macOS Sequoia 15.3 Launching Soon: Here Are the Release Notes

Apple today seeded out the release candidate version of an upcoming macOS Sequoia 15.3 update, and provided there are no underlying bugs discovered, the RC is the version of macOS that will be released to the public in the near future.

macos sequoia iphone mirroring
With the RC, Apple provided the release notes for macOS Sequoia 15.3, so if you want to know exactly what's coming, here are the details.

This update introduces Genmoji, powered by Apple Intelligence, and also includes other enhancements, bug fixes, and security updates for your Mac.
- Genmoji creation in Messages and other apps
- Calculator repeats the last mathematical operation when you click the equals sign again
- Easily manage settings for notification summaries from the Lock Screen (Mac with Apple silicon)
- Updated style for summarized notifications better distinguishes them from other notifications by using italicized text as well as the glyph (Mac with Apple silicon)
- Notification summaries for News & Entertainment apps are temporarily unavailable, and users who opt-in will see them again when the feature becomes available (Mac with Apple silicon)
Some features may not be available for all regions, or on all Apple devices.
For information on the security content of Apple software updates, please visit: https://support.apple.com/100100

With the exception of Genmoji, a feature that was already available in iOS and iPadOS, these release notes also pertain to iOS 18.3 and iPadOS 18.3.

We're expecting macOS Sequoia 15.3, iOS 18.3, and iPadOS 18.3 to see a public launch next week.

Related Forum: macOS Sequoia

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...
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...
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...
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...
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) -...
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 ...
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...
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), ...

Top Rated Comments

nono_thank you Avatar
12 months ago
Am I one of the few with zero interest in Genmoji?
Score: 29 Votes (Like | Disagree)
poematik13 Avatar
12 months ago
I will literally pay 499/year, maybe even more, for a "macOS Pro" that removes all the shareholder-pushed consumer BS (No AI, no genmoji, garageband, bloatware Tips, News, and TV apps etc.) and is just rock solid snow leopard 10.6.8 syle constant performance, compatibility, stability updates and nothing else. like basically windows 10 LTSC
Score: 14 Votes (Like | Disagree)
coolfactor Avatar
12 months ago
Part of the allure of macOS is that it was built as a UNIX-compliant operating system, which keeps it broadly compatible with a wealth of third-party software.

I fear that Apple has lost sight of that, and is making macOS more proprietary by the year, to a point where it may no longer be UNIX-compliant.

Lets hope that never happens.
Score: 12 Votes (Like | Disagree)
poematik13 Avatar
12 months ago

What I'd really like is support for RAW files with Canon's R5 Mark II camera. I would hate to have to wait until macOS 16 for that.
Nah, instead you're gonna get more AI generated emojis and RAM hogging widgets for shopping apps and you'll like it.
Score: 8 Votes (Like | Disagree)
darthaddie Avatar
12 months ago
Network issues, buggy safari, buggy finder, first time in years all 3 computers freeze randomly, spotlight is an unusable garbage. But wait we have Genmoji so we can be more productive. :confused:
Score: 7 Votes (Like | Disagree)
Fluffyk Avatar
12 months ago
Long story short. Nothing interesting or important. The next iOS and macOS release will look and work the same but there will be more Apple “Intelligence” features that won’t work and the main abillity of it will be to make you sound stupid in your automated e-mails.
Score: 7 Votes (Like | Disagree)