Apple launches beta & # 39; s for first developer for iOS 12.1, OS 5.1 and TVOS 12.1

Apple has restarted the beta versi, e day after the end of the previous cycle by sending public releases, with new first beta versis of iOS 12.1, OS 5.1 and tvOS 12.1 being released to developers for testing.

Developers participating in the test program can obtain the new builds from the Apple Developer Center or as wireless updates for devices that use previous beta versis. Public beta releases are typically downloaded within a few days after the beta versi of the developer, which can be downloaded from the Apple Beta Software Program website, but usually arrive later for the first builds.

The first beta versi of iOS 12.1 is build number 16B5059d, while the first build of tvOS 12.1 is 16J5575c. The first developer beta for OS 5.1 is build 16R5559d.

It is unclear what each beta versi ctains as changes or new features. AppleInsider examines each release to determine what's new and will report the updates in the near future.

AppleInsiderand Apple itself, strgly advise against installing beta releases missi-critical hardware, due to the potential for data loss. Those interested in beta testing should use secdary devices and back up important data before installing or running updates.

The new beta arrives ly 24 hours after Apple has released public versis of its mileste operating systems, csisting of iOS 12, TVOS 12 and OS 5.

Do you find changes in the new beta? Reach us Twitter @AppleInsider or @Andrew_OSU, or send Andrew an e-mail at

© Appleinsider

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