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    2 days ago

    Updating the system swaps out the old OS image for the new one; it’s both fast and safe. And you can keep around the old OS image (three of them, in fact) and easily roll back if you have a problem.

    So an entire OS image is written to the SSD whenever something within it is updated?

    I hope they employ de-duplication, or some other way to avoid wasting NAND cell life.