Release v4.0.1
Changed
- Package validation is enabled again, with the baseline moved to
4.0.0. It was switched off for the 4.0.0 major itself, where every API break was deliberate and validating against the 3.x line it was leaving had no answer to give. With 4.0.0 published, the baseline moves to it and the protection resumes — leaving it off past a major is what previously let releases ship without the break being caught.
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