---
title: majorVersion
framework: foundation
role: symbol
role_heading: Instance Property
path: foundation/operatingsystemversion/majorversion
---

# majorVersion

The major release number, such as 10 in version 10.9.3.

## Declaration

```swift
var majorVersion: Int
```

## See Also

### Version Components

- [minorVersion](foundation/operatingsystemversion/minorversion.md)
- [patchVersion](foundation/operatingsystemversion/patchversion.md)
- [minorVersion](foundation/operatingsystemversion/minorversion.md)
- [patchVersion](foundation/operatingsystemversion/patchversion.md)