There's no way we can just release the script since it's going to need the libraries that will come with v8.

We're working on getting v8 ready as soon as possible, but to fix threaded it's going to require an upgrade (which you said you weren't planning on doing). With the current system, the way threaded mode works now is about as good as it can get. Which is why I had mentioned that our only solution to fix it completely is during a rewrite.