electron/spec/fixtures/release-notes/cache/electron-electron-pull-20214

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Latency for small messages is not significantly affected.\r\n\r\nUser-observable differences from the existing IPC API:\r\n- It's about 2x faster.\r\n- `NaN`, `Infinity`, and `undefined` are transferred as such, rather than being converted to `null`.\r\n- Cyclic objects can be transmitted.\r\n- `Set` and `Map`, `Error`, `RegExp`, `Date` and `BigInt` can be transmitted.\r\n- `Buffer` will be converted to `Uint8Array`.\r\n- Typed arrays (`Float32Array` and friends) will be transmitted as they are, instead of being converted to `Buffer`.\r\n- Sparse arrays will be transferred as sparse arrays, instead of being converted to dense arrays with `null`s.\r\n\r\n> **NOTE**: Objects that aren't serializable with V8's Structured Clone algorithm, such as functions, DOM objects, special Node/Electron objects like `process.env` or `WebContents`, or any objects containing such items will be serialized with the old `base::Value`-based algorithm. However, this behavior is deprecated and will throw an exception beginning with Electron 9.\r\n\r\n#### Checklist\r\n<!-- Remove items that do not apply. For completed items, change [ ] to [x]. -->\r\n\r\n- [x] PR description included and stakeholders cc'd\r\n- [x] `npm test` passes\r\n- [x] tests are [changed or added](https://github.com/electron/electron/blob/master/docs/development/testing.md)\r\n- [x] relevant documentation is changed or added\r\n- [x] PR title follows semantic [commit guidelines](https://github.com/electron/electron/blob/master/docs/development/pull-requests.md#commit-message-guidelines)\r\n- [x] [PR release notes](https://github.com/electron/clerk/blob/master/README.md) describe the change in a way relevant to app developers, and are [capitalized, punctuated, and past tense](https://github.com/electron/clerk/blob/master/README.md#examples).\r\n\r\n#### Release Notes\r\n\r\nNotes: IPC between main and renderer processes now uses the Structured Clone 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