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Each iOS version is very different from the last. Sometimes older hardware and software becomes incompatible with the next version with no legacy support for them. This is much easier for Macs, can't you revert software versions? It might be good to keep it this way.
 
What I am talking is a forum for generic iOS questions and chat.
I think the point is that for the most part most of the discussions are version specific, and while there is a macos forum, there may be less of a need on the iOS side.
 
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