Support IPC Message custom_metadata in ArrowStreamWriter and ArrowStreamReader (rebased continuation of #283) - #424

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rustyconover:feature/ipc-message-custom-metadata-rebased

Commits on Aug 24, 2026

Expose IPC Message custom_metadata on ArrowStreamReader

authored and
rustyconover
committed
a123f03
Add WriteRecordBatch overload with custom_metadata

authored and
rustyconover
committed
9260dfe
Add custom_metadata cross-language tests using pythonnet + pyarrow:

Christoph Mettler
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rustyconover
committed
fcb77e5
Address Copilot review comments on #424
rustyconover
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0177e8b