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Editorial Team
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Asked: 2026-05-11T20:45:11+00:00

I am currently working with a device that has iPhone OS 2.2.1. And as

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I am currently working with a device that has iPhone OS 2.2.1.
And as You all know that the OS 3.0 update is available for download.
I have downloaded the update and also read many comments on it.
I have developed all my apps on OS 2.2.1.
Just to confirm, if I install 3.0 on my device will the apps be compatible.
If not then can I roll back to 2.2.1? If rolling back is possible then how can I roll back?

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1 Answer

  1. Editorial Team

    Are your Apps for sale in the App Store? Or are they private apps? Apple won’t approve any that aren’t 3.0 compatible now, but I’m pretty sure all 2.2.1 apps work on 3.0.

    With the iPhone simulator, you can test for different versions. With the device, there is no easy way to roll back to 2.2.1.

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