Apple has released the following beta versions to the developers:

Apple Releases Third Beta of New watchOS 5 Operating System to Developers
Apple Seeds Third Beta of iOS 12 to Developers
Apple Seeds Third Beta of macOS 10.14 Mojave to Developers

Apple Releases Third Beta of New watchOS 5 Operating System to Developers

Apple today seeded the third beta of an upcoming watchOS 5 update to developers, two weeks after releasing the second beta and a month after introducing the software at the Worldwide Developers Conference. watchOS 5 is the newest version of the software that runs on the Apple Watch.

To install the beta, you'll need the proper configuration profile, which can be obtained through the Apple Developer Center. Once the profile is in place, the watchOS 5 beta can be downloaded using the dedicated Apple Watch app on the iPhone by going to General --> Software Update.

Read full article @ Mac Rumors

Apple Seeds Third Beta of iOS 12 to Developers

Apple today seeded the third beta of the upcoming iOS 12 update to developers for testing purposes, two weeks after seeding the second beta and a month after introducing the new software at the Worldwide Developers Conference.

Registered developers can download the new iOS 12 beta from Apple's Developer Center or over-the-air after installing the proper certificate.

Read full article @ Mac Rumors

Apple Seeds Third Beta of macOS 10.14 Mojave to Developers

Apple today seeded the third beta of an upcoming macOS Mojave update to developers for testing purposes, two weeks after releasing the second beta and a month after introducing the software at the Worldwide Developers Conference.

macOS Mojave introduces a new method of installing software updates, so after you've installed the appropriate profile from the Apple Developer Center, additional betas can be downloaded clicking on the Apple in the menu bar, choosing "About This Mac" and clicking "Software Update." Alternatively, open System Preferences and choose the "Software Update" icon.

Read full article @ Mac Rumors