Create versioning in CoreData

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In Your Xcode select .xcodemodeld file then goto Editor menu in xcode then select Add model version.it will show dialogue box with basic model and current model.select the basic model and then select create.

Finally you want to change the active model version.Select the newly created model in left panel and then goto right side first menu then in Model Version segment select your newly created model.Finally it will show green tickmark in the current model version.

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