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

iPhone Top Left Hole Punch Face ID Feature Purple

iPhone 18 Pro Features Leaked in New Report, Including Under-Screen Face ID

Tuesday December 16, 2025 8:44 am PST by
Next year's iPhone 18 Pro and iPhone 18 Pro Max will be equipped with under-screen Face ID, and the front camera will be moved to the top-left corner of the screen, according to a new report from The Information's Wayne Ma and Qianer Liu. As a result of these changes, the report said the iPhone 18 Pro models will not have a pill-shaped Dynamic Island cutout at the top of the screen....
apple music chatgpt

ChatGPT's Apple Music Integration Is Now Live

Wednesday December 17, 2025 3:50 pm PST by
There's now a dedicated Apple Music app for ChatGPT, which allows ChatGPT to make music recommendations and build playlists. Apple Music can be added to ChatGPT through the Settings section in the Mac app, website, or iOS app. Apple Music is listed under the apps option, and connecting to it requires signing in with your Apple Account for authorization purposes. ChatGPT can be used to...
apple beta 26 lineup

Apple's 2026 and 2027 Product Roadmap: Foldable iPhone, iPhone 18 Pro, M5 Macs, and More

Tuesday December 16, 2025 4:42 pm PST by
There has been a whirlwind of rumors over the last few days, sourced from leaked internal software designed for the iPhone and the Mac, and news sites like The Information. Below, we have a quick recap of everything we've heard this week, which serves as a guide to Apple's product plans in 2026 and beyond. We've organized the info by likely release date, though there are some products that...
apple iphone air battery pack

Apple Aims to Boost Popularity of iPhone Air 2 in Two Ways

Tuesday December 16, 2025 11:06 am PST by
We have been covering iPhone 18 Pro, iPhone 17e, and iPhone Fold details from The Information's report about future iPhone models, and next up is the iPhone Air 2. The report says that Apple aims to make the iPhone Air 2 more attractive in two ways. First, Apple is apparently considering adding a second rear camera to the device, which would resolve a key limitation. The current iPhone...
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...
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 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...
a15 chip

Apple Tested a MacBook With the A15 Chip

Wednesday December 17, 2025 7:19 am PST by
An internal Apple kernel debug kit suggests Apple has tested a MacBook with the A15 chip, alongside a separate A18 Pro-based MacBook that appears to be closer to a shippable product. The information comes from internal kernel debug kit files used by Apple engineers. The kit was accidentally released on Apple's website earlier this year, but it was quickly pulled after information started...
maxresdefault

Apple Developing iMac Pro With M5 Max Chip

Tuesday December 16, 2025 7:30 am PST by
Apple is developing a high-end iMac featuring the M5 Max chip, according to information from leaked internal software. Subscribe to the MacRumors YouTube channel for more videos. The finding comes from leaked kernel debug kit files used by Apple engineers. These kernel debug kit files enumerate unreleased Apple hardware by internal identifiers, such as codenames and platform names, and they...

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)