Xcode adding DTXcode key and others to Info.plist

Recently Xcode started adding keys to the Info.plist of my Cocoa app:

• DTXcode
• DTXcodeBuild
• DTCompiler
• DTPlatformBuild
• DTPlatformName
• DTPlatformVersion
• DTSDKBuild
• DTSDKName

What are those keys used for and why do they all of a sudden appear? Are t开发者_Go百科hey needed?

I'm using Xcode 3.2.6

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These keys serve as information about the development environment.

Fox example, Xcode add them when you code-sign your application before submitting it to the App Store.

They also appear in the binary details of the application on iTunes Connect.