<!--
{
  "availability" : [
    "iOS: 27.0.0 -",
    "iPadOS: 27.0.0 -",
    "macOS: 27.0.0 -",
    "tvOS: 27.0.0 -",
    "visionOS: 27.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "Vision",
  "identifier" : "/documentation/Vision/DetectFaceLandmarksRequest/Revision-swift.enum/revision4",
  "metadataVersion" : "0.1.0",
  "role" : "Case",
  "symbol" : {
    "kind" : "Case",
    "modules" : [
      "Vision"
    ],
    "preciseIdentifier" : "s:6Vision26DetectFaceLandmarksRequestV8RevisionO9revision4yA2EmF"
  },
  "title" : "DetectFaceLandmarksRequest.Revision.revision4"
}
-->

# DetectFaceLandmarksRequest.Revision.revision4

This revision uses [`DetectFaceRectanglesRequest.Revision.revision4`](/documentation/Vision/DetectFaceRectanglesRequest/Revision-swift.enum/revision4) for detecting faces and then detects 98 face landmark points,
providing more detailed results than the previous revision.
This is the default revision on platforms that support it. Specify `.revision3` at instantiation to preserve the previous behavior.
Use [`supportedRevisions`](/documentation/Vision/DetectFaceLandmarksRequest/supportedRevisions) to check if this revision is supported on the platform.

```
case revision4
```

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)