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Can we maintain two versions of Xcode (like Xcode 3.2 and Xcode 4) in parallel on a single Mac machine?
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Yes, you can install multiple versions of Xcode. They will install into separate directories. I've found that the best practice is to install the version that came with your Mac first and then install downloaded versions, but it probably doesn't make a big difference.
xcodebuild builds one or more targets contained in an Xcode project, or builds a scheme contained in an Xcode workspace or Xcode project. Usage To build an Xcode project, run xcodebuild from the directory containing your project (i.e. the directory containing the projectname. xcodeproj package).
Xcode 12 requires an Intel-based Mac running macOS Catalina 10.15. 4 or later.
Yes - this works fine - normally when you install Xcode 4 if you already have an older version of Xcode it gets moved to /Developer-old and the new Xcode 4 installation goes in /Developer. Many people such as myself do this so that they can have both Xcode 3.x and Xcode 4.x installed at the same time.
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