Apple Seeds Second Beta of macOS Sequoia 15.5

Apple today seeded the second beta of an upcoming macOS Sequoia 15.5 update to developers for testing purposes, with the software coming two weeks after Apple released the first 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

Aston Martin CarPlay Ultra Screen

Apple's CarPlay Ultra to Expand to These Vehicle Brands Later This Year

Sunday February 1, 2026 10:08 am PST by
Last year, Apple launched CarPlay Ultra, the long-awaited next-generation version of its CarPlay software system for vehicles. Nearly nine months 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. In his Powe...
Apple Logo Black

Apple Just Made Its Second-Biggest Acquisition Ever After Beats

Thursday January 29, 2026 10:07 am PST by
Apple today confirmed to Reuters that it has acquired Q.ai, an Israeli startup that is working on artificial intelligence technology for audio. Apple paid close to $2 billion for Q.ai, according to sources cited by the Financial Times. That would make this Apple's second-biggest acquisition ever, after it paid $3 billion for the popular headphone and audio brand Beats in 2014. Q.ai has...
Apple Logo Black

Apple's Next Launch is 'Imminent'

Sunday February 1, 2026 12:31 pm PST by
The calendar has turned to February, and a new report indicates that Apple's next product launch is "imminent," in the form of new MacBook Pro models. "All signs point to an imminent launch of next-generation MacBook Pros that retain the current form factor but deliver faster chips," Bloomberg's Mark Gurman said on Sunday. "I'm told the new models — code-named J714 and J716 — are slated...
14 inch MacBook Pro Keyboard

Apple Changes How You Order a Mac

Saturday January 31, 2026 10:51 am PST by
Apple recently updated its online store with a new ordering process for Macs, including the MacBook Air, MacBook Pro, iMac, Mac mini, Mac Studio, and Mac Pro. There used to be a handful of standard configurations available for each Mac, but now you must configure a Mac entirely from scratch on a feature-by-feature basis. In other words, ordering a new Mac now works much like ordering an...
Apple MacBook Pro M4 hero

New MacBook Pros Reportedly Launching Alongside macOS 26.3

Sunday February 1, 2026 5:42 am PST by
Apple is planning to launch new MacBook Pro models with M5 Pro and M5 Max chips alongside macOS 26.3, according to Bloomberg's Mark Gurman. "Apple's faster MacBook Pros are planned for the macOS 26.3 release cycle," wrote Gurman, in his Power On newsletter today. "I'm told the new models — code-named J714 and J716 — are slated for the macOS 26.3 software cycle, which runs from...

Top Rated Comments

tywebb13 Avatar
11 months ago
build number is 24F5053f

other builds released today:

iOS 18.5 beta 2 (22F5053f)
iPadOS 18.5 beta 2 (22F5053f)
tvOS 18.5 beta 2 (22L5553d)
audioOS 18.5 beta 2 (22L5553d)
visionOS 2.5 beta 2 (22O5453e)
watchOS 11.5 beta 2 (22T5553d)
macOS Ventura 13.7.6 RC 1 (22H612)
macOS Sonoma 14.7.6 RC 1 (23H612)
Score: 5 Votes (Like | Disagree)
uczcret Avatar
11 months ago

I have updated three Mac (M1, M1 Pro and M4 Pro), and the update seems to delete all of your browser data in Safari. Extensions must be given new permissions, and websites again asks you to accept cookies or not.
Not the case on my M3 MBA.
Score: 4 Votes (Like | Disagree)
tywebb13 Avatar
11 months ago

Is it safe to say that these are no longer going to be supported?
don't think so

one would expect support for ventura to continue till release of macOS 16

likewise support for sonoma to continue till release of macOS 17

at least that's how it's been for many years, supporting systems till third version up is released

so this time we have

macOS Ventura 13.7.6 RC 1 (22H612)
macOS Sonoma 14.7.6 RC 1 (23H612)

they are usually released when the sequoia ones come out, but as we saw last time this doesn't always happen so even though the sequoia one is the beta 2, these RCs are RC 1's
Score: 4 Votes (Like | Disagree)
melotron Avatar
11 months ago
I have updated three Mac (M1, M1 Pro and M4 Pro), and the update seems to delete all of your browser data in Safari. Extensions must be given new permissions, and websites again asks you to accept cookies or not.
Score: 2 Votes (Like | Disagree)
SeenJeen Avatar
11 months ago
I tried 15.2 for a few days and went back to Sonoma due to all the bugs (external mic wasn’t working properly with Loom/Teams, Mission Control not remembering settings, a few more things…)

How’s 15.4?
Score: 2 Votes (Like | Disagree)
maxoakland Avatar
11 months ago
No new features is music to my ears because it means no new bugs
Score: 1 Votes (Like | Disagree)