The runtime aspects of the multicore runtime has been pretty stable. Most of the effort currently is going into the algebraic effects extension that is used to

The runtime aspects of the multicore runtime has been pretty stable. Most of the effort currently is going into the algebraic effects extension that is used to map direct-style concurrency into multiple (parallel) cores: https://github.com/ocamllabs/ocaml-effects https://github.com/ocamllabs/ocaml-effects