---
title: versionHash
framework: coredata
role: symbol
role_heading: Instance Property
path: coredata/nsrelationshipdescription/versionhash
---

# versionHash

The relationship’s unique identity.

## Declaration

```swift
var versionHash: Data { get }
```

## Discussion

Discussion To calculate its version hash, the relationship combines its superclass’s versionHash property with the values of inverseRelationship, destinationEntity, minCount, and maxCount.