Apple on Friday seeded beta 12 of their upcoming iOS 12 operating system to developers for testing. The new beta comes just a few days following the release of beta 11. The release fixes a bug where iOS 12 beta users saw a constant popup that told them an iOS 12 update is available, even though one was not available.
The new beta is build 16A5366a and registered developers can install the new beta on their compatible iOS devices that have the proper certificate installed. The new beta can also be downloaded from the Apple Developer Center.
A new beta release was also seeded to public beta testers.