The second beta of macOS Sierra has now been seeded to developers. We find this a little over three weeks after the first release. In this beta of macOS Sierra specifically, we see minor bug fixes. There are no major UI changes that we have noticed. This version does brings Auto Unlock, which allows you to unlock your Mac with an Apple Watch. If there is anything else that’s new, we’ll be sure to update this post.
To get the latest beta, developers can download it from the Mac App Store. If you don’t have it yet, you can download the installer from the Apple Developer Center downloads page.