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Those releases are 12 years apart and are definitely not using SemVer.

I’m not at all against breaking changes, nor am I trying to litigate which languages are harder to extend non-breakingly, I’m just surprised that there’s no compatibility guarantees between 3.x releases.

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I meant that C example to get some insight on what you mean by "permissive language" and why that was important to the topic.

What language makes the compatibility guarantee you're looking for? I can't think of enough such languages to warrant being surprised about Python's behavior.

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