>>>>> Doug Gregor writes: Doug> It seems obvious to me that it would be easiest to just move today's Doug> mainline over to GPLv3, and have every GCC release >= 4.3 be GPLv3. We Doug> could then either cut off the GCC 4.2 branch entirely or leave it Doug> GPLv2. Then there are no surprises for anyone.
Leaving released branches as GPLv2 is not an option. That definitely would be the path of least surprise. David