Use ReadOnlyMemory<byte> for binary data to eliminate UTF-16 transcoding#1070

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copilot/fix-binary-data-encoding

Commits on Dec 8, 2025

Apply performance optimizations using MemoryMarshal.TryGetArray

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stephentoub
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Use GetBytes overload with offset and count parameters

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stephentoub
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Commits on Dec 9, 2025

Use Base64.DecodeFromUtf8 to avoid string intermediate during decoding

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ericstj
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