WP7 7.1 (Mango) Database Versioning

I have a class structure that's saved to the local SQL DB on the phone. In the next version of the app, the class structur开发者_运维问答e has changed.

How does the SQL DB deserialize the data into the changed objects/structure?

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I was listening to YapCast with Jesse Liberty and Sean McKenna mentioned there is an API for doing database upgrades for new data model versions.

DatabaseSchemaUpdator