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macOS 10.12 Sierra MacBook

Apple has issued the first macOS 10.12.1 developer beta in addition to the first Xcode 8.1 developer beta. The updates come just one day after Apple officially released the major macOS Sierra update for all users.

The new macOS 10.12.1 developer beta features build version 16B2327e while the first Xcode 8.1 beta has build version 8T29o. We’ll dig in to the first update to macOS Sierra and update with any notable changes.

From Apple’s release notes:

The macOS Sierra 10.12.1 update improves the stability, compatibility, and security of your Mac.

  • Mail has a minor change to the Junk icon (trash can with X versus thumbs down)

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