Following the conclusion of “Gather round” Special Event, Apple posts GM seeds of iOS 12, watchOS 5 and tvOS 12 along with macOS Mojave 11.4 beta 11.
- iOS 12 GM Seed build 16A366
- watchOS 5 GM Seed build 16R364
- tvOS 12 GM Seed build 16J364
One interesting note on macOS Mojave 11.4 beta 11 build 18A389, that it is believed to be the Release Candidate or even a GM seed.