Which version of Xcode support iOS 12.2?

Question

I was running my self-developed software on my iPhone 7 which runs iOS 12.2 when an alert had popped up:

This iPhone 7 (Model 1660, 1778, 1779, 1780) is r

Answer 1

You need Xcode 10.2 which is now available in the Mac AppStore and requires macOS 10.14.4. Direct download is not available right now.