Subject: Re: GPLv3 draft
From: simo <s@ssimo.org>
Date: Thu, 06 Apr 2006 19:48:15 -0400


Stephen, Bernard and Norbert, you are all wrong.

1st) the FSF says clearly that the GPLv3 license is NOT GPLv2
compatible.

2nd) two licenses must be claim by claim compatible, not word by word
identical. And the GPLv2 says that the program, when modified must be
released under the same terms.
The GPLv3 add further permissions the GPLv2 does not allow, and so they
are clearly not compatible, the GPLv2 can be often converted
automatically into the GPLv3, and thats the only kind of compatibility
you can find out. You can't use GPLv3 code in GPLv2 only programs.

3rd) The GPLv3 must be incompatible with the GPLv2 otherwise any vendor
could exploit a GPLv2 bug by just releasing a GPLv3 program under GPLv2
(like for example the hardware DRM problem).