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FWIW, the article says "Frontends are somewhat insulated from this because they can use the largely stable C API." but that's not been my/our experience. There are parts of the API that are somewhat stable, but other parts (e.g. Orc) that change wildly.

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Yes, the Orc C API follows different rules from the rest of the C API (https://github.com/llvm/llvm-project/blob/501416a755d1b85ca1...).

I know, but even if it's not breaking promises, the constant stream of changes still makes it still rather painful to utilize LLVM. Not helped by the fact that unless you embed LLVM you have to deal with a lot of different LLVM versions out there...

FWIW eventual stability is a goal, but there's going to be more churn as we work towards full arbitrary program execution (https://www.youtube.com/watch?v=qgtA-bWC_vM covers some recent progress).

If you're looking for stability in practice: the ORC LLJIT API is your best bet at the moment (or sticking to MCJIT until it's removed).

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