Apple Seeds Fourth Beta of macOS Sequoia 15.5 [Update: Public Beta Available] - MacRumors
Skip to Content

Apple Seeds Fourth Beta of macOS Sequoia 15.5 [Update: Public Beta Available]

Apple today seeded the fourth beta of an upcoming macOS Sequoia 15.5 update to developers for testing purposes, with the software coming a week after Apple released the third macOS Sequoia 15.5 beta.

macOS Sequoia Night 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 15.5 appears to be a minor update so far, and no notable new features were found in the first three betas.

Work on new features for macOS Sequoia is winding down, as Apple will soon transition to macOS 16. The next-generation version of macOS is set to be unveiled at WWDC in June.

Related Forum: macOS Sequoia

Popular Stories

Apple Event Logo

Apple's Next Era Begins September 1

Thursday May 7, 2026 10:36 am PDT by
Apple recently announced that Tim Cook will be stepping down as CEO later this year, after 15 years of leading the company. Effective September 1, Apple's hardware engineering chief John Ternus will become the company's next CEO, while Cook will become executive chairman of Apple's board of directors. In his new role, Apple said Cook will assist with "certain aspects" of the company,...
Instagram Feature 2

PSA: Instagram Encrypted Messaging Ends on Friday, May 8

Tuesday May 5, 2026 8:24 am PDT by
Instagram will remove end-to-end encryption for direct messages between users from May 8, 2026. When the date comes around, Meta will potentially be able to see the contents of all messages between users on the social media platform. Encrypting messages has been an optional feature in Instagram since 2023, but in March of this year the social media platform quietly updated a help page to say ...
Apple Event Logo

Apple Just Released a New Accessory

Monday May 4, 2026 8:13 am PDT by
Apple today released a new Pride Edition Sport Loop for the Apple Watch. The band features a rainbow design with 11 colors of woven nylon yarns. The new Pride Edition Sport Loop is available to order now on Apple.com and in the Apple Store app in 40mm, 42mm, and 46mm sizes, and it will be available at Apple Store locations starting later this week. In the U.S., the band costs $49. There...

Top Rated Comments

14 months ago
build number is 24F5068b

other builds released today:

macOS 14.7.6 RC 3 (23H622)
macOS 13.7.6 RC 3 (22H622)
iOS 18.5 beta 4 (22F5068a)
iPadOS 18.5 beta 4 (22F5068a)
tvOS 18.5 beta 4 (22L5566a)
audioOS 18.5 beta 4 (22L5566a)
visionOS 2.5 beta 4 (22O5467a)
watchOS 11.5 beta 4 (22T5567a)
Score: 8 Votes (Like | Disagree)
14 months ago

Apparent new feature : In Time Machine settings, ability to set intervals of : 1 hrs, 1 day, 1 week, manual. no more 3rd party apps to do this unless you really need a different interval.
this isn't new!
Score: 3 Votes (Like | Disagree)
Keblar Avatar
14 months ago

You really expect it to work. Apple stuff just barely works with Apple stuff. Apple is the new Microsoft from 1990s where stuff only works on stuff from the same manufacturer.
It worked flawlessly during 3 years straight.
Score: 3 Votes (Like | Disagree)
14 months ago

Any news if the firmware gets updated with this release?
Im using a Sonnet eGFx Breakaway Box and it used to work perfectly before Sequoia 15.4 in macOS and bootcamp

Now it does NOT work at all.

The Sonnet is connected to a 2018 Macmini.
You really expect it to work. Apple stuff just barely works with Apple stuff. Apple is the new Microsoft from 1990s where stuff only works on stuff from the same manufacturer.
Score: 3 Votes (Like | Disagree)
14 months ago

other builds released today:

macOS 14.7.6 RC 3 (23H622)
macOS 13.7.6 RC 3 (22H622)
What bug are they chasing they can't fix?

Or are they deliberately delaying a security update just to release it with the Sequoia update? If so that's really dumb.
Score: 2 Votes (Like | Disagree)
Steve01234 Avatar
14 months ago
Apparent new feature : In Time Machine settings, ability to set intervals of : 1 hrs, 1 day, 1 week, manual. no more 3rd party apps to do this unless you really need a different interval.
Score: 2 Votes (Like | Disagree)