Apple Seeds First Beta of macOS Monterey 12.1 to Developers

Apple today seeded the first beta of an upcoming macOS Monterey 12.1 update to developers for testing purposes, with the new software coming just a couple days after the official release of macOS Monterey.

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.

According to Apple's release notes, the update enables support for graphics cards that integrate the AMD Radeon 6600XT GPU. There are no other new features mentioned aside from bug fixes. We'll update this article should we find anything else new after installing the beta.

Related Forum: macOS Monterey

Popular Stories

iPhone 17 Pro Blue Feature Tighter Crop

iPhone 17 Pro Launching in Three Months With These 12 New Features

Saturday June 14, 2025 5:45 pm PDT by
The iPhone 17 Pro and iPhone 17 Pro Max are three months away, and there are plenty of rumors about the devices. Below, we recap key changes rumored for the iPhone 17 Pro models as of June 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 X through iPhone 14 Pro have a...
apple watch ultra 2 new black

Apple Watch Ultra 3 Finally Coming After Two-Year Hiatus

Monday June 16, 2025 8:45 am PDT by
Apple will finally deliver the Apple Watch Ultra 3 sometime this year, according to analyst Jeff Pu of GF Securities Hong Kong (via @jukanlosreve). The analyst expects both the Apple Watch Series 11 and Apple Watch Ultra 3 to arrive this year (likely alongside the new iPhone 17 lineup, if previous launches are anything to go by), according to his latest product roadmap shared with...
Logitech Logo Feature

Logitech Announces Two New Accessories for WWDC

Friday June 13, 2025 7:22 am PDT by
Alongside WWDC this week, Logitech announced notable new accessories for the iPad and Apple Vision Pro. The Logitech Muse is a spatially-tracked stylus developed for use with the Apple Vision Pro. Introduced during the WWDC 2025 keynote address, Muse is intended to support the next generation of spatial computing workflows enabled by visionOS 26. The device incorporates six degrees of...
iPadOS 26 App Windowing

Apple Explains Why iPads Don't Just Run macOS

Friday June 13, 2025 7:46 am PDT by
iPadOS 26 allows iPads to function much more like Macs, with a new app windowing system, a swipe-down menu bar at the top of the screen, and more. However, Apple has stopped short of allowing iPads to run macOS, and it has now explained why. In an interview this week with Swiss tech journalist Rafael Zeier, Apple's software engineering chief Craig Federighi said that iPadOS 26's new Mac-like ...
iphone 16 pro models 1

17 Reasons to Wait for the iPhone 17

Thursday June 12, 2025 8:58 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...
apple watch ultra snow

6 Features Coming to the Apple Watch Ultra 3

Tuesday February 25, 2025 9:00 am PST by
The Apple Watch Ultra 3 is expected to launch later this year, arriving two years after the previous model with a series of improvements. While no noticeable design changes are expected for the third generation since the company tends to stick with the same Apple Watch design through three generations before changing it, there are a series of internal upgrades on the way. By the time the ...
terminal macos tahoe

Apple's Terminal App Gets Colorful Redesign in macOS Tahoe

Monday June 16, 2025 4:12 am PDT by
Apple's Terminal app is getting a visual refresh in macOS Tahoe, and it's the first notable design update since the command-line tool debuted. The updated Terminal will support 24-bit color and Powerline fonts, according to Apple's State of the Platforms presentation at WWDC25. The app will also adopt the new Liquid Glass aesthetic with redesigned themes that align with macOS 26's broader...
iOS 26 Feature

Apple Seeds Revised iOS 26 Developer Beta to Fix Battery Issue

Friday June 13, 2025 10:15 am PDT by
Apple today provided developers with a revised version of the first iOS 26 beta for testing purposes. The update is only available for the iPhone 15 and iPhone 16 models, so if you're running iOS 26 on an iPhone 14 or earlier, you won't see the revised beta. Registered developers can download the new beta software through the Settings app on each device. The revised beta addresses an...

Top Rated Comments

Kylo83 Avatar
48 months ago
Hope this brings safari 120hz on the new MacBooks
Score: 8 Votes (Like | Disagree)
tywebb13 Avatar
48 months ago
Build number is 21C5021h
Score: 4 Votes (Like | Disagree)
ElectricPotato Avatar
48 months ago

How bad are the bugs in the .0 release?
I got brave and leaped. Pleasantly, no compatibility issues (VMWare Fusion and Mathematica), no obvious breakage (like Mail was on Catalina .0). No weird hardware behavior (MBP 2018, Mini 2018). That's obviously the way it should be, but after recent history I did not have positive expectations.
Score: 3 Votes (Like | Disagree)
Acidsplat Avatar
48 months ago

I can guarantee it won’t be fixed I bet they know about it and they want it that way, I doubt it’s a bug as they wouldn’t release a new product with such a major flaw, the whole pro motion thing with the new MacBooks is hyped to much; safari will stay at 60hz
I don't think it's intentional because they specifically used scrolling in Safari in the Apple Event to demonstrate how fluid the ProMotion screen is.

Look at 36:15
Score: 3 Votes (Like | Disagree)
Ansath Avatar
48 months ago

No PB yet? Normally comes 24hr after Developer one, but still not showing.
It’s out, you were just an hour too early.
Score: 2 Votes (Like | Disagree)
Freeangel1 Avatar
48 months ago
Can someone ASK APPLE execs directly and find out if External GPU use will ever be supported in Monterey for Apple Silicon?

It's bad enough the machine is totally NOT upgradable. RAM, CPU, SSD.

The least they could do is allow use of external GPU's or video cards.
Score: 2 Votes (Like | Disagree)