---
title: swiftLanguageModes
framework: swift-package-manager
role: symbol
role_heading: Instance Property
path: swift-package-manager/documentation/packagedescription/package/swiftlanguagemodes
---

# swiftLanguageModes

The list of Swift language modes with which this package is compatible.

## Declaration

```swift
var swiftLanguageModes: [SwiftLanguageMode]?
```

## See Also

### Declaring Supported Languages

- [SwiftLanguageMode](swift-package-manager/documentation/packagedescription/swiftlanguagemode.md)
- [CLanguageStandard](swift-package-manager/documentation/packagedescription/clanguagestandard.md)
- [CXXLanguageStandard](swift-package-manager/documentation/packagedescription/cxxlanguagestandard.md)
- [cLanguageStandard](swift-package-manager/documentation/packagedescription/package/clanguagestandard.md)
- [cxxLanguageStandard](swift-package-manager/documentation/packagedescription/package/cxxlanguagestandard.md)
- [SwiftVersion](swift-package-manager/documentation/packagedescription/swiftversion.md)
- [swiftLanguageVersions](swift-package-manager/documentation/packagedescription/package/swiftlanguageversions.md)