How do I install Xcode and swift on iMac running 10.15.6 or earlier OS? is it possible to run an emulated web kit for app dev?
xcode and swift
Xcode 12.4 is the latest version that runs on Catalina. You can download it at the following URL:
https://developer.apple.com/xcode/resources/
The site Xcode Releases (xcodereleases.com) also has direct download links for every Xcode version Apple has ever released.