Apple has seeded the GM (Golden Master) of iOS 12 to developers, which comes after Apple released beta 11 on August 27th.
The GM version comes after Apple has wrapped up their Gather round Event. Registered developers can download the GM through Apple’s dev center, or they can be installed using each platform’s respective OTA updating mechanism.
iOS 12 has brought a host of new features which we have previously covered. iOS 12 will be released to the Public on September 17th.