Apple Seeds Second macOS Sierra 10.12.1 Beta to Developers and Public Beta Testers

Apple today seeded the second beta of an upcoming macOS Sierra update to developers and public beta testers for testing purposes, nearly a week after seeding the first beta and a week after releasing the new operating system to the public.

macOS Sierra 10.12.1 beta 2, build 16B2333a, can be downloaded from the Apple Developer Center (developers only), Apple's beta testing website (beta testers only) and through the Software update mechanism in the Mac App Store for those who previously installed the first 10.12.1 beta.

macossierra
macOS Sierra 10.12.1 appears to focus on bug fixes and under-the-hood performance improvements to address issues that have been found since the operating system's release. Few outward-facing changes were discovered in the first beta, but it does include Photos support for the new iPhone 7 Plus Portrait feature introduced with the iOS 10.1 beta.

Any new features that are discovered in the second 10.12.1 beta will be listed below.

macOS Sierra is a significant update that brings features like Siri support, a new storage optimization option, cross device copy paste, auto unlocking with the Apple Watch, and more.

Related Forum: macOS Sierra

Popular Stories

iOS 18

iOS 18.4 Coming Next Week With These New Features for Your iPhone

Friday February 14, 2025 6:18 am PST by
The first iOS 18.4 beta for iPhones should be just around the corner, and the update is expected to include many new features and changes. Bloomberg's Mark Gurman expects the iOS 18.4 beta to be released by next week. Below, we outline what to expect from iOS 18.4 so far. Apple Intelligence for Siri Siri is expected to get several enhancements powered by Apple Intelligence on iOS...
iPhone 17 Roundup Feature 2

iPhone Design to Change 'Significantly' This Year

Monday February 17, 2025 7:09 am PST by
Apple is set to "significantly change" the iPhone's design language later this year, according to a Weibo leaker. In a new post, the user known "Digital Chat Station" said that the iPhone's design is "starting to change significantly" this year. The "iPhone 17 Air" reportedly features a "horizontal, bar-shaped" design on the rear, likely referring to an elongated camera bump. On the other...
apple launch feb 2025

Tim Cook Teases an 'Apple Launch' Next Wednesday

Thursday February 13, 2025 8:07 am PST by
In a social media post today, Apple CEO Tim Cook teased an upcoming "launch" of some kind scheduled for Wednesday, February 19. "Get ready to meet the newest member of the family," he said, with an #AppleLaunch hashtag. The post includes a short video with an animated Apple logo inside a circle. Cook did not provide an exact time for the launch, or share any other specific details, so...
Apple iPhone 16e Feature

Apple Announces iPhone 16e With A18 Chip and Apple Intelligence, Pricing Starts at $599

Wednesday February 19, 2025 8:02 am PST by
Apple today introduced the iPhone 16e, its newest entry-level smartphone. The device succeeds the third-generation iPhone SE, which has now been discontinued. The iPhone 16e features a larger 6.1-inch OLED display, up from a 4.7-inch LCD on the iPhone SE. The display has a notch for Face ID, and this means that Apple no longer sells any iPhones with a Touch ID fingerprint button, marking the ...
Apple Maps 2024

Apple Maps Might Start Showing Ads

Sunday February 16, 2025 7:22 am PST by
Apple is "exploring" the idea of showing search ads in the Apple Maps app, according to Bloomberg's Mark Gurman. Back in 2022, Gurman said software engineering was "already underway" to display ads in the Apple Maps app, but Apple did not move forward with the idea at the time. Today, he said Apple is "giving this notion more thought" again. This time around, he said Apple has yet to...
Tim Cook Apple Park

10+ Announcements Apple Could Have Rolled Into a February Event

Saturday February 15, 2025 8:00 am PST by
Apple appears to have enough upcoming product announcements to justify a full event this month, yet all signs indicate these reveals will be handled through a series of press releases instead. There are a multitude of rumors from reliable sources about specific announcements in the coming weeks, so here's everything that Apple could have feasibly included in a hypothetical February event: ...
apple launch feb 2025 alt

What to Expect From the 'Apple Launch' Next Week

Thursday February 13, 2025 11:48 am PST by
Apple has yet to announce any new devices this year, but that could change starting next week. Apple CEO Tim Cook today said to "get ready" for a "launch" on Wednesday, February 19. "Get ready to meet the newest member of the family," said Cook, in a social media post. The post includes an #AppleLaunch hashtag, along with a short video featuring an animated Apple logo inside of a circle....
Apple 2025 Thumb 1

Two of Apple's Oldest Products Are Finally Getting Updated This Year

Friday February 14, 2025 6:03 am PST by
Apple released the HomePod mini in November 2020, followed by the AirTag in May 2021, and both still remain first-generation products. Fortunately, rumors suggest that both the HomePod mini and the AirTag will finally be updated at some point this year. Below, we recap rumors about the HomePod mini 2 and AirTag 2. HomePod mini 2 In January 2025, Bloomberg's Mark Gurman said Apple is ...

Top Rated Comments

theitsage Avatar
110 months ago
10.12.1 beta 1 brought newer and better drivers for Polaris GPUs. It added a new kext file AMDRadeonX4100.kext which solely contains PCI IDs for Polaris 11 GPUs.

References of Polaris GPUs in AMD9500Controller.kext


Radeon RX 480 is almost fully functional in tower Mac Pro (with 2 kext edits)


Attachment Image

Attachment Image
Score: 17 Votes (Like | Disagree)
ka-spot Avatar
110 months ago
awesome! they are fixing bugs faster for the next month's release of Macbook Pro's :) can't wait :D

just give me my precious !
Score: 7 Votes (Like | Disagree)
canny Avatar
110 months ago
Why can't I type into Siri? So it's maybe merged with Spotlight? Does Apple expect me talk to my computer in a quiet office with a dozen other people?
Score: 7 Votes (Like | Disagree)
GIZBUG Avatar
110 months ago
what about iPhone beta 2?
This thread is for macOS Sierra...
Score: 6 Votes (Like | Disagree)
theitsage Avatar
110 months ago
Possibly related to the new Macs?
Absolutely. A handful of people (myself included) have tried RX 460/470/480 GPUs in the tower Mac Pro with success. Fiji GPUs benefit from these new drivers as well.
Score: 4 Votes (Like | Disagree)
\-V-/ Avatar
110 months ago
Why can't I type into Siri? So it's maybe merged with Spotlight? Does Apple expect me talk to my computer in a quiet office with a dozen other people?
I don't think they expect you to do anything. If you can't use it in your office, then don't. It's a feature that requires your voice. Getting upset at a feature for things it wasn't designed to do just seems silly.
Score: 4 Votes (Like | Disagree)