xcode10.2 - Is it possible to install Xcode 10.2 on High Sierra (10.13.6)?

Question

I recently upgraded iOS in my iPhone device to 12.2 (to provide support of latest versions for my app "Match4app"), and this does not appear to be compatible with Xcode 10.1. Should I update Xcode to 10.2 ?

In my Mac with High Sierra, when I click "Update" for Xcode, 10.2 is not available.

I have found this link: https://support.apple.com/en-us/HT209606

With this comment: "Xcode 10.2 Released March 25, 2019 Kernel Available for: macOS High Sierra 10.13.6 or later"

How can I install Xcode 10.2 with High Sierra in order to test iOS 12.2 ?

Note: Upgrading to Mojave or Catalina is NOT an option in my old Mac (though I will try to install the macOS Catalina Patcher soon (http://dosdude1.com/catalina/) ).

Answer 1

Yes it's possible. Follow these steps:

1. Download Xcode 10.2 via this link (you need to be signed in with your Apple Id): https://developer.apple.com/services-account/download?path=/Developer_Tools/Xcode_10.2/Xcode_10.2.xip and install it
2. Edit Xcode.app/Contents/Info.plist and change the Minimum System Version to 10.13.6
3. Do the same for Xcode.app/Contents/Developer/Applications/Simulator.app/Contents/Info.plist (might require a restart of Xcode and/or Mac OS to make it open the simulator on run)
4. Replace Xcode.app/Contents/Developer/usr/bin/xcodebuild with the one from 10.1 (or another version you have currently installed, such as 10.0).
5. If there are problems with the simulator, reboot your Mac