https://wccftech.com/download-ios-12-beta-9/

Today, Apple has seen fit to seed iOS 12 Beta 9 to developers for testing purposes. The updates arrive more than two months after the company introduced iOS 12 at its WWDC event and less than a week after the release of Beta 8. The latest beta build is available for all supported iPhone, iPad and iPad touch and if you’re interested in finding out what’s new, dive in to see some more details.

iOS 12 Beta 9 arrives only a few days after the company released Beta 8 to developers. If you’re interested in checking out the new beta build for yourself, you can download it from the Apple Developer Center or via the OTA mechanism. Be sure to install a proper configuration profile before you begin.