chooses*. > > > >Any copyright holder can revoke/change the licensing at any time. What > >they cannot do is retroactively change it. > > They can't come back and sue you for having used code in the past. > However, they can prevent you from using it any more in the future. > > If Trolltech pulls the Qt license, Qt usage stops immediately.
No. If QT released version 3.45 under GPL, then pulls it, you can still use 3.45 under the terms of the GPL. However, if 4.5 is released under a ``you-no-touchy'' license, then you can't use 4.5. You are stuck with 3.45. You can add the features of 4.5 yourself, but you may not use any code from 4.5 in doing so. > >This has happened before, with the resultant fork. Think SSH.com vs. > >OpenSSH. > > Really? I'm pretty sure that OpenSSH couldn't use *any* code from > SSH.com. That's not a fork; that's a complete rewrite. OpenBSD has had > to do that for a few things. OpenSSH being one; pf being another. OpenSSH forked from the last free release of Tatu Ylonen's ssh. This is perfectly legal. -john -- [email protected] http://www.kernel-panic.org/cgi-bin/mailman/listinfo/kplug-list
