---
title: domainVersion
framework: fileprovider
role: symbol
role_heading: Instance Property
path: fileprovider/nsfileproviderdomainstate/domainversion
---

# domainVersion

An opaque object that uniquely identifies the domain’s version.

## Declaration

```swift
var domainVersion: NSFileProviderDomainVersion { get }
```

## See Also

### Accessing State Data

- [userInfo](fileprovider/nsfileproviderdomainstate/userinfo.md)