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by cogman10 176 days ago
> except for some small things that are documented

I can't think of any established language that doesn't fit that exact criteria.

The last major language breakage I'm aware of was either the .Net 2 to 3 or Python 2 to 3 changes (not sure which came first). Otherwise, pretty much every language that makes a break will make it in a small fashion that's well documented.