> hypothetical GPLv4 has to be similar in spirit to the previous GPL licenses, This doesn't cause an issue though, the software is still licensed under v3. A m

> hypothetical GPLv4 has to be similar in spirit to the previous GPL licenses, This doesn't cause an issue though, the software is still licensed under v3. A more restrictive v4 can be ignored, an issue would only arrise from a less restrictive v4.