Apple Seeds Third macOS Monterey 12.3 Beta to Developers

Apple today seeded the third beta of an upcoming macOS macOS Monterey 12.3 update to developers for testing purposes, with the new software coming a week after the release of the second macOS Monterey 12.3 beta.

macOS Monterey on MBP Feature
Registered developers can download the beta through the Apple Developer Center and after the appropriate profile is installed, betas will be available through the Software Update mechanism in System Preferences. There is also a macOS 11.6.5 update for those still running macOS Big Sur.

macOS Monterey 12.3 is a major update that introduces Universal Control, a feature that Apple first teased at WWDC and then delayed for several months. ‌Universal Control‌ is designed to allow you to use a single mouse/trackpad and keyboard across multiple Macs and iPads (with iPads running iPadOS 15.4).

After updating your devices to macOS 12.3 and iPadOS 15.4, ‌Universal Control‌ works automatically, allowing your Mac's cursor and keyboard to work on the iPad and vice versa. It's simple and intuitive to use.

maOS Monterey 12.3 adds support for updating the AirPods firmware when the earbuds are connected to a Mac, plus it deprecates kernel extensions used by Dropbox and Microsoft OneDrive, and it eliminates Python 2, with Apple instructing developers to use an alternative scripting language like Python 3 going forward.

There are also new emoji characters, including melting face, biting lip, heart hands, bubbles, beans, face with diagonal mouth, palm up hand, eggs, troll, low battery, coral, lotus, and more.

Related Forum: macOS Monterey

Popular Stories

iPhone 17 Pro 3 4ths Perspective Aluminum Camera Module 1

iPhone 17 Pro Launching Later This Year With These 12 New Features

Sunday April 13, 2025 7:52 am PDT by
While the iPhone 17 Pro and iPhone 17 Pro Max are not expected to launch until September, there are already plenty of rumors about the devices. Below, we recap key changes rumored for the iPhone 17 Pro models as of April 2025: Aluminum frame: iPhone 17 Pro models are rumored to have an aluminum frame, whereas the iPhone 15 Pro and iPhone 16 Pro models have a titanium frame, and the iPhone ...
Beyond iPhone 13 Better Triad

Apple's 20th Anniversary iPhone May Finally Go All Screen

Tuesday April 15, 2025 6:31 am PDT by
Apple is preparing a "bold" new iPhone Pro model for the iPhone's 20th anniversary in 2027, according to Bloomberg's Mark Gurman. As part of what's being described as a "major shake-up," Apple is said to be developing a design that makes more extensive use of glass – and this could point directly to the display itself. Here's the case for Apple releasing a truly all-screen iPhone with no...
iOS 19 Roundup Feature

iOS 19 Will Add These New Features to Your iPhone

Tuesday April 15, 2025 7:37 am PDT by
The first iOS 19 beta is less than two months away, and there are already a handful of new features that are expected with the update. Apple should release 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...
CarPlay Hero

Apple Releases Wireless CarPlay Fix

Wednesday April 16, 2025 11:28 am PDT by
If you have been experiencing issues with wireless CarPlay in your vehicle lately, it was likely due to a software bug that has now been fixed. Apple released iOS 18.4.1 today, and the update's release notes say it "addresses a rare issue that prevents wireless CarPlay connection in certain vehicles." If wireless CarPlay was acting up for you, updating your iPhone to iOS 18.4.1 should...
Apple 2025 Thumb 1

10 Products Still Coming From Apple in 2025

Friday April 11, 2025 4:14 pm PDT by
Apple may have updated several iPads and Macs late last year and early this year, but there are still multiple new devices that we're looking forward to seeing in 2025. Most will come in September or October, but there could be a few surprises before then. We've rounded up a list of everything that we're still waiting to see from Apple in 2025. iPhone 17, 17 Air, and 17 Pro - We get...
Foldable iPhone 2023 Feature Homescreen

Foldable iPhone Resolutions Leak With Under-Screen Camera Tipped

Monday April 14, 2025 3:12 am PDT by
Apple's upcoming foldable iPhone (or "iPhone Fold") will feature two screens as part of its book-style design, and a Chinese leaker claims to know the resolutions for both of them. According to the Weibo-based account Digital Chat Station, the inner display, which is approximately 7.76 inches, will use a 2,713 x 1,920 resolution and feature "under-screen camera technology." Meanwhile, the...
iOS 18

Apple Releases iOS 18.4.1 With Bug Fixes

Wednesday April 16, 2025 10:11 am PDT by
Apple today released iOS 18.4.1 and iPadOS 18.4.1, minor updates to the iOS 18 and iPadOS 18 operating systems that came out last September. iOS 18.4.1 and iPadOS 18.4.1 come two weeks after the launch of iOS 18.4 and iPadOS 18.4. The new software can be downloaded on eligible iPhones and iPads over-the-air by going to Settings > General > Software Update. There have been complaints about ...
Apple Bristol Current

An Apple Store in the UK is Permanently Closing Later This Year

Monday April 14, 2025 7:33 am PDT by
Apple has confirmed that it will be permanently closing its retail store in the heart of Bristol, England, and there is no replacement in sight. Apple Bristol in 2023 Apple Bristol will be closing its doors on Saturday, August 9, due to redevelopment plans at the Cabot Circus Shopping Centre, and the adjacent Bristol Shopping Quarter. According to news reports, and a building application, the ...
iPhone 6s MacRumors YouTube

Apple Says These Products Are Now Vintage

Tuesday April 15, 2025 9:53 am PDT by
Apple today updated its vintage products list to add the 2018 Mac mini and the iPhone 6s, devices that will get more limited service and repairs now that they are considered vintage. The iPhone 6s initially launched in 2015, but Apple kept it around as a low-cost device until 2018, which is why it is only now being added to the vintage list. The iPhone 6s had Apple's A9 chip, and it was...

Top Rated Comments

Realityck Avatar
41 months ago

Really hope this is the release with major issues addressed and feature complete. I’d like to upgrade, just for universal control and the latest privacy and security features, but Apple’s poor software quality demands precaution before upgrading.
So your not really participating in beta testing, right? Just making comments.
Score: 21 Votes (Like | Disagree)
BWhaler Avatar
41 months ago
Really hope this is the release with major issues addressed and feature complete. I’d like to upgrade, just for universal control and the latest privacy and security features, but Apple’s poor software quality demands precaution before upgrading.
Score: 8 Votes (Like | Disagree)
Realityck Avatar
41 months ago
[SPOILER="macOS Monterey 12.3 Beta 3 Release Notes"]
[HEADING=2]FaceTime[/HEADING]
[HEADING=3]Known Issues[/HEADING]

* On iOS and macOS, it’s possible to trigger taking a photo of a participant when in a Group FaceTime call. On iOS, this could occur when you tap the Grid button or the bottom-left corner of the screen. On macOS, this could occur when you click the Grid button or the top-right corner of the window. (88720303)

[HEADING=2]Kernel[/HEADING]
[HEADING=3]Deprecations[/HEADING]

* The kernel extensions used by Dropbox Desktop Application and Microsoft OneDrive are no longer available. Both service providers have replacements for this functionality; Dropbox is currently in beta. (85890896)

[HEADING=2]LibreSSL[/HEADING]
[HEADING=3]Known Issues[/HEADING]

* LibreSSL 3.3 has changed the default digest type of openssl enc Terminal command to SHA256. Files previously encrypted with an older version of OpenSSL might fail to decrypt. (87763613)
Workaround: The openssl enc command should be run by adding the -md md5argument.

[HEADING=2]Mobile Software Update[/HEADING]
[HEADING=3]Resolved in macOS Monterey 12.3 Beta 3[/HEADING]

* Fixed: Installing to an empty volume from macOS Recovery might fail. (87730473)

[HEADING=2]Python[/HEADING]
[HEADING=3]Deprecations[/HEADING]

* Python 2.7 was removed from macOS in this update. Developers should use Python 3 or an alternative language instead. (39795874)

[HEADING=2]Safari[/HEADING]
[HEADING=3]Known Issues[/HEADING]

* Safari might crash upon loading webpages on a Mac with Apple silicon. (88222677)

[HEADING=2]ScreenCaptureKit[/HEADING]
[HEADING=3]Known Issues[/HEADING]

* In ScreenCaptureKit ('https://developer.apple.com/documentation/screencapturekit'), if an origin other than (0,0) is specified in the destinationRect ('https://developer.apple.com/documentation/screencapturekit/scstreamconfiguration/3919822-destinationrect')or sourceRect ('https://developer.apple.com/documentation/screencapturekit/scstreamconfiguration/3919829-sourcerect'), the contentRect is incorrect. (87363220)

[HEADING=2]Universal Control[/HEADING]
[HEADING=3]Known Issues[/HEADING]

* Unexpected disconnections might occur on initial connection. (88106231)
Workaround: Sleep, then wake the device, and try again.
* Drag-and-drop scenarios might not work for some file types and apps. (88106322)
* Some third-party keyboards and mice might encounter issues when using additional functionality, like scroll wheels. (88106362)

[HEADING=2]WebKit[/HEADING]
[HEADING=3]Known Issues[/HEADING]

* Using the App Store might lead to an authentication loop in which the HTML sheet has no content. (87850345)

[HEADING=3]Deprecations[/HEADING]

* Support for inline viewing of PostScript files was removed. (88172449


[/SPOILER]
Score: 7 Votes (Like | Disagree)
Realityck Avatar
41 months ago

Are you complaining, I can't tell. It makes sense to have administrator status for performing an administrator function. I like a bad guy have administrator status in my main login, and got no login prompt before downloading. I did need to type a password before install, but that seems fair. I know, I know, I should have separate logins, don't remind me
Its a legit observation.

For many 12.0, 12.0.1, 12.1, 12.2 Monterey betas in the past it was at the end of the install. Download, preparation, prompted Admin credential then it installs.

12.3 Beta 2 and this Beta 3 have the Admin credential event now occurring before the whole installation process. Its functional better because you don't have to wait until the end of preparation to return to do that.
Score: 6 Votes (Like | Disagree)
Realityck Avatar
41 months ago
Good deal want to see how the third beta does against some issues.

macOS 12.3 beta 3 (21E5212f). Once again it starts by asking for admin password before downloading. M1 download is 2.92 GB.
Score: 5 Votes (Like | Disagree)
steve333 Avatar
41 months ago
Improve safari already! It's not like you don't have the money, Apple. Make it the best browser for the Mac, not just a nice to look at browser that misbehaves all the time
Score: 5 Votes (Like | Disagree)