No, you don’t need copyright assignment to relicense permissively-licensed code, you (or anyone else really) literally only need to say “fuck it” and start buil

No, you don’t need copyright assignment to relicense permissively-licensed code, you (or anyone else really) literally only need to say “fuck it” and start building on the old BSD code with a new license. It is when you’re relicensing to a less restrictive license, say GPL to BSD, that you need CLA shenanigans beforehand.