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Nylas Node.js SDK v8.1.1

sdksnode

Fixed

Section titled “Fixed”
  • Metadata key casing in multipart form-data requests — When a send or draft payload reached the 3 MB threshold and the SDK switched from JSON to multipart/form-data, metadata keys like myCustomKey were silently rewritten to my_custom_key. The JSON path already preserved the original casing; the form-data path now matches it across messages.send(), drafts.create(), and drafts.update(). If you store metadata you intend to read back verbatim, upgrade to pick this up.