Apple Seeds Second macOS Sequoia 15.1 Release Candidate - MacRumors
Skip to Content

Apple Seeds Second macOS Sequoia 15.1 Release Candidate

Apple today provided developers and public beta testers with the second release candidate version of an upcoming macOS Sequoia 15.1 update, with the new software coming one week after Apple released the seventh beta. Apple introduced the first RC on Monday, and there's likely a new version to address an underlying bug.

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. Public beta testers can sign up on Apple's website.

macOS Sequoia 15.1 introduces the first Apple Intelligence features, adding support for Writing Tools, new Siri features, Smart Replies in Mail and Messages, Priority messages in the Mail app, Memory Movie and Clean Up in Photos, and more.

The update does not include Image Playground, Genmoji, or more advanced ‌Siri‌ functionality.

Using Apple Intelligence features requires a Mac that has an Apple silicon chip.

Related Forum: macOS Sequoia

Popular Stories

iphone duo

Apple Announces Foldable 'iPhone Duo'

Wednesday September 9, 2026 10:56 am PDT by
Apple today announced the "iPhone Duo," a new kind of iPhone featuring two screens and a foldable inner display. The two halves of the iPhone Duo connect into a single continuous frame with the same aspect ratio across both displays, and Apple said the transition between open and closed is designed to feel fluid. When fully open, Apple says it is the thinnest iPhone ever made, with an...
Surprise and Shine Live Coverage Article

Apple Event Live Blog: iPhone Duo, iPhone 18 Pro, and More Expected

Wednesday September 9, 2026 9:10 am PDT by
Apple's "Surprise and Shine" event kicks off today at 10:00 a.m. Pacific Time, where we're expecting to see the foldable iPhone Duo, the iPhone 18 Pro and Pro Max, Apple Watch Series 12 and Ultra 4 models, new AirPods 5 earphones, and perhaps some other announcements. Apple is providing a live video stream on its website, on YouTube, and in the company's TV app across various platforms. We...
apple surprise and shine event

Apple Event Today: iPhone 18 Pro and iPhone Duo Cheat Sheet

Tuesday September 8, 2026 10:24 am PDT by
Apple's biggest event of the year is almost here, and all eyes are on Cupertino. With the first foldable iPhone expected to headline Apple's "Surprise and Shine" event on Wednesday, September 9, at 10:00 a.m. Pacific Time, the rumor mill has been running full throttle, fuelled by the biggest single design change in the life of the iPhone. To get you up to speed, here's a quick reference...

Top Rated Comments

CalMin Avatar
25 months ago
Might just be something for the new hardware announcements next week.

Unless they communicate something critical, I'll wait until the official drop. The current public beta RC build is running fine on two of my Macs.
Score: 5 Votes (Like | Disagree)
TheGenerous Avatar
25 months ago
👍 eating Hot Chili every new system update since Snow Leopard
Score: 4 Votes (Like | Disagree)
25 months ago

Has anyone else held off updating to Sequoia? I don't want any trouble.
For about a week or two I've been running Sequoia 15.0.1 on a 2020 M1 MacBook Air, a 2023 M2 Max MacBook Pro, and a 2022 M1 Ultra Mac Studio.

So far I haven't run into any issues.
Score: 3 Votes (Like | Disagree)
25 months ago
I hope it fixes the iPhone notifications because the first RC broke the feature
Score: 3 Votes (Like | Disagree)
Sir_Macs_A_Lot Avatar
25 months ago
Has anyone else held off updating to Sequoia? I don't want any trouble.
Score: 2 Votes (Like | Disagree)
sgtaylor5 Avatar
25 months ago

I have 15 GB as a download, too. 15 GB????
It will be interesting to see what happens to the downloaded update size when Intel is no longer included.
Score: 2 Votes (Like | Disagree)