If you contribute to a Free software project under a GPL, unless you sign over your copyright they won't be able to relicense it, other than to a later, more re

If you contribute to a Free software project under a GPL, unless you sign over your copyright they won't be able to relicense it, other than to a later, more restrictive version of the GPL. The reason open source gets relicensed is because it can be, by anyone, as long as they follow whatever minimal attribution rules are associated with the particular license. It isn't just Hashicorp that could relicense all of their products from now forward - you could too, for your own personal editions. So, mostly no need to add the F to OSS when talking about this particular danger. Although moving to later GPLs has definitely upset people in the past, moving to proprietary (or ideosyncratic) licensing is different. The disputes about moving to later GPLs are about what code people will be forced to share in order to continue using the software in the way they're accustomed to, not about making competition a license violation.