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Discussion on: Should behavioural changes be considered breaking changes under SemVer?

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James Turner Author

I guess though it is hard to determine whether a client previously expected it - for all we know, the client is actually checking the stack trace of exceptions (for whatever reason that would be useful) to determine how their code should operate. Or bug fixes, where is the line that any bug fix isn't a breaking change because they are behavioural change? Is there no line? Does it make the "patch" versions of SemVer redundant if every behavioural change doesn't work?

I get to an extent, if someone is using reflection to go through the code, it is more on them than on the code they are consuming. With something like exceptions though, all the properties on them are non-reflection from the consumer's point of view.

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