11.3.1 (11C505) Released: January 13, 2020 Requires: macOS 10.14.4 or later SDKs: iOS 13.3, iPadOS 13.3, tvOS 13.3, watchOS 6.1.1, macOS Catalina 10.15.2 Swift version: Swift 5.1.3
macOS’s Gatekeeper is blocking the unverified DMG. Fix: Run this Terminal command to quarantine removal: sudo spctl --master-disable Install the DMG, then re-enable Gatekeeper: sudo spctl --master-enable xcode 11.3.1 download dmg
Have you successfully installed Xcode 11.3.1 on an unsupported Mac? What workarounds did you use? Share your experience in the comments below. 11.3.1 (11C505) Released: January 13