Apple has released new beta versions to the developers:

Apple Releases First Beta of New watchOS 6 Operating System to Developers
Apple Seeds First Beta of macOS 10.15 Catalina to Developers
Apple Seeds First Beta of tvOS 13 to Developers

Apple Releases First Beta of New watchOS 6 Operating System to Developers

Apple this morning introduced watchOS 6, a new version of the watchOS software that runs on the Apple Watch. Following the keynote event, Apple has now released the first beta of watchOS 6 to developers for testing purposes.

Read full article @ Mac Rumors

Apple Seeds First Beta of macOS 10.15 Catalina to Developers

Apple this morning introduced the newest version of macOS, the operating system that runs on the Mac. macOS Catalina is now available in a beta capacity for registered developers who are able to download it for testing purposes.

The new macOS Catalina beta can be downloaded from the Apple Developer Center, and once installed, subsequent betas will be available through the Software Update mechanism in System Preferences.

Read full article @ Mac Rumors

Apple Seeds First Beta of tvOS 13 to Developers

Following today's WWDC keynote event that saw the introduction of iOS 13, macOS 10.15, watchOS 6, and tvOS 13, Apple has seeded the first beta of the new tvOS 13 operating system to developers.

Designed for the fourth and fifth-generation Apple TV, the new tvOS 13 developer beta can be downloaded onto the Apple TV via a profile that's installed using Xcode.

Read full article @ Mac Rumors