---
title: "init(_:)"
framework: coredata
role: symbol
role_heading: Initializer
path: "coredata/nslightweightmigrationstage/init(_:)"
---

# init(_:)

Creates a lightweight migration stage with the specified version checksums.

## Declaration

```swift
convenience init(_ checksums: [String])
```

## Parameters

- `checksums`: The array of version checksums.

## Discussion

Discussion To determine an object model’s version checksum, use its versionChecksum property. Alternatively, you can find the checksum in the versioned model’s VersionInfo.plist file or in Xcode’s build log.