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 Roundup: macOS Sequoia
Related Forum: macOS Sequoia

Popular Stories

iPhone 17 Pro Dark Blue and Orange

When Is iPhone 17 Coming Out?

Thursday July 24, 2025 9:11 am PDT by
Apple's iPhone 17 series is expected to debut in September 2025. This release follows Apple's recent trend of introducing new iPhone models annually in the fall. To unveil the iPhone 17, iPhone 17 Air, iPhone 17 Pro, and iPhone 17 Pro Max, Apple is expected to hold its annual iPhone announcement event during the week of September 8, 2025, with September 9 or 10 emerging as the most likely...
iPhone 17 Pro on Desk Centered 1

iPhone 17 Pro Launching in Two Months With These 16 New Features

Saturday July 26, 2025 5:50 am PDT by
Apple's iPhone 17 Pro and iPhone 17 Pro Max should launch in late September, and there are plenty of rumors about the devices. Below, we recap key changes rumored for the iPhone 17 Pro models, as of July 2025:Aluminum frame: iPhone 17 Pro models are rumored to have an aluminum frame, whereas the iPhone 15 Pro and iPhone 16 Pro models have a titanium frame, and the iPhone X through iPhone 14...
iPhone 17 Pro on Desk Centered 1

Tipster: iPhone 17 Pro to Feature 8x Zoom, Pro Camera App, and More

Sunday July 27, 2025 7:35 am PDT by
Apple's upcoming iPhone 17 Pro models will have several new camera-related features, according to an anonymous tipster who contacted MacRumors today. The tipster claimed to be familiar with an iPhone 17 Pro commercial that is allegedly being produced by a film company that has publicly listed Apple as one of its clients. MacRumors has not independently confirmed any of the information shared ...
Apple Watch Ultra 2 Complications

Apple Watch Ultra 3: What to Expect

Thursday July 24, 2025 7:08 am PDT by
The long wait for an Apple Watch Ultra 3 is nearly over, and a handful of new features and changes have been rumored for the device. Below, we recap what to expect from the Apple Watch Ultra 3:Satellite connectivity for sending and receiving text messages when Wi-Fi and cellular coverage is unavailable 5G support, up from LTE on the Apple Watch Ultra 2 Likely a wide-angle OLED display that ...
Apple Partridge Creek

Apple Store in Michigan Permanently Closing Next Month

Saturday July 26, 2025 1:51 pm PDT by
Earlier this month, MacRumors was first to report that Apple was planning to permanently close its Partridge Creek store, just outside of Detroit, Michigan, and now the company has announced a closure date for the location. Apple Partridge Creek Apple Partridge Creek's final day of business will be Saturday, August 16, with the store set to close for good at 8 p.m. local time that day. All of ...
iOS 18

Apple Shares iOS 18.6 Release Notes

Thursday July 24, 2025 6:33 am PDT by
While the focus is now on iOS 26, there is still an iOS 18.6 update incoming. As noted by Aaron Zollo, Apple on Wednesday re-labeled iOS 18.6 Beta 4 as simply iOS 18.6, meaning that it is the Release Candidate version. This change effectively confirms that the update will be released to the public next week. Alongside the new label, Apple shared release notes for iOS 18.6, which is a...
iPhone 17 Colors

All 15 New iPhone 17 and iPhone 17 Pro Colors Leaked

Friday July 25, 2025 6:20 am PDT by
We may finally have a definitive list of all color options for the iPhone 17 series, ahead of the devices launching in September. MacRumors concept In a Macworld report this month, Filipe Espósito said he obtained an "internal document" that allegedly reveals all of the color options for the upcoming iPhone 17, iPhone 17 Air, iPhone 17 Pro, and iPhone 17 Pro Max models. The report...
iPhone 17 Pro on Desk Centered 1

iPhone 17 Pro Launching in Two Months With These 16 New Features

Tuesday July 22, 2025 5:00 pm PDT by
Apple's iPhone 17 Pro and iPhone 17 Pro Max are less than two months away, and there are plenty of rumors about the devices. Below, we recap key changes rumored for the iPhone 17 Pro models, as of July 2025:Aluminum frame: iPhone 17 Pro models are rumored to have an aluminum frame, whereas the iPhone 15 Pro and iPhone 16 Pro models have a titanium frame, and the iPhone X through iPhone 14...

Top Rated Comments

tywebb13 Avatar
14 weeks 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
14 weeks 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)
Apple MessagePad Avatar
14 weeks 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)
Avenged110 Avatar
14 weeks 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)
con2apple Avatar
14 weeks 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)
strangeengine Avatar
14 weeks 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)