Apple Seeds Second Beta of macOS Monterey 12.4 to Developers

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

Another release candidate version of macOS Big Sur 11.6.6 has also been seeded.

Related Forum: macOS Monterey

Popular Stories

AirPods Pro 3 Mock Feature

AirPods Pro 3 Just Months Away – Here's What We Know

Friday April 18, 2025 5:16 am PDT by
Despite being more than two years old, Apple's AirPods Pro 2 still dominate the premium wireless‑earbud space, thanks to a potent mix of top‑tier audio, class‑leading noise cancellation, and Apple's habit of delivering major new features through software updates. With AirPods Pro 3 widely expected to arrive in 2025, prospective buyers now face a familiar dilemma: snap up the proven...
iphone 16 pro models 1

17 Reasons to Wait for the iPhone 17

Thursday April 17, 2025 4:12 am PDT by
Apple's iPhone development roadmap runs several years into the future and the company is continually working with suppliers on several successive iPhone models simultaneously, which is why we often get rumored features months ahead of launch. The iPhone 17 series is no different, and we already have a good idea of what to expect from Apple's 2025 smartphone lineup. If you skipped the iPhone...
ipad air windows 11 arm

M2 iPad Air Runs Windows 11 ARM via Emulation, Thanks to EU Rules

Tuesday April 22, 2025 5:01 am PDT by
A developer has demonstrated Windows 11 ARM running on an M2 iPad Air using emulation, which has become much easier since the EU's Digital Markets Act (DMA) regulations came into effect. As spotted by Windows Latest, NTDev shared an instance of the emulation on social media and posted a video on YouTube (embedded below) demonstrating it in action. The achievement relies on new EU regulatory...
iphone 17 air dummy unbox therapy

iPhone 17 Air's Extreme Thinness Demoed in New Video

Tuesday April 22, 2025 10:22 am PDT by
Apple plans to release an all-new super thin iPhone this year, debuting it alongside the iPhone 17, iPhone 17 Pro, and iPhone 17 Pro Max. We've seen pictures of dummy models, cases, and renders with the design, but Lewis Hilsenteger of Unbox Therapy today showed off newer dummy models that give us a better idea of just how thin the "iPhone 17 Air" will be. The iPhone 17 Air is expected to be ...
iOS 18

iOS 18.5 Includes Only a Few Changes So Far

Monday April 21, 2025 11:00 am PDT by
Apple seeded the third beta of iOS 18.5 to developers today, and so far the software update includes only a few minor changes. The changes are in the Mail and Settings apps. In the Mail app, you can now easily turn off contact photos directly within the app, by tapping on the circle with three dots in the top-right corner. In the Settings app, AppleCare+ coverage information is more...
maxresdefault

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. Subscribe to the MacRumors YouTube channel for more videos. 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 ...
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...
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...

Top Rated Comments

Lounge vibes 05 Avatar
39 months ago

That ain't coming..

I've sorta been convinced from other comments, more or less "theres no way apple pushed out this monitor without knowing the quality of webcam recording and that this firmware bug, just snuck up on them."
It’s the identical camera and CPU from the iPhone 11.
It’s been confirmed by several people who *don’t* work for Apple that it is clearly a software issue.
https://www.macrumors.com/2022/03/30/ifixit-studio-display-teardown/
[MEDIA=twitter]1504852957661171734[/MEDIA]
[MEDIA=twitter]1504853923391320070[/MEDIA]
[MEDIA=twitter]1504854752236130308[/MEDIA]
Given that there’s only been one update, and it was the update that was already installed on all of the review units, let’s just give it time.
Score: 8 Votes (Like | Disagree)
Realityck Avatar
39 months ago
macOS 12.4 beta 2 (21F5058e)

Nothing new mentioned in release notes. Same as before.

[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: 7 Votes (Like | Disagree)
HobeSoundDarryl Avatar
39 months ago
Here's hoping this version fully realizes what the U in USB stands for. I miss "just works."

And while they are at it, how about supporting the full speeds of the jacks too? ('https://eclecticlight.co/2022/04/18/m1-thunderbolt-ports-dont-fully-support-usb-3-1-gen-2/')

I'm hoping for a Snow Monterey year announcement at WWDC... maybe even 2 years of Snow if they need it.
Score: 6 Votes (Like | Disagree)
dandeco Avatar
39 months ago
Let's hope they can fix that FireWire video capture bug as discussed here...
https://forums.macrumors.com/threads/dv-capture-bug-on-12-3-1.2339938/
Score: 5 Votes (Like | Disagree)
Demonic16 Avatar
39 months ago
Left & Right buttons on Magic Mouse 2 stoped working in this beta.
Cursor is moving but clicks aren't registered.
Score: 4 Votes (Like | Disagree)
Realityck Avatar
39 months ago

1. This issue didn't exist in 12.2 for me, so no I haven't been complaining since then, you made that up.
2. The issue is on Apple's side, not mine, they need to fix their buggy software and correct the memory leaks.
see #1 ('https://forums.macrumors.com/threads/major-memory-leak-on-12-2-m1-systemstats.2335199/post-30867127')
If that is unrelated to the existing 12.4 beta instance, my bad. But you have multiple posts mentioning it. Sometimes you need to start clean, and its why I recommended a DFU restore to reset system FW also.
Score: 4 Votes (Like | Disagree)