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Effectful concurrency feels so different from the async/await model I'm used to, but I'm really looking forward to playing around with it when OCaml 5 drops. Does anybody here have a more "ELI5" tier guide to it?

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Thomas Leonard did a great talk on our experiences with effects at the OCaml Workshop this year: https://watch.ocaml.org/videos/watch/74ece0a8-380f-4e2a-bef5...

Also you can start playing with effects today using the 4.12+domains branch on https://github.com/ocaml-multicore/ocaml-multicore

Thanks for the links, that was a very succinct talk and made me excited to try it out. Just one follow-up question: the 4.12+domains branch doesn't include support for the try syntax for handling effects, correct?

Correct. The 4.12+domains branch has effect handlers without syntactic support (which is what will be in 5.0), the 4.12+domains+effects has the syntax.

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