Apple Seeds Sixth Developer Beta of macOS Sequoia 15.1 [Update: Public Beta Available] - MacRumors
Skip to Content

Apple Seeds Sixth Developer Beta of macOS Sequoia 15.1 [Update: Public Beta Available]

Apple today provided developers with the sixth beta of an upcoming macOS Sequoia 15.1 beta, with the new update coming two weeks after Apple released the fifth 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 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

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...
iOS 27 Feature Dark

Apple Announces iOS 27 Release Date

Wednesday September 9, 2026 10:46 am PDT by
At its event today unveiling the iPhone 18 Pro, AirPods 5, Apple Watch Series 12, and more, Apple announced that iOS 27 will be released later this month. iOS 27 has already been available as a developer beta since June and as a public beta since July, and Apple today said that the update will be released for all users with a compatible iPhone model on Monday, September 14. iOS 27 is...

Top Rated Comments

Realityck Avatar
25 months ago
Comparison of MacOS 15.1 Beta 6 to previous MacOS 15.1 Beta 5

macOS 15.1 Beta 6 (24B5070a)

* Safari Version 18.1 (20619.2.8.11.4)
* System Firmware Version: 11881.41.3 (M1 based Macs)
* Darwin Kernel Version 24.1.0: Mon Sep 30 00:07:39 PDT 2024; root:xnu-11215.40.63~39/RELEASE_ARM64_T8103 arm64

macOS 15.1 Beta 5 (24B5055e)

* Safari Version 18.1 (20619.2.5.11.2)
* System Firmware Version: 11881.40.153 (M1 based Macs)
* Darwin Kernel Version 24.1.0: Tue Sep 17 07:48:19 PDT 2024; root:xnu-11215.40.59~38/RELEASE_ARM64_T8103 arm64

Apple Music/TV is now 1.5.1.24 was 1.5.1.18
Score: 7 Votes (Like | Disagree)
winxmac Avatar
25 months ago
Releases:

iOS 18.1 beta 6 (22B5069a)
iPadOS 18.1 beta 6 (22B5069a)
macOS 15.1 beta 6 (24B5070a)
tvOS 18.1 beta 4 (22J5567a)
visionOS 2.1 beta 4 (22N5567a)
watchOS 11.1 beta 4 (22R5569a)

Source ('https://developer.apple.com/news/releases/')
Score: 3 Votes (Like | Disagree)
nortonandreev Avatar
25 months ago
Now the 2-hour wait for the OTA to appear…
Score: 3 Votes (Like | Disagree)
Nermal Avatar
24 months ago

Do you have any solution to this problem?
I've created a dedicated thread[/thread] for this issue, although no solutions yet.
Score: 2 Votes (Like | Disagree)
DICK_CHENEY Avatar
25 months ago
Maybe this will finally fix all the borked VPN and security software issues.
Score: 2 Votes (Like | Disagree)
25 months ago
I do run into some weird issues with this latest PB:

* Whenever I try to run certain apps (such as MATLAB), the system says that I do not have the permission to open them:

* "The application "Dock" does not have permission to open "null."" when I try running from the Dock, and
* "The application "Finder" does not have permission to open "null."" whenever I try running from the Applications folder in Finder.


Never encountered this before.
Score: 1 Votes (Like | Disagree)