Apple Seeds Third Beta of macOS Monterey 12.1 to Developers - MacRumors
Skip to Content

Apple Seeds Third Beta of macOS Monterey 12.1 to Developers

Apple today seeded the third beta of an upcoming macOS Monterey 12.1 update to developers for testing purposes, with the new software coming a week after the second beta and three weeks after the official release of macOS Monterey.

macOS Monterey on MBP Feature
Registered developers can download macOS Monterey 12.1 beta profile through the Apple Developer Center and after the appropriate profile is installed, the beta will be available through the Software Update mechanism in System Preferences. Apple has also seeded a new beta of macOS Big Sur 11.6.2 for those who have not yet updated to Monterey or who can't on an older machine.

macOS Monterey 12.1 brings SharePlay to Macs for the first time. SharePlay is a new feature that's designed to let you watch TV, listen to music, and play games with friends and family members over FaceTime.

facetime screen sharing
SharePlay allows all kinds of apps to work with ‌FaceTime‌, with content synced for all people who are part of the ‌FaceTime‌ call. You can listen to music with Apple Music and access shared playlists, watch synced TV shows and movies together, work out together, and even share your screen for things like group trip planning or device troubleshooting.

Apple designed SharePlay to work with first-party app options like Apple TV, Apple Fitness+, and ‌Apple Music‌, but there's also an API for developers so third-party apps can also use SharePlay ‌FaceTime‌ features for games and other experiences.

SharePlay is already available in the release versions of iOS 15.1, iPadOS 15.1, and tvOS 15.1, so the Monterey 12.1 update brings Macs in line with other Apple devices.

Related Forum: macOS Monterey

Popular Stories

iPhone Duo Display Cracking

Apple Alerts Stores to iPhone Duo's Display Cracking Issue

Friday October 30, 2026 3:20 pm PDT by
In a memo shared with Apple Stores and Apple Authorized Service Providers this week, and later obtained by MacRumors, Apple provided technicians with guidance on how to diagnose and address the iPhone Duo's inner display cracking issue. If a customer reports the issue, Apple advised technicians to inspect the iPhone Duo and repair or replace it in accordance with their standard procedures....
apple pro tell logo

Apple Launching Five New Products This Friday

Monday November 2, 2026 1:22 am PST by
Apple is releasing five new products this Friday, November 6, following pre-orders that opened last week, including its first touchscreen MacBook Pro models. The following new products will be available from Friday: iPad mini with OLED display and A20 Pro chip iMac with M6 chip 14-inch MacBook Pro with M6 chip 14-inch MacBook Pro with OLED touchscreen 16-inch MacBook Pro with OLED...
Everything New Your iPhone Can Do on iOS 27

14 New Things Your iPhone Can Do in iOS 27.2

Friday October 30, 2026 12:42 pm PDT by
Apple released iOS 27.2 on October 26, bringing enhancements to Siri AI, adding Suggestions in Messages, and sneaking in a string of smaller additions across Photos, Podcasts, Games, Apple TV, and FaceTime. iOS 27.2 is available to download to your device now via Settings ➝ General ➝ Software Update. Note that some features may not be available in all regions or on all iPhone models....

Top Rated Comments

AltecX Avatar
65 months ago

great question. There is an audience for this, but it is minuscule compared to the population that needs a stable, “it just works” operating system.

what’s amazing to me is how many aspects of the os break each release which get no additional functionality.
I'd like to see them pull another 10.6.
Just take a full update to do nothing but fix bugs, clean up code, do optimizations and refinements. Spend time tweaking and perfecting the already included tools. Not add anything that would take a very minimum amount of work to do. Just focus on the core OS itself and what's already included.
To be frank I'd really like to see MS do the exact same. Take a few update cycles to do NOTHING but fixing open bugs, cleaning up any code that needs it and spending time to re-write what needs to be. Just do what they can for 6mo-12mo focusing ONLY on bugs and performance. Don't add anything new. Just all hands-on deck to FIX.
Score: 22 Votes (Like | Disagree)
65 months ago
How many people are actually going to use all of this SharePlay stuff? I mean, really? It sounds cool, but how many people in their busy lives are really all that bothered about it?
Score: 15 Votes (Like | Disagree)
65 months ago

Is Universal Control enabled and are the memory leaks fixed yet?
A question that matters.
Score: 13 Votes (Like | Disagree)
Wilburx3 Avatar
65 months ago
Is Universal Control enabled and are the memory leaks fixed yet?
Score: 12 Votes (Like | Disagree)
65 months ago
I would really hope they prioritise fixing issues in existing features first. For example, the trackpad issue....
Score: 11 Votes (Like | Disagree)
65 months ago
Any new emojis ?

…said no one ever.
Score: 10 Votes (Like | Disagree)
Latest Stories
Here's What Spotify Looks Like on Apple's HomeView
Here's What Spotify Looks Like on Apple's HomeView
4 minutes ago
iOS 27.2.1 Coming Soon, iOS 27.3 Beta Likely Available Tomorrow
iOS 27.2.1 Coming Soon, iOS 27.3 Beta Likely Available Tomorrow
44 minutes ago
Mark Gurman: Apple Initially Aimed to Release iPhone Duo in November
Mark Gurman: Apple Initially Aimed to Release iPhone Duo in November
1 hour ago
Best Early Black Friday Deals on Apple Products Available Now
Best Early Black Friday Deals on Apple Products Available Now
2 hours ago
Apple Isn't Done With 2026: Here's What's Still Coming
Apple Isn't Done With 2026: Here's What's Still Coming
2 hours ago
Apple 'HomeView Ultra' With 9-Inch 360º Screen Detailed in New Report
Apple 'HomeView Ultra' With 9-Inch 360º Screen Detailed in New Report
2 hours ago
Apple TV 4K Pre-Order Discount Returns at Amazon
Apple TV 4K Pre-Order Discount Returns at Amazon
2 hours ago
Zoom and These Microsoft Apps Now Optimized for iPhone Duo
Zoom and These Microsoft Apps Now Optimized for iPhone Duo
3 hours ago
Canva Brings Free All-in-One Affinity App to iPad
Canva Brings Free All-in-One Affinity App to iPad
3 hours ago
iPhone Duo: Latest Buyer Wait Times
iPhone Duo: Latest Buyer Wait Times
4 hours ago
iPhone Duo Owners Can't Change Display Zoom After Setup
iPhone Duo Owners Can't Change Display Zoom After Setup
40 minutes ago
Apple HomeView Could Double as a Security Camera
Apple HomeView Could Double as a Security Camera
7 hours ago
Apple Launching Five New Products This Friday
Apple Launching Five New Products This Friday
8 hours ago
Nearly Every M5 MacBook Air Now $200 Off on Amazon
Nearly Every M5 MacBook Air Now $200 Off on Amazon
23 hours ago
Apple's HomeView Ships With Six-Month-Old Software
Apple's HomeView Ships With Six-Month-Old Software
1 day ago
Three New iPads Rumored to Launch in First Half of 2027
Three New iPads Rumored to Launch in First Half of 2027
1 day ago
Apple Offers Steps to Fix Daylight Saving Time Bug on Apple Watch
Apple Offers Steps to Fix Daylight Saving Time Bug on Apple Watch
1 day ago
Apple Watch Ultra 4 Hits All-Time Low Price With Amazon's $99 Discount
Apple Watch Ultra 4 Hits All-Time Low Price With Amazon's $99 Discount
2 days ago
Reminder: Apple's Big Discount on Beats 360 Ear Cushions Ends Today
Reminder: Apple's Big Discount on Beats 360 Ear Cushions Ends Today
2 days ago
Here's a New Tour of Apple's HomeView Software
Here's a New Tour of Apple's HomeView Software
2 days ago
Apple Reveals New iPad Mini's Battery Capacity
Apple Reveals New iPad Mini's Battery Capacity
2 days ago
Top Stories: Apple's Big MacBook Pro, iPad mini and iMac Updates
Top Stories: Apple's Big MacBook Pro, iPad mini and iMac Updates
2 days ago
'Pluribus' Season 2 Reportedly Starts Production Today
'Pluribus' Season 2 Reportedly Starts Production Today
2 days ago
iPhone 18 Pro Sales Surge in China, Offsetting Decline in U.S. and Japan
iPhone 18 Pro Sales Surge in China, Offsetting Decline in U.S. and Japan
2 days ago
HomeView Software 27.2: Wallpapers, Control Center, and More
HomeView Software 27.2: Wallpapers, Control Center, and More
3 days ago
Apple Alerts Stores to iPhone Duo's Display Cracking Issue
Apple Alerts Stores to iPhone Duo's Display Cracking Issue
3 days ago
iOS 27.3 Will Enable These Apple Intelligence Features in China
iOS 27.3 Will Enable These Apple Intelligence Features in China
3 days ago
Apple Says iOS 27.3 Beta Coming Next Week
Apple Says iOS 27.3 Beta Coming Next Week
3 days ago
Apple's Flash Storage Suppliers Are Finally 'Getting Their Revenge'
Apple's Flash Storage Suppliers Are Finally 'Getting Their Revenge'
3 days ago
14 New Things Your iPhone Can Do in iOS 27.2
14 New Things Your iPhone Can Do in iOS 27.2
3 days ago