The last compatible version of Xcode for macOS High Sierra 10.13.6 is Xcode 10.1 . It requires a secondary package called "Command Line Tools (CLI) for Xcode 10.1" to function fully.
Open Xcode.app from your Applications folder. It will ask to install additional components. Accept. Then it will ask for your macOS password to configure the developer tools.
. Because the Mac App Store typically only offers the latest version of Xcode (which now requires much newer macOS versions), you must download the specific installer from Apple's developer archives. Apple Developer Steps to Download and Install Xcode 10.1
He archived the Xcode 10.1 DMG onto an external hard drive. He labeled it in permanent marker: download xcode for mac os high sierra 10136 work
Look through the results for the entry explicitly labeled . Avoid beta versions or command-line tool standalone packages unless you only need the terminal utilities. Step 3: Download the XIP File
sudo date 111812002018
xcode-select --install
Before downloading any software, it is crucial to understand which versions of Xcode are compatible with your operating system. The relationship between Xcode and macOS is strict—newer Xcode versions often require newer versions of macOS.
Xcode 10.1 includes iOS SDK 12.1. You won't be able to build apps for iOS 13, 14, or newer using this Xcode version. If you need to develop for modern iOS versions, you'll need a newer macOS and Xcode.
| Development Goal | Recommended Xcode Version | Notes | | :--- | :--- | :--- | | | Xcode 10.1 | Perfect for tutorials and older projects based on Swift 4.2 and iOS 12. | | Maintaining Legacy Apps | Xcode 10.1 | Suitable for projects frozen on this toolchain. | | Learning Swift 5.0 / Modern iOS | Xcode 10.2.1 (with workaround) | Technically possible, but more complex and unsupported. | | App Store / Modern iOS Development | Latest Xcode | Requires a newer Mac with an operating system of at least macOS 10.15 Catalina or later. | The last compatible version of Xcode for macOS
After installation, confirm the tools are working:
Because the Mac App Store only hosts the newest versions of Xcode, you must access Apple’s archive of legacy developer tools. Navigate to the official Apple Developer Downloads Archive .