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Editorial Team
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Editorial Team
Asked: May 11, 20262026-05-11T19:22:21+00:00 2026-05-11T19:22:21+00:00

I am currently developing applications on the 2.2.1 sdk, and considering to upgrading my

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I am currently developing applications on the 2.2.1 sdk, and considering to upgrading my iphone to sdk 3.0. Can my phone still be used to run old version programs (2.1, 2.2 etc), call, send sms and so on? Or will it be restricted to only be used to test 3.0 developed programs?
Thanks, Hans Espen

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  1. Editorial Team
    Editorial Team
    2026-05-11T19:22:22+00:00Added an answer on May 11, 2026 at 7:22 pm

    Apple has frozen iPhone development on v2.2 for the past few weeks. All new apps submitted to the App Store have to be on v3 of the OS.

    Your phone will still be able to run all your existing apps, and all core services will function. Beware that the OS will be considered Beta and will expire after 30 days. The expiration will require you to download the latest SDK and refresh your device. Not a problem, just an annoyance.

    The v3 of the OS is likely to go from beta to generally available during WWDC on Monday (06.08.09), so it may be easier to just wait till then if you do not want to deal with some of the beta hassles.

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