What percentage of iPhone users using each iOS version [closed]

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I am looking for up-to-date report of iOS versions deployment in percentage. Something like Chitikia Report but up-to-date.

This info is extremely important for taking a decision of what iOS version to deploy my App...

Any idea where to find that? Is Apple publish such reports for its registered develo开发者_StackOverflow社区pers?

Many Thanks!

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Back from the dead :)

Finally Apple provides this information on this page.

Example screenshot:

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You might struggle to get these stats. As I understand it the latest Developer SDK T&C's prevent analytics software from collecting this sort of data. I know Flurry no longer collects the iOS version (its just displayed as 'Unidentified' now).

I've never seen any data published by Apple to developers either.