Having this issue even crop up in the first place is about 98% unacceptable. This issue is already 4 days old, waiting on an update from Apple is 100% unacceptable. Also as a developer, I will always need to update to the new macOS and xCode on the day of their release. I should mention as a macOS and iOS developer, as others have that macOS has a beta program and you could easily have identified this issue weeks ago. While I don't want to go spend potentially hundreds, I also will not accept that a thousand dollar monitor is now sitting blank. Buy a USB video adapter from another more reliable source. wait for a fix, again I might add, DisplayLink died on the last macOS update as well. Rolling back my OS, even if I wanted to which I don't, is not an option. I must have macOS 10.13.4 to run the version of Xcode that allows me to develop for iOS 11.3.
