5 days after the release of iOS 12 Beta 8, Apple has released the beta 9 of iOS 12 for developers. As a reminder, last week there were 2 betas, indeed the beta 8 arrived just two days after the release of the beta 7 due to reports of bugs and crashes.
The beta 9 comes with build number 16A5362a. OS update for other devices are also available to download which includes macOS Mojave 10.14 beta 8 (18A371a), watchOS 5 beta 8 (16R5357a) and tvOS 12 beta 8 (16J5355a).
The new update comes with bug fixes and system improvements. The system is available to registered developers, and can now be downloaded via the OTA or through the Apple Developer Center.