Will macOS Sonoma Be Released in September This Year?
While major new macOS versions were released in October or November for the past four years, there is a chance that macOS Sonoma could be released in September this year, based on how beta testing of the update is progressing.

As noted by @iSWUpdates on X, the seventh beta of macOS Sonoma seeded to developers last week has a build number ending in "a," while the seventh beta of macOS Ventura had a build number ending in "f" last year. A build number ending with an earlier letter in the alphabet typically indicates that beta testing is closer to completion.
macOS Mojave was released in September back in 2018. The seventh beta of that update also had a build number ending in "a."
macOS release dates since 2016:
- macOS Sierra: September 20, 2016
- macOS High Sierra: September 25, 2017
- macOS Mojave: September 24, 2018
- macOS Catalina: October 7, 2019
- macOS Big Sur: November 12, 2020
- macOS Monterey: October 25, 2021
- macOS Ventura: October 24, 2022
Other updates expected to be released in September include iOS 17, iPadOS 17, watchOS 10, tvOS 17, and HomePod software version 17.
There is no guarantee that Apple's past plans hint at the company's future plans, of course, so keep in mind that this is merely speculation. macOS Ventura had eleven beta versions and a Release Candidate before it was publicly released, while macOS Sonoma is only up to seven beta versions so far, so an October release cannot be ruled out. It is simply looking more likely that a September release could be in the cards in this year.
Popular Stories
While the iPhone 17 Pro and iPhone 17 Pro Max are not expected to launch until September, there are already plenty of rumors about the devices.
Below, we recap key changes rumored for the iPhone 17 Pro models as of March 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 ...
With the second release candidate of iOS 18.4 that Apple seeded out today, the company finally provided us with release notes that give a full rundown on what to expect.
There's an Apple Vision Pro app, new Apple Intelligence features for notifications and additional language support, plus an Apple News Food feature for Apple News+ subscribers, and several updates that should improve the...
Apple is reportedly working on a new Magic Mouse. Below, we recap what to expect.
The two key rumors for the Magic Mouse 3 so far include a relocated charging port, along with a more ergonomic design.
It was briefly rumored that the Magic Mouse 3 would also feature voice control, but that was misinterpreted information.
Relocated Charging Port
While the Magic Mouse switched from...
Apple's big developer event is a little over two months away, and rumors about what we can expect to see in Apple's next major operating system updates are becoming increasingly frequent.
A public release of iOS 18.4 is also imminent with a number of updates and improvements, although we won't be getting the major Apple Intelligence Siri upgrades that had reportedly been planned for this...
We've been hearing rumors about a foldable iPhone for almost a decade now, but it looks like we might finally see the device come to fruition in 2026. We're going to be waiting many more months for the foldable iPhone, but so far we're hearing good things.
Apple wants to make it creaseless. It's taken Apple multiple years to design a foldable iPhone that it's satisfied with because Apple ...
Apple today released iOS 18.4 and iPadOS 18.4, the fourth major updates to the iOS 18 and iPadOS 18 operating system updates that came out last year. iOS 18.4 and iPadOS 18.4 come two months after Apple released iOS 18.3 and iPadOS 18.3.
Subscribe to the MacRumors YouTube channel for more videos.
The new software can be downloaded on eligible iPhones and iPads over-the-air by going to...
Multiple sources have claimed that iOS 19 will introduce a new design with more translucent buttons, menus, notification banners, and more, and there is now another clue that points towards this glass-like appearance.
Bloomberg's Mark Gurman today said the new design project is codenamed "Solarium" internally. A solarium is a room with glass walls that allow in plenty of sunlight, so this...
Apple's next-generation iPad Pro models with the M5 chip will "launch this year," according to Bloomberg's Mark Gurman.
In his Power On newsletter today, Gurman said the new iPad Pro models have progressed to an "advanced testing" stage, and he expects mass production of the devices to begin in the second half of this year. If that timeframe is met, the new iPad Pro models could launch...