---
title: NSLightweightMigrationStage
framework: coredata
role: symbol
role_heading: Class
path: coredata/nslightweightmigrationstage
---

# NSLightweightMigrationStage

An object that describes a series of models suitable for lightweight migration.

## Declaration

```swift
class NSLightweightMigrationStage
```

## Overview

Overview Use NSLightweightMigrationStage when you have a series of models to migrate and those models are compatible with lightweight migrations. Instances of this class supplement your custom migration stages and help maintain a consistent stage order for the entire migration.

## Topics

### Creating a migration stage

- [init(_:)](coredata/nslightweightmigrationstage/init(_:).md)

### Accessing the checksums

- [versionChecksums](coredata/nslightweightmigrationstage/versionchecksums.md)

## Relationships

### Inherits From

- [NSMigrationStage](coredata/nsmigrationstage.md)

### Conforms To

- [CVarArg](swift/cvararg.md)
- [CustomDebugStringConvertible](swift/customdebugstringconvertible.md)
- [CustomStringConvertible](swift/customstringconvertible.md)
- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [NSObjectProtocol](objectivec/nsobjectprotocol.md)

## See Also

### Migration stages

- [NSCustomMigrationStage](coredata/nscustommigrationstage.md)
- [NSMigrationStage](coredata/nsmigrationstage.md)