Apple has released the following beta versions:

Apple Seeds Third Beta of iOS 11.4
Apple Seeds Third Beta of macOS High Sierra 10.13.5
Apple Seeds Third Beta of tvOS 11.4
Apple Seeds Third Beta of watchOS 4.3.1 to Developers

Apple Seeds Third Beta of iOS 11.4

Apple today seeded the third beta of an upcoming iOS 11.4 update to developers, two weeks after seeding the second beta and over a month after releasing iOS 11.3, a major update that introduced several new features.

Registered developers can download the new iOS 11.4 beta from Apple's Developer Center or over-the-air once the proper configuration profile has been installed from the Developer Center.

Read full article @ Mac Rumors

Apple Seeds Third Beta of macOS High Sierra 10.13.5

Apple today seeded the third beta of an upcoming macOS High Sierra 10.13.5 update to developers, two weeks after seeding the second beta and a month after releasing the macOS High Sierra 10.13.4 update.

The new macOS High Sierra 10.13.5 beta can be downloaded through Apple Developer Center or the Software Update mechanism in the Mac App Store with the proper profile installed.

Read full article @ Mac Rumors

Apple Seeds Third Beta of tvOS 11.4

Apple today seeded the third beta of an upcoming tvOS 11.4 update to developers for testing purposes, two weeks after seeding the first beta and a month after releasing the tvOS 11.3 update.

Designed for the fourth and fifth-generation Apple TV models, the new tvOS 11.4 developer beta can be downloaded onto the Apple TV via a profile that's installed using Xcode.

Read full article @ Mac Rumors

Apple Seeds Third Beta of watchOS 4.3.1 to Developers

Apple today seeded the third beta of an upcoming watchOS 4.3.1 update to developers for testing purposes, two weeks after seeding the first watchOS 4.3.1 beta and a month after releasing watchOS 4.3.

Once the proper configuration profile has been installed from the Apple Developer Center, the new watchOS 4.3.1 beta can be downloaded through the dedicated Apple Watch app on the iPhone by going to General --> Software update.

Read full article @ Mac Rumors