I am downloading the update to an existing application in the application store. I used Xcode 6.4, now in the latest Xcode (7.2), multiple task support on the iPad is a new addition, as well as bit code support. The archive file doubles the previous assembly, and when created, warnings about the launch of the file are displayed. Can I use Xcode 6.4 itself or the new Xcode 7.2.
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