Not there yet, not even close. Mike Pall announced his proposal for a new GC a long time ago and thus far no sponsor has shown up. I doubt there is enough inte

Not there yet, not even close. Mike Pall announced his proposal for a new GC a long time ago and thus far no sponsor has shown up. I doubt there is enough interest. This is a major project (i.e. non-trivial amount of sponsor money needed) and Lua users (including myself) seem to be happy with Lua's simple, incremental GC. It does work well for typical Lua use cases.