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# Link Previews block and rich_text supported in response

The public API now supports returning `link_preview` blocks and mentions found in `rich_text`! Previously these blocks had type `unsupported` and mentions were skipped in `rich_text`. Note: `link_preview`s cannot be created via the API, only returned in responses. 

See the documentation in [blocks](/reference/block#link-preview-blocks) and [`rich_text`](/reference/rich-text#link-preview-mentions) for more information.

**`JSON`**

```json JSON
{
  "type": "link_preview",
  //...other keys excluded
  "link_preview": {
    "url": "https://github.com/example/example-repo/pull/1234"
  }
}
```