Apple Seeds Third Beta of macOS Monterey 12.4 to Developers [Update: Public Beta Available]

Apple today seeded the third beta of an upcoming macOS Monterey 12.4 update to developers for testing purposes, with the new update coming a week after the release of the second macOS Monterey 12.4 beta.

macOS Monterey 2
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.

According to Apple's release notes, Universal Control in the new iPadOS 15.5 and macOS Monterey 12.4 updates is not compatible with machines running macOS 12.3 or iPadOS 15.4, so Apple suggests that as a workaround, users should update their ‌Universal Control‌ devices to the new betas.

We don't yet know if there are any other features in macOS Monterey 12.4, and nothing new was discovered in the first two betas.

Related Forum: macOS Monterey

Popular Stories

AirPods Pro Firmware Feature

Apple Releases New Firmware for AirPods Pro 2, AirPods Pro 3, and AirPods 4

Thursday November 13, 2025 11:35 am PST by
Apple today released new firmware designed for the AirPods Pro 3, the AirPods 4, and the prior-generation AirPods Pro 2. The AirPods Pro 3 firmware is 8B25, while the AirPods Pro 2 and AirPods 4 firmware is 8B21, all up from the prior 8A358 firmware released in October. There's no word on what's include in the updated firmware, but the AirPods Pro 2, AirPods 4 with ANC, and AirPods Pro 3...
CarPlay Pinned Messages

iOS 26.2 Adds New CarPlay Setting

Thursday November 13, 2025 6:48 am PST by
iOS 26 extended pinned conversations in the Messages app to CarPlay, for quick access to your most frequent chats. However, some drivers may prefer the classic view with a list of individual conversations only, and Apple now lets users choose. Apple released the second beta of iOS 26.2 this week, and it introduces a new CarPlay setting for turning off pinned conversations in the Messages...
Tesla Charging

Tesla Working to Add Apple CarPlay Support to Vehicles

Thursday November 13, 2025 8:31 am PST by
Tesla is working to add support for Apple CarPlay in its vehicles, Bloomberg's Mark Gurman reports. Tesla vehicles rely on its own infotainment software system, which integrates vehicle functions, navigation, music, web browsing, and more. The automaker has been an outlier in foregoing support for Apple CarPlay, which has otherwise become an industry standard feature, allowing users to...
tvOS 26 Profiles

tvOS 26.2 Adds a Useful New Feature to Your Apple TV

Friday November 14, 2025 10:02 am PST by
Starting with the upcoming tvOS 26.2 update, currently in beta, additional profiles created on the Apple TV no longer require their own Apple Account. In the Settings app on the Apple TV, under Profiles and Accounts, anyone can create a new profile by simply entering a name and indicating whether the profile is for a kid. The profile will be associated with the primary user's Apple Account,...
iPhone Pocket Short

iPhone Pocket Now Available to Order, But Already Selling Out

Friday November 14, 2025 6:20 am PST by
Apple recently teamed up with Japanese fashion brand ISSEY MIYAKE to create the iPhone Pocket, a limited-edition knitted accessory designed to carry an iPhone. iPhone Pocket is available to order on Apple's online store starting today, in the United States, France, China, Italy, Japan, Singapore, South Korea, and the United Kingdom. However, it is already completely sold out in the United...
homepod mini thumb feature

New HomePod Mini, Apple TV, and AirTag Were Expected This Year — Where Are They?

Wednesday November 12, 2025 11:42 am PST by
While it was rumored that Apple planned to release new versions of the HomePod mini, Apple TV, and AirTag this year, it is no longer clear if that will still happen. Back in January, Bloomberg's Mark Gurman said Apple planned to release new HomePod mini and Apple TV models "toward the end of the year," while he at one point expected a new AirTag to launch "around the middle of 2025." Yet,...
iOS 26

iOS 26.2 Available Next Month With These 8 New Features

Tuesday November 11, 2025 9:48 am PST by
Apple released the first iOS 26.2 beta last week. The upcoming update includes a handful of new features and changes on the iPhone, including a new Liquid Glass slider for the Lock Screen's clock, offline lyrics in Apple Music, and more. In a recent press release, Apple confirmed that iOS 26.2 will be released to all users in December, but it did not provide a specific release date....
m1 chip slide

Five Years of Apple Silicon: M1 to M5 Performance Comparison

Monday November 10, 2025 1:08 pm PST by
Today marks the fifth anniversary of the Apple silicon chip that replaced Intel chips in Apple's Mac lineup. The first Apple silicon chip, the M1, was unveiled on November 10, 2020. The M1 debuted in the MacBook Air, Mac mini, and 13-inch MacBook Pro. The M1 chip was impressive when it launched, featuring the "world's fastest CPU core" and industry-leading performance per watt, and it's only ...
walmart new ornametns

Walmart Black Friday Deals Begin Today With Low Prices on Headphones, TVs, and More

Friday November 14, 2025 7:55 am PST by
Walmart's Black Friday sale has officially kicked off today, with an online shopping event that's also seeing some matching deals in retail locations. There are quite a few major discounts in this sale, including savings on headphones, TVs, and more. Note: MacRumors is an affiliate partner with Walmart. When you click a link and make a purchase, we may receive a small payment, which helps us...
iOS 26

Everything New in iOS 26.2 Beta 2

Wednesday November 12, 2025 3:29 pm PST by
Apple today provided developers with the second beta of iOS 26.2, which adds a few new features worth knowing about. Measure App Apple's Measure app now features a Liquid Glass design for the level, with two Liquid Glass bubbles instead of white circles. Games App There's now an option to sort games in the Games app Library by size, in addition to Name and Recent. CarPlay The...

Top Rated Comments

Realityck Avatar
47 months ago
macOS 12.4 beta 3 (21F5063e)
M1 Macs is 2.70 GB download OTA

Release notes are limited for beta 3
[HEADING=2]Store Kit[/HEADING]
[HEADING=3]Resolved Issue[/HEADING]

* Fixed an issue so developers using StoreKit 2 can now initiate a subscription offer purchase for a product that the customer currently subscribes to. (89152302)

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

* Universal Control in this release isn’t compatible with macOS 12.3 and iOS 15.4.
Workaround: Use Universal Control between macOS 12.4 beta and iOS 15.5. (91136128)
Score: 6 Votes (Like | Disagree)
nvmls Avatar
47 months ago

Safari went backwards?
Always.
Score: 5 Votes (Like | Disagree)
Realityck Avatar
47 months ago
MacOS 12.4 beta 3

Safari Version 15.5 (17613.2.6)

System Firmware Version: 7459.120.56.0.2 (M1 based Macs)

Darwin Kernel Version 21.5.0: Thu Apr 21 19:53:52 PDT 2022; root:xnu-8020.120.68.131.2~2/RELEASE_ARM64_T6000 arm64

MacOS 12.4 beta 2

Safari Version 15.5 (17613.2.6.1.1)

System Firmware Version: 7459.120.45.0.4 (M1 based Macs)

Darwin Kernel Version 21.5.0: Tue Apr 12 21:18:03 PDT 2022; root:xnu-8020.120.51.121.3~1/RELEASE_ARM64_T8101 arm64
Score: 4 Votes (Like | Disagree)
skardvin Avatar
47 months ago

The last letter of the build number, which is letter e, is same with pervious two beta.
Does this mean that the official version is still far from us?
Typically with .4 releases, Apple tends to do between 5-6 betas, so as we are on the third, I'd say we have at least 3 weeks before it gets released to the public; just in my opinion, though, Apple could release it later or sooner.
Score: 3 Votes (Like | Disagree)
AltecX Avatar
47 months ago

MacOS 15.4 beta 3

Safari Version 15.5 (17613.2.6)

System Firmware Version: 7459.120.56.0.2 (M1 based Macs)

Darwin Kernel Version 21.5.0: Thu Apr 21 19:53:52 PDT 2022; root:xnu-8020.120.68.131.2~2/RELEASE_ARM64_T6000 arm64

MacOS 15.4 beta 2

Safari Version 15.5 (17613.2.6.1.1)

System Firmware Version: 7459.120.45.0.4 (M1 based Macs)

Darwin Kernel Version 21.5.0: Tue Apr 12 21:18:03 PDT 2022; root:xnu-8020.120.51.121.3~1/RELEASE_ARM64_T8101 arm64
Safari went backwards?
Score: 3 Votes (Like | Disagree)
nortonandreev Avatar
47 months ago
This arrow in Finder still doesn't do anything.



Attachment Image
Score: 3 Votes (Like | Disagree)