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Summary

PyArrow 21.0.0 is now required and brings preliminary variant type support; this release also fixes regressions in MERGE operations, partition column changes, S3 GIL contention, and Unity Catalog operations. New features include typed custom metadata support in CommitProperties and Musl arm64 wheels.

Summary generated by brickster.ai. For the full changelog and any code/binary attachments, follow the GitHub link above.

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