Release DataFusion-Python 54.0.0 #1533

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Release DataFusion-Python 54.0.0#1533

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timsaucer

opened on May 12, 2026

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Tracking issue for 54.0.0 release.

PRs to merge or close

• docs: document null-handling function arguments #1527
• fix: type scalar UDF returns as Arrow arrays #1528
• docs: user guide + runnable examples for distributing expressions #1547
• feat: create free-threaded python wheels #1553
• feat: pass calling SessionContext to Python UDTF callbacks #1555
• feat: accept distinct kwarg on sum and avg #1556
• feat: import user-defined physical optimizer rules over FFI #1557
• feat: expose lambda and higher-order array functions #1561
• chore: remove unused PyConfig #1485
• Export to_datafusion_err from the util crate root #1487

Optional but nice to have

• Improve DataFrame docs flow #1526
• CI: apply zizmor security rules to verify-release-candidate.yml  #1529

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