---
title: primaryR4()
framework: healthkit
role: symbol
role_heading: Type Method
path: healthkit/hkfhirversion/primaryr4()
---

# primaryR4()

Returns the primary Release 4 (R4) version.

## Declaration

```swift
class func primaryR4() -> Self
```

## See Also

### Creating Version Objects

- [init(fromVersionString:)](healthkit/hkfhirversion/init(fromversionstring:).md)
- [primaryDSTU2()](healthkit/hkfhirversion/primarydstu2().md)