Apple Seeds First Betas of macOS Sequoia 15.3 and More to Developers

Apple today provided developers with the first beta of an upcoming macOS Sequoia 15.3 update, with the new update coming a week after Apple released macOS Sequoia 15.2. Apple has also seeded new betas of watchOS 11.3, tvOS 18.3, and visionOS 2.3.

macOS Sequoia Feature
The betas are available to registered developers at this time, and can be downloaded from the settings app on each device.

We don't yet know what's included in the macOS Sequoia 15.3 update or the other updates, but we'll update this article should anything new be found after we download and install the new software.

Popular Stories

Apple Wallet ID Illinois

Apple Plans to Expand iPhone Driver's Licenses to These 7 U.S. States

Wednesday December 24, 2025 8:40 am PST by
In select U.S. states, residents can add their driver's license or state ID to the Apple Wallet app on the iPhone and Apple Watch, and then use it to display proof of identity or age at select airports and businesses, and in select apps. The feature is currently available in 13 U.S. states and Puerto Rico, and it is expected to launch in at least seven more in the future. To set up the...
iPhone Top Left Hole Punch Face ID Feature Purple

iPhone 18 Pro Launching Next Year With These 12 New Features

Tuesday December 23, 2025 8:36 am PST by
While the iPhone 18 Pro and iPhone 18 Pro Max are not expected to launch for another nine months, there are already plenty of rumors about the devices. Below, we have recapped 12 features rumored for the iPhone 18 Pro models. The same overall design is expected, with 6.3-inch and 6.9-inch display sizes, and a "plateau" housing three rear cameras Under-screen Face ID Front camera in...
iOS 26

iOS 26.2 Adds These 8 New Features to Your iPhone

Monday December 22, 2025 8:47 am PST by
Earlier this month, Apple released iOS 26.2, following more than a month of beta testing. It is a big update, with many new features and changes for iPhones. iOS 26.2 adds a Liquid Glass slider for the Lock Screen's clock, offline lyrics in Apple Music, and more. Below, we have highlighted a total of eight new features. Liquid Glass Slider on Lock Screen A new slider in the Lock...
maxresdefault

Where's the New Apple TV?

Monday December 22, 2025 11:30 am PST by
Apple hasn't updated the Apple TV 4K since 2022, and 2025 was supposed to be the year that we got a refresh. There were rumors suggesting Apple would release the new Apple TV before the end of 2025, but it looks like that's not going to happen now. Subscribe to the MacRumors YouTube channel for more videos. Bloomberg's Mark Gurman said several times across 2024 and 2025 that Apple would...
maxresdefault

10 Mac Apps Worth Trying in 2026

Wednesday December 24, 2025 9:27 am PST by
2026 is almost upon us, and a new year is a good time to try out some new apps. We've rounded up 10 excellent Mac apps that are worth checking out. Subscribe to the MacRumors YouTube channel for more videos. Alt-Tab (Free) - Alt-Tab brings a Windows-style alt + tab thumbnail preview option to the Mac. You can see a full window preview of open apps and app windows. One Thing (Free) -...
Foldable iPhone 2023 Feature Iridescent Search

Samsung Developing 'Wide Fold' With iPhone Fold-Like Design Ahead of Apple's 2026 Launch

Tuesday December 23, 2025 11:55 am PST by
Samsung is working on a new foldable smartphone that's wider and shorter than the models that it's released before, according to Korean news site ETNews. The "Wide Fold" will compete with Apple's iPhone Fold that's set to launch in September 2026. Samsung's existing Galaxy Z Fold7 display is 6.5 inches when closed, and 8 inches when open, with a 21:9 aspect ratio when folded and a 20:18...
iOS 26

iOS 26.3 Brings AirPods-Like Pairing to Third-Party Devices in EU Under DMA

Monday December 22, 2025 3:20 pm PST by
The European Commission today praised the interoperability changes that Apple is introducing in iOS 26.3, once again crediting the Digital Markets Act (DMA) with bringing "new opportunities" to European users and developers. The Digital Markets Act requires Apple to provide third-party accessories with the same capabilities and access to device features that Apple's own products get. In iOS...
iphone fold 3d print

Have a 3D Printer? You Can Make Your Own iPhone Fold Dummy

Tuesday December 23, 2025 1:31 pm PST by
Apple is working on a foldable iPhone that's set to come out in September 2026, and rumors suggest that it will have a display that's around 5.4 inches when closed and 7.6 inches when open. Exact measurements vary based on rumors, but one 3D designer has created a mockup based on what we've heard so far. On MakerWorld, a user named Subsy has uploaded a 1:1 iPhone Fold replica (via Macworld), ...
iPhone Fold Vertical Feature

Why Apple's Foldable iPhone May Be Smaller Than Expected

Tuesday December 23, 2025 5:21 am PST by
Apple's first foldable iPhone, rumored for release next year, may turn out to be smaller than most people imagine, if a recent report is anything to go by. According to The Information, the outer display on the book-style device will measure just 5.3 inches – that's smaller than the 5.4-inch screen on the ‌iPhone‌ mini, a line Apple discontinued in 2022 due to poor sales. The report has led ...

Top Rated Comments

Zorn Avatar
14 months ago
Bummed that 15.3 doesn't include the new Mail categorization features
Score: 9 Votes (Like | Disagree)
Realityck Avatar
14 months ago
Note how the 15.2 RC's are using very close dates to even todays 15.3 beta Darwin Kernel

Comparison of MacOS 153 beta to previous MacOS 15.2 Public, RC2 and RC

macOS 15.3 beta (24D5034f)

* Safari Version 18.3 (20620.2.2)
* System Firmware Version: 11881.80.44 (AS based Macs)
* Darwin Kernel Version 24.3.0: Mon Dec 9 19:48:47 PST 2024; root:xnu-11215.80.25.501.2~1/RELEASE_ARM64_T8103 arm64

macOS 15.2 Public (24C101)

* Safari Version 18.2 (20620.1.16.11.8)
* System Firmware Version: 11881.61.3 (AS based Macs)
* Darwin Kernel Version 24.2.0: Fri Dec 6 18:40:14 PST 2024; root:xnu-11215.61.5~2/RELEASE_ARM64_T8103 arm64

macOS 15.2 RC2 (24C100)

* Safari Version 18.2 (20620.1.16.11.8)
* System Firmware Version: 11881.61.3 (AS based Macs)
* Darwin Kernel Version 24.2.0: Thu Dec 5 18:32:37 PST 2024; root:xnu-11215.61.4~2/RELEASE_ARM64_T8103 arm64

macOS 15.2 RC (24C98)

* Safari Version 18.2 (20620.1.16.11.8)
* System Firmware Version: 11881.61.3 (AS based Macs)
* Darwin Kernel Version 24.2.0: Fri Nov 15 19:28:45 PST 2024; root:xnu-11215.61.3~1/RELEASE_ARM64_T8103 arm64

Apple Music/TV is still 1.5.2.56 no change going to 15.3 beta
Score: 6 Votes (Like | Disagree)
Realityck Avatar
14 months ago
Released to devs
iOS 18.3 beta (22D5034e) - December 16, 2024
iPadOS 18.3 beta (22D5034e) - December 16, 2024
macOS 15.3 beta (24D5034f) - December 16, 2024
tvOS 18.3 beta (22K5534e) - December 16, 2024
visionOS 2.3 beta (22N5875e) - December 16, 2024
watchOS 11.3 beta (22S5534d) - December 16, 2024
Score: 6 Votes (Like | Disagree)
smartmiller Avatar
14 months ago
Genmojis are here on Mac!

Attachment Image
Score: 5 Votes (Like | Disagree)
tywebb13 Avatar
14 months ago

macOS 15.3 beta (24D5034)
sequoia 15.3 beta 1 build number 24D5034f

there is an f there too

i am downloading the ipsw

it has the f



EDIT: looks like Realityck corrected his post now. Good!

Attachment Image
Score: 3 Votes (Like | Disagree)
nortonandreev Avatar
14 months ago
The only thing I was expecting here was the Mail updates, but seems like no...
Score: 2 Votes (Like | Disagree)