---
title: patchVersion
framework: foundation
role: symbol
role_heading: Instance Property
path: foundation/operatingsystemversion/patchversion
---

# patchVersion

The update release number, such as 3 in version 10.9.3.

## Declaration

```swift
var patchVersion: Int
```

## See Also

### Version Components

- [majorVersion](foundation/operatingsystemversion/majorversion.md)
- [minorVersion](foundation/operatingsystemversion/minorversion.md)
- [majorVersion](foundation/operatingsystemversion/majorversion.md)
- [minorVersion](foundation/operatingsystemversion/minorversion.md)