Apple Seeds Third Beta of macOS Sequoia 15.5 - MacRumors
Skip to Content

Apple Seeds Third Beta of macOS Sequoia 15.5

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

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

macOS 27 on MacBook Pro

macOS 27 Will Mark the End of an Era

Saturday April 18, 2026 6:45 am PDT by
During its Platforms State of the Union segment at WWDC 2025, Apple revealed that macOS 26 Tahoe is the final major macOS version for Intel-based Macs. The upcoming macOS 27 release will be compatible with Apple silicon Macs only, meaning that you will need a Mac with an M-series chip or a MacBook Neo with an A18 Pro chip in order to install the software update. macOS 27 should be available...
Aston Martin CarPlay Ultra Screen

Apple Says CarPlay Ultra is Coming to These Vehicle Brands

Saturday April 18, 2026 5:59 am PDT by
Last year, Apple launched CarPlay Ultra, the long-awaited next-generation version of its CarPlay software system for vehicles. Nearly a year later, CarPlay Ultra is still limited to Aston Martin's latest luxury vehicles, but that should change fairly soon. In May 2025, Apple said many other vehicle brands planned to offer CarPlay Ultra, including Hyundai, Kia, and Genesis. CarPlay Ultra...
Tim Cook Rainbow

Apple CEO Tim Cook Stepping Down, John Ternus Taking Over

Monday April 20, 2026 1:33 pm PDT by
Apple CEO Tim Cook is stepping down as Apple's chief executive officer, and hardware engineering chief John Ternus is set to take over, Apple announced today. Cook will continue on as Apple CEO through the summer, with Ternus set to join Apple's Board of Directors and take over as CEO on September 1, 2026. Cook is going to transition to executive chairman, and he will "assist with certain...

Top Rated Comments

13 months ago
build number is 24F5053j

others:

iOS 18.5 beta 3 (22F5053j)
iPadOS 18.5 beta 3 (22F5053j)
macOS 14.7.6 RC 2 (23H616)
macOS 13.7.6 RC 2 (22H616)
tvOS 18.5 beta 3 (22L5559d)
audioOS 18.5 beta 3 (22L5559d)
visionOS 2.5 beta 3 (22O5459c)
watchOS 11.5 beta 3 (22T5559d)
Score: 3 Votes (Like | Disagree)
strangeengine Avatar
13 months ago

The fact that Mail.app loses its place in the email list every time you switch mailboxes may lead me to violence. Hopefully this is fixed too.
Ok, I can report that this appears to be fixed in the developer beta and actually behaves better than it has in a long time. THANKS, Apple!
Score: 2 Votes (Like | Disagree)
con2apple Avatar
13 months ago
Just imagine: No useless feature, but three bugs less.

It's about time that Apple not only listed new features, but also provided proof of their work. When I download updates from the App Store, it often says “Problem solved with XY”. Apple doesn't do that.
The question is, do they just do nothing or are they still too proud to admit that their software is completely buggy?
Score: 1 Votes (Like | Disagree)
Apple MessagePad Avatar
13 months ago
That's not surprising. Rarely are featured added this close to WWDC. They're saving the new stuff for iOS 19 at this point.
Score: 1 Votes (Like | Disagree)
strangeengine Avatar
13 months ago
The fact that Mail.app loses its place in the email list every time you switch mailboxes may lead me to violence. Hopefully this is fixed too.
Score: 1 Votes (Like | Disagree)
Avenged110 Avatar
13 months ago
I hope it actually fixes some of the crippling bugs, like the unacceptable random black screens on my family's iMac, which require a hard reboot to temporarily remedy. Never saw that in any version prior to 15.4.0. And yet, for all of the work apparently not being spent on features for this final meaningful point release, they'll probably just fix a couple of bugs in features that don't even really matter.
Score: 1 Votes (Like | Disagree)