Apple Seeds Revised Third Beta of macOS Sequoia to Developers

Apple today seeded a revised third beta of macOS 15 Sequoia to developers for testing purposes, with the software coming a week after the initial release of the third beta.

macOS Sequoia Feature
Registered developers can opt-in to the macOS Sequoia beta through the Software Update section of the System Settings app. An Apple ID associated with an Apple Developer account is required to get the beta.

macOS Sequoia includes iPhone Mirroring, which allows you to control your locked ‌iPhone‌ from your Mac. You can open and use ‌iPhone‌ apps, interact with notifications, and drag and drop files between your ‌iPhone‌ and Mac and vice versa.

There are new options for window tiling, and dragging a window to the edge of the display will suggest a tiled location to make it easier to use multiple apps at once. Apple is adding a Passwords app for managing passwords, Safari can summarize websites and surface key information, and Notes has support for live audio transcription and math equations.

All of the Apple Intelligence features coming to iOS 18 will also be available in macOS Sequoia, but Apple does not plan to add these until later in the beta testing process. ‌Apple Intelligence‌ includes Writing Tools for editing, proofreading, and summarizing text in apps, and an Image Playground allows for AI images to be created from prompts.

Custom emoji or "Genmoji" can be created for any situation and used just like emoji, and Siri is getting much smarter. ‌Siri‌ will be able to do more in apps and will better understand requests, especially those made in regard to on-screen content.

The updated third beta comes as we await the launch of a public beta for macOS Sequoia. Apple said that a version of macOS Sequoia would be available for public beta testers at some point in July.

Related Forum: macOS Sequoia

Popular Stories

iOS 26

iOS 26.4 and iOS 27 Features Revealed in New Leak

Friday December 12, 2025 10:56 am PST by
Macworld's Filipe Espósito today revealed a handful of features that Apple is allegedly planning for iOS 26.4, iOS 27, and even iOS 28. The report said the features are referenced within the code for a leaked internal build of iOS 26 that is not meant to be seen by the public. However, it appears that Espósito and/or his sources managed to gain access to it, providing us with a sneak peek...
apple beta 26 lineup

Apple Leak Confirms Work on Foldable iPhone, AirTag 2, and Dozens More Devices

Monday December 15, 2025 2:05 pm PST by
Last week, details about unreleased Apple devices and future iOS features were shared by Macworld. This week, we learned where the information came from, plus we have more findings from the leak. As it turns out, an Apple prototype device running an early build of iOS 26 was sold, and the person who bought it shared the software. The OS has a version number of 23A5234w, and the first...
Apple Logo Top Half

Early iOS 26 Software Leak Uncovers Dozens of Upcoming Apple Features

Monday December 15, 2025 3:05 pm PST by
Software from an iPhone prototype running an early build of iOS 26 leaked last week, giving us a glimpse at future Apple devices and iOS features. We recapped device codenames in our prior article, and now we have a list of some of the most notable feature flags that were found in the software code. In some cases, it's obvious what the feature flags are referring to, while some are more...
Apple Foldable Thumb

Leak Reveals Foldable iPhone Details

Monday December 15, 2025 9:09 am PST by
The first foldable iPhone will feature a series of design and hardware firsts for Apple, according to details shared by the Weibo leaker known as Digital Chat Station. According to a new post, via machine translation, Apple is developing what the leaker describes as a "wide foldable" device, a term used to refer to a horizontally oriented, book-style foldable with a large internal display....
iOS 26

iOS 26.3 Beta 1 Features: What's New So Far

Monday December 15, 2025 4:23 pm PST by
Apple is testing iOS 26.3, the next version of iOS 26 that will launch around January. Since iOS 26.3's testing is happening over the holidays, it is a smaller update with fewer features than we've seen in prior betas. We've rounded up what's new so far, and we'll add to our list with subsequent betas if we come across any other features. Transfer to Android Apple is making it simpler...
iOS 26

Apple Releases iOS 26.2 With Alarms for Reminders, Lock Screen Changes, Enhanced Safety Alerts and More

Friday December 12, 2025 10:10 am PST by
Apple today released iOS 26.2, the second major update to the iOS 26 operating system that came out in September, iOS 26.2 comes a little over a month after iOS 26.1 launched. ‌iOS 26‌.2 is compatible with the ‌iPhone‌ 11 series and later, as well as the second-generation ‌iPhone‌ SE. The new software can be downloaded on eligible iPhones over-the-air by going to Settings >...
iOS 26

iOS 26.2 Coming Soon With These 8 New Features on Your iPhone

Thursday December 11, 2025 8:49 am PST by
Apple seeded the second iOS 26.2 Release Candidate to developers earlier this week, meaning the update will be released to the general public very soon. Apple confirmed iOS 26.2 would be released in December, but it did not provide a specific date. We expect the update to be released by early next week. iOS 26.2 includes a handful of new features and changes on the iPhone, such as a new...
airpods max 2024 colors

AirPods Max 2 Likely to Offer These 10 New Features

Monday December 15, 2025 7:41 am PST by
Apple released the AirPods Max on December 15, 2020, meaning the over-ear headphones launched five years ago today. While the AirPods Max were updated with a USB-C port and new color options last year, followed by support for lossless audio and ultra-low latency audio this year, the headphones lack some of the features that have been introduced for newer generations of the regular AirPods and the ...

Top Rated Comments

Realityck Avatar
19 months ago
Comparison of revised MacOS 15 beta 3 to previous MacOPS 15 beta 3

revised macOS 15.0 beta 3 (24A5289h)

* Safari Version 18.0 (20619.1.20.11.1)
* System Firmware Version: 11881.0.224.0.2 (M1 based Macs)
* Darwin Kernel Version 24.0.0: Mon Jul 1 21:58:28 PDT 2024; root:xnu-11215.0.132.501.1~1/RELEASE_ARM64_T8103 arm64

macOS 15.0 beta 3 (24A5289g)

* Safari Version 18.0 (20619.1.20.11.1)
* System Firmware Version: 11881.0.224.0.2 (M1 based Macs)
* Darwin Kernel Version 24.0.0: Mon Jul 1 21:58:28 PDT 2024; root:xnu-11215.0.132.501.1~1/RELEASE_ARM64_T8103 arm64

Apple Music/TV is still 1.5.0.150

No changes as you can see looking at just these parameters
Score: 4 Votes (Like | Disagree)
Realityck Avatar
19 months ago
There are three releases today

* iOS 18 beta 3 (22A5307i) - July 15, 2024
* iPadOS 18 beta 3 (22A5307i) - July 15, 2024
* macOS 15 beta 3 (24A5289h) - July 15, 2024

previously

* iOS 18 beta 3 (22A5307f) - July 8, 2024
* iPadOS 18 beta 3 (22A5307f) - July 8, 2024
* macOS 15.0 beta 3 (24A5289g) - July 10, 2024
Score: 4 Votes (Like | Disagree)
PeeWee1963 Avatar
19 months ago

Does anyone know how they detect the location ?
Does it work with a VPN ?
You need a non-EU Apple ID.
Score: 3 Votes (Like | Disagree)
businessnumbersmoneypeopl Avatar
19 months ago
Could Apple please do something to Stage Manager with this update. I like the idea, but the way it is executed is super chaotic, especially with several monitors.
Score: 3 Votes (Like | Disagree)
AppleTO Avatar
19 months ago
A revised third beta? So... a fourth beta? lol
Score: 2 Votes (Like | Disagree)
iMacDragon Avatar
19 months ago

What did they revise?
I don't think they specifically say, but it's presumably whatever changes they deemed necessary before public beta from b3.
Score: 2 Votes (Like | Disagree)