For this we just have set option GarbageCollection = SUPPORTED for V4CC (32/64) and iV4CC (Dev/Sim) targets. This means that now these frameworks will work in both kinds of apps: GC-enabled and GC-not-enabled.
Note, that internally V4CC still uses retain/release. Also keep in mind that we very recommending to developers manage lifetimes of database objects manually. Just image that you have allow to GarbageCollector manage a VCursor instance. When you think record locks will be released?