Which version of Xcode was used to make an .ipa file

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I recently had to figure out which version of Xcode was used to build an .ipa file (iOS application).

Xcode adds some extra entries to the Info.plist file. Steps:

1. Unzip the .ipa to a temporary location
2. Open the Payload/*appname*.app/Info.plist file
3. Check the DTXcode and DTXcodeBuild values

A good reference for dates/versions of Xcode is at xcodereleases.com

A complete script to do this is here

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