MigrationStage Describes a migration between two versions of the same schema. Declarationenum MigrationStage TopicsMigration stagesMigrationStage.lightweight(fromVersion:toVersion:)MigrationStage.custom(fromVersion:toVersion:willMigrate:didMigrate:) RelationshipsConforms ToSendableSendableMetatype See AlsoManaging migration stagesstages