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What happens when you rely on non standard behaviour of unix tools, or just non-posix tools that change from beneath you?

I’m not saying that this makes powershell pipes better/worse, just that this problem isn’t unique. Microsoft tends to be reasonably committed to backwards compatibility but I don’t know the answer to the question

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I think they were talking about objects at execution time, not version compatibility.

I don’t really understand what this means. The parent specifically writes “backwards compatibility.” The only other thing I think you might be referring to is if the reading process mutates the objects does that somehow affect the writing end of the pipe but I think that doesn’t make sense from a “sane way of doing inter-process communication” standpoint. Is there something else you are referring to? Could you elaborate please?

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