I have a Mac early 2011 running MacOS high sierra 10.13.6. My Mac can't upgrade to higher MacOS versions.
I need to install XCode 11 to take advantage of SwiftUI.
This answer worked for XCode 10.2 but didn't work for XCode 11.
So can I install XCode11 on MacOS high sierra 10.13.6?
From Xcode 11 Release Notes:
Xcode 11 requires a Mac running macOS 10.14.3 or later.
So you cannot install Xcode 11 on macOS 10.13.6