Apple has released the following beta versions:

Apple Seeds Third Beta of iOS 12.1 to Developers
Apple Seeds Third Beta of tvOS 12.1 to Developers
Apple Seeds Third Beta of watchOS 5.1 to Developers

Apple Seeds Third Beta of iOS 12.1 to Developers

Apple today seeded the third beta of an upcoming iOS 12.1 update to developers, one week after seeding the second beta and three weeks after releasing iOS 12, a major new version of the iOS software.

Registered developers can download the new iOS 12.1 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 tvOS 12.1 to Developers

Apple today seeded the third beta of an upcoming tvOS 12.1 update to developers for testing purposes, one week after seeding the second update and three weeks after releasing the tvOS 12 update.

Designed for the fourth and fifth-generation Apple TV models, the new tvOS 12.1 beta can be downloaded onto the Apple TV via a profile that's installed using Xcode. Subsequent betas can be downloaded over-the-air.

Read full article @ Mac Rumors

Apple Seeds Third Beta of watchOS 5.1 to Developers

Apple today seeded the third beta of an upcoming watchOS 5.1 update to developers, one week after seeding the second watchOS 5.1 beta and three weeks after releasing the new watchOS 5 operating system.

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

Read full article @ Mac Rumors