Roughly three weeks after releasing the first developer preview of macOS Sierra at WWDC 2016, Apple has pushed macOS 10.12 beta 2 through the Mac App Store for testing. macOS Sierra brings Siri to the Mac for the first time. Some new features like Apple Pay for Safari and Auto Unlock haven’t been available for testing yet so today’s release will be interesting.

Testing macOS Sierra currently requires a promo code for registered developers that you redeem through the Mac App Store. The second preview version is available through the Software Updates section. We’ll update with any notable changes found in macOS Sierra beta 2, and catch up on our macOS 10.12 coverage below for all the details:

  • Apple announces macOS Sierra at WWDC with Apple Pay, Auto Unlock, Universal Clipboard and more
  • Apple announces macOS Sierra will ship in the fall, developer beta today, public beta in July
  • Hands-on: New features in macOS Sierra [Video]
  • Top 10 WWDC 2016 features from iOS 10, macOS Sierra, watchOS 3, and tvOS 10 [Video + Poll]
  • Download iOS 10 and macOS 10.12 Sierra wallpapers for iPhone, iPad, and Mac
  • macOS Sierra beta lets Mac users rearrange third-party menu bar extras
  • How-To: Enable Picture-in-Picture for YouTube videos in macOS Sierra
  • macOS Sierra Preview Roundup: Mac catching up with iPhone & iPad, but many iOS 10 features are missing

Also give us a shout on Twitter @9to5mac, email us at tips@9to5mac.com, or shout in the comments below with anything interesting you discover!

Here’s the update:

One of the most anticipated new features, Auto Unlock, is available in System Preferences → Security & Privacy. This setting will allow Apple Watch owners to unlock their Macs using the wearable. We’ll have a full demonstration of Auto Unlock in a later post.

Update: See it in action here →  Hands-on with Auto Unlock in macOS Sierra beta 2 [Video]