Apple Seeds macOS Monterey 12.4 Release Candidate to Developers

Apple today seeded the release candidate version 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 fourth 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.

When paired with a Studio Display, macOS Monterey 12.4 supports new 15.5 Studio Display firmware, which improves the quality of the webcam on the machine. According to Apple's release notes, the Studio Display firmware refines camera tuning, offering improved noise reduction, contrast, and framing.

There's also an update for the Podcasts app, with Apple adding a setting that limits the number of episodes stored on a Mac and automatically deletes older ones.

Related Forum: macOS Monterey

Popular Stories

iPhone 17 Pro 3 4ths Perspective Aluminum Camera Module 1

New iPhone 17 Pro Details: Brighter Display, Best Battery Life, and More

Wednesday September 3, 2025 5:33 am PDT by
Apple's iPhone 17 Pro and iPhone 17 Pro Max models will feature a number of significant display, thermal, and battery improvements, according to new late-stage rumors. According to the Weibo leaker known as "Instant Digital," the iPhone 17 Pro models will feature displays with higher brightness, making it more suitable for use in direct sunlight for prolonged periods. The iPhone 16 Pro and...
iPhone 17 Pro Iridescent Feature 2

iPhone 17 and iPhone 17 Pro Prices Estimated Ahead of Apple Event Next Week

Tuesday September 2, 2025 1:50 pm PDT by
Just one week before Apple is expected to unveil the iPhone 17 series, an analyst has shared new price estimates for the devices. Here are J.P. Morgan analyst Samik Chatterjee's price estimates for the iPhone 17 series in the United States, according to 9to5Mac: Model Starting Price Model Starting Price Change iPhone 16 $799 iPhone 17 ...
iPhone 17 Pro Iridescent Feature 2

iPhone 17 Pro Clear Case Leak Reveals Three Key Changes

Sunday August 31, 2025 1:26 pm PDT by
Apple is expected to unveil the iPhone 17 series on Tuesday, September 9, and last-minute rumors about the devices continue to surface. The latest info comes from a leaker known as Majin Bu, who has shared alleged images of Apple's Clear Case for the iPhone 17 Pro and Pro Max, or at least replicas. Image Credit: @MajinBuOfficial The images show three alleged changes compared to Apple's iP...
iphone 16 pro ghost hand

iPhone 17 Pro: 5 Reasons Not to Upgrade This Year

Monday September 1, 2025 4:35 am PDT by
Apple will launch its new iPhone 17 series this month, and the iPhone 17 Pro models are expected to get a new design for the rear casing and the camera area. But more significant changes to the lineup are not expected until next year, when the iPhone 18 models arrive. If you're thinking of trading in your iPhone for this year's latest, consider the following features rumored to be coming to...
iPhone 17 Pro Dark Blue and Orange

iPhone 17 Release Date, Pre-Orders, and What to Expect

Thursday August 28, 2025 4:08 am PDT by
An iPhone 17 announcement is a dead cert for September 2025 – Apple has already sent out invites for an "Awe dropping" event on Tuesday, September 9 at the Apple Park campus in Cupertino, California. The timing follows Apple's trend of introducing new iPhone models annually in the fall. At the event, Apple is expected to unveil its new-generation iPhone 17, an all-new ultra-thin iPhone 17...
Apple Watch Ultra 2 Complications

Apple Watch Ultra 3 Coming Next Week: Eight Reasons to Upgrade

Thursday September 4, 2025 7:38 am PDT by
We're only days away from Apple's "Awe dropping" fall event scheduled to take place on Tuesday, September 9 – and along with the new iPhone 17 series, we're going to get a new version of the Apple Watch Ultra for the first time since 2023. By the time the Ultra 3 is unveiled, it will have been two years since the previous model arrived. The intervening period has left plenty of room for...

Top Rated Comments

frou Avatar
43 months ago

The questions I always have for each update are: What's new, what's fixed, what's improved, what bugs have still not been addressed. Is this information super-secret so MacRumors can't post it in the articles?
Feast your eyes on the extensive release notes provided by Apple /s

https://developer.apple.com/documentation/macos-release-notes/macos-12_4-release-notes
Score: 12 Votes (Like | Disagree)
Realityck Avatar
43 months ago
MacOS 12.4 RC

Safari Version 15.5 (17613.2.7.1.8)

System Firmware Version: 7459.121.3 (M1 based Macs)

Darwin Kernel Version 21.5.0: Tue Apr 26 21:08:29 PDT 2022; root:xnu-8020.121.3~4/RELEASE_ARM64_T8101 arm64

MacOS 12.4 beta 4

Safari Version 15.5 (17613.2.7.1.6)

System Firmware Version: 7459.121.2 (M1 based Macs)

Darwin Kernel Version 21.5.0: Tue Apr 26 23:21:38 PDT 2022; root:xnu-8020.121.3~5/RELEASE_ARM64_T8101 arm64
Score: 9 Votes (Like | Disagree)
Realityck Avatar
43 months ago

It'll probably be released tuesday.
Can't wait to update
RC can still have another RC 2 occur if they discover some issue. ;)

Even though WWDC is 25 days away, MacOS 12.x might incur another beta cycle leading up to and past WWDC.
Score: 5 Votes (Like | Disagree)
sdf Avatar
43 months ago

I still see Disk Utility unexpectedly quitting, send data to Apple.
I wouldn't say Disk Utility ever unexpectedly quits, because at this point I've grown to expect it.

It's a "stay on the main path or else" app IMO.
Score: 5 Votes (Like | Disagree)
rpmurray Avatar
43 months ago

Feast your eyes on the extensive release notes provided by Apple /s
So basically, developers are flying blind because Apple can't be bothered to provide information that would make their lives (and ours) easier.
Score: 5 Votes (Like | Disagree)
falkon-engine Avatar
43 months ago

MacOS 15.4 RC

Safari Version 15.5 (17613.2.7.1.8)

System Firmware Version: 7459.121.3 (M1 based Macs)

Darwin Kernel Version 21.5.0: Tue Apr 26 21:08:29 PDT 2022; root:xnu-8020.121.3~4/RELEASE_ARM64_T8101 arm64

MacOS 15.4 beta 4

Safari Version 15.5 (17613.2.7.1.6)

System Firmware Version: 7459.121.2 (M1 based Macs)

Darwin Kernel Version 21.5.0: Tue Apr 26 23:21:38 PDT 2022; root:xnu-8020.121.3~5/RELEASE_ARM64_T8101 arm64
You the mvp thanks for the info this is always the question I have for each update. Build number, kernel version, firmware/osloader version.
Score: 4 Votes (Like | Disagree)