@ramsey I worked for a company that used GPLv2 with a CLA precisely so they could relicense. It's the "rules for thee, not for me" licensing tactic, used for when startups are concerned about their ability to sell out if all their code is GPL-bound. You basically use your accrued CLA rights to publish a "new" copy that isn't encumbered. I forked a GPLv2 project from that company but I don't have the CLAs so my fork is GPLv2 forever.