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Document default core-js version fallback for coreJs option #319

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Donny/강동윤 (kdy1) merged 1 commit into from
Jun 21, 2026
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Document default core-js version fallback for coreJs option #319

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2 changes: 2 additions & 0 deletions apps/website/content/docs/configuration/supported-browsers.mdx
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Expand Up @@ -96,6 +96,8 @@ Define ES features to skip to reduce bundle size. For example, your `.swcrc` cou

The option has an effect when used alongside `mode: "usage"` or `mode: "entry"`. It is recommended to specify the minor version (E.g. `"3.22"`) otherwise `"3"` will be interpreted as `"3.0"` which may not include polyfills for the latest features.

When `coreJs` is `undefined`, SWC falls back to `core-js@3.0.0`.

## Additional Options

- `debug`: (_boolean_) defaults to `false`.
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