Apple Seeds First macOS Sierra 10.12.1 Beta to Developers

Apple today seeded the first beta of an upcoming macOS Sierra update to developers, just a day after releasing the new operating system to the public.

macOS Sierra Beta 10.12.1 is available for download through the Apple Developer Center and through the Software update mechanism in the Mac App Store.

macossierra
It is not clear what improvements the first update to macOS Sierra will bring, but it's likely to include bug fixes and performance improvements for issues that have been encountered between the time between the beta testing period and release.

We'll update this post with any new features that are found in macOS Sierra 10.12.1.

Related Forum: macOS Sierra

Popular Stories

Nineth iOS 19 Feature

iOS 19 Beta is a Month Away With These New Features for Your iPhone

Thursday May 8, 2025 7:37 am PDT by
The first iOS 19 beta is just one month away, and there are already many new features and changes that are expected with it. Apple should seed the first iOS 19 beta to developers immediately following the WWDC 2025 keynote, which is scheduled for Monday, June 9. Following beta testing, the update should be released to the general public in September. Below, we recap the key iOS 19 rumors...
Foldable iPhone 2023 Feature Homescreen

Apple's Foldable iPhone Display Tech May Set New Industry Standard

Thursday May 8, 2025 3:29 am PDT by
Apple's upcoming foldable iPhone will feature a new type of display panel developed by Samsung that has never been used in a foldable product, claims a source with links to Apple's supply chain. According to the account yeux1122 on the Korean Naver blog, the foldable iPhone will use a custom display process for which Apple will hold branding trademark rights, and that meets Apple's stringent ...
siri glow

iPhone Users Now Able to Submit Claims in $95 Million Siri Spying Lawsuit

Wednesday May 7, 2025 11:40 am PDT by
If you owned a Siri-compatible device and had an accidental Siri activation between September 17, 2014 and December 31, 2024, you could be eligible for a payment from Apple as part of a class action lawsuit settlement. Apple in January agreed to pay $95 million to settle a class action lawsuit involving Siri spying accusations, and a website to distribute the funds has now been set up and...
iOS 18

Here Are Apple's Full iOS 18.5 Release Notes

Tuesday May 6, 2025 2:17 pm PDT by
Apple today seeded the release candidate version of iOS 18.5 to developers and public beta testers, giving us a look at the final version of the update that will be provided to the public next week. With the release candidate, Apple provided release notes, so we have a more complete look at the new features that are included in the update, including those that weren't found during the beta...
Mayday Calendar

Apple Acquisition Hints at Upgraded Calendar App on iOS 19 or Beyond

Friday May 9, 2025 9:13 am PDT by
Apple acquired Canadian startup Mayday Labs in April 2024, according to a European Commission listing, spotted by French blog MacGeneration. The acquisition had not received widespread attention from tech publications until now. Apple is legally required to report certain acquisitions to the European Commission, under the terms of the EU's Digital Markets Act. Mayday Labs founder Jeremy...
fortnite apple featured

Epic Games Submits Fortnite to U.S. App Store

Friday May 9, 2025 9:57 am PDT by
As promised, Epic Games today submitted Fortnite to the U.S. App Store, and if approved by Apple, it will mark the first time that the Fortnite app has been available in the United States since 2020. Fortnite will include options to purchase in-app currency from the web rather than through in-app purchase, which is what got the game banned to begin with. This time, though, Apple has been...
airpods pro purple

Apple's Camera Equipped AirPods and Apple Watch Could Launch as Soon as 2027

Thursday May 8, 2025 10:14 am PDT by
Apple is working on versions of the AirPods and Apple Watch that incorporate a camera, and the devices could be ready to launch sometime around 2027, reports Bloomberg. Apple has developed a chip codenamed "Nevis" that will be used for its camera-equipped Apple Watch, while a chip codenamed "Glennie" will be incorporated into the AirPods. Apple is aiming to have the chips ready "by around...

Top Rated Comments

TurboPGT! Avatar
113 months ago
I never install a .0 release, including 10.12.1.0 ...
I install them all. Somehow I survive.
Score: 16 Votes (Like | Disagree)
MrGimper Avatar
113 months ago
Siri is non-functional on my 2014 5k iMac. (It can't find the iMac's internal microphone.) So I hope Apple gets that straightened out. After all, it's Sierra's most-touted feature.
First the headphone jack on the iPhone, now the microphone on iMacs ..... Apple are in a courage overdrive.
Score: 9 Votes (Like | Disagree)
RightMACatU Avatar
113 months ago
Apple becoming the Lucky Luke of software release (faster that its shadow) :D
Score: 4 Votes (Like | Disagree)
chrfr Avatar
113 months ago
I am running the official retail version of Sierra (I was part of the developer beta programme). I since changed my SYSTEM PREFERENCES -> APP STORE -> and changed "your system is set to receive pre-release..." to NO.

Since then that option no longer appears in the APP store.

However, in my updates the BETA for 10.12.1 is showing which is exactly what I do NOT want.

How can I disable this given I've already done the above.
For some reason disabling the "pre-release updates" setting in the App Store system preference isn't working. You can solve this by opening terminal and entering:
sudo defaults delete /Library/Preferences/com.apple.SoftwareUpdate CatalogURL
Enter your password when prompted.
This will set Software Update back to using the standard non-beta catalog.
Score: 3 Votes (Like | Disagree)
Morris Avatar
113 months ago
Interesting, only a day after release, curious to see what this will bring to the table...
They will have been working on 10.12.1 for at least a month, probably much longer, so it is not that surprising. There comes a time when it become too risky to add certain fixes to the 10.12.0 build and you're better off saving them for the first major update.
Score: 3 Votes (Like | Disagree)
closer01 Avatar
113 months ago
I'd love it if my watch would actually open my iMac as promised (yes it's a late 2015 and I have all the latest devices with the latest software updates).
Score: 2 Votes (Like | Disagree)