> Unreal has licenses which allow you to use one version of their engine FOREVER and they cannot revoke that license.
Even if this is 100% legally true, they can absolutely say that they are revoking all old licenses, and then if you used one, it's up to you to take Epic to court to prove that they can't.
Even if this is 100% legally true, they can absolutely say that they are revoking all old licenses, and then if you used one, it's up to you to take Epic to court to prove that they can't.