Apple Again References 'MacOS', This Time on Developer Website

Because iOS, watchOS, and tvOS all share a common naming scheme, there's been some speculation that OS X, the operating system for Macs, could see a name change to "MacOS" at this year's Worldwide Developers Conference.

Earlier this year, Apple referenced "MacOS" in an environmental website update, and today the company has made the same gaffe on a developer FAQ page outlining new App Store revenue sharing policies, again raising the question of whether a name change is on the horizon.

In a section on when the new revenue split goes into effect, Apple references the types of apps that are eligible, listing iOS, macOS, tvOS, and watchOS.

applemacosmention
Unlike the first time "MacOS" was spotted on the Apple website, the iTunes Connect mention uses "macOS" with a lowercase "m" that better fits with the lower case letters used in iOS, watchOS, and tvOS.

It continues to be unknown if the macOS mention is a mistake made because of the naming of Apple's other operating systems or an error made because of an imminent name change planned for OS X.

If Apple is planning to switch from "OS X" to "macOS" or "MacOS," it is not clear if the company will continue on with naming each iteration after California landmarks, a tradition that started with OS X Mavericks in 2013. tvOS, watchOS, and iOS operating system upgrades follow a number-based naming scheme.

We don't have long to wait to find out if there's a naming change in store for Apple's Mac-based operating system. The Worldwide Developers Conference is set to kick off next Monday with a keynote event that will take place at 10:00 a.m. Pacific Time.

Update: Apple has updated the page to change "macOS" to "OS X."

Popular Stories

iOS 26

15 New Things Your iPhone Can Do in iOS 26.2

Friday December 5, 2025 9:40 am PST by
Apple is about to release iOS 26.2, the second major point update for iPhones since iOS 26 was rolled out in September, and there are at least 15 notable changes and improvements worth checking out. We've rounded them up below. Apple is expected to roll out iOS 26.2 to compatible devices sometime between December 8 and December 16. When the update drops, you can check Apple's servers for the ...
Intel Inside iPhone Feature

Apple's Return to Intel Rumored to Extend to iPhone

Friday December 5, 2025 10:08 am PST by
Intel is expected to begin supplying some Mac and iPad chips in a few years, and the latest rumor claims the partnership might extend to the iPhone. In a research note with investment firm GF Securities this week, obtained by MacRumors, analyst Jeff Pu said he and his colleagues "now expect" Intel to reach a supply deal with Apple for at least some non-pro iPhone chips starting in 2028....
Photos App Icon Liquid Glass

John Gruber Shares Scathing Commentary About Apple's Departing Software Design Chief

Thursday December 4, 2025 9:30 am PST by
In a statement shared with Bloomberg on Wednesday, Apple confirmed that its software design chief Alan Dye will be leaving. Apple said Dye will be succeeded by Stephen Lemay, who has been a software designer at the company since 1999. Meta CEO Mark Zuckerberg announced that Dye will lead a new creative studio within the company's AR/VR division Reality Labs. On his blog Daring Fireball,...
ive and altman

Jony Ive's OpenAI Device Barred From Using 'io' Name

Friday December 5, 2025 6:22 am PST by
A U.S. appeals court has upheld a temporary restraining order that prevents OpenAI and Jony Ive's new hardware venture from using the name "io" for products similar to those planned by AI audio startup iyO, Bloomberg Law reports. iyO sued OpenAI earlier this year after the latter announced its partnership with Ive's new firm, arguing that OpenAI's planned "io" branding was too close to its...
iOS 26

Apple Seeds iOS 26.2 and iPadOS 26.2 Release Candidates to Developers and Public Beta Testers

Wednesday December 3, 2025 10:33 am PST by
Apple today seeded the release candidate versions of upcoming iOS 26.2 and iPadOS 26.2 updates to developers and public beta testers, with the software coming two weeks after Apple seeded the third betas. The release candidates represent the final versions of iOS 26.2 and iPadOS 26.2 that will be provided to the public if no further bugs are found during this final week of testing....
iphone air camera

iPhone Air's Resale Value Has Dropped Dramatically, Data Shows

Thursday December 4, 2025 5:27 am PST by
The iPhone Air has recorded the steepest early resale value drop of any iPhone model in years, with new data showing that several configurations have lost almost 50% of their value within ten weeks of launch. According to a ten-week analysis published by SellCell, Apple's latest lineup is showing a pronounced split in resale performance between the iPhone 17 models and the iPhone Air....
iPhone 17 Pro Cosmic Orange

iPhone 17 Pro Lost a Camera Feature Pro Models Have Had Since 2020

Thursday December 4, 2025 5:18 am PST by
iPhone 17 Pro models, it turns out, can't take photos in Night mode when Portrait mode is selected in the Camera app – a capability that's been available on Apple's Pro devices since the iPhone 12 Pro in 2020. If you're an iPhone 17 Pro or iPhone 17 Pro Max owner, try it for yourself: Open the Camera app with Photo selected in the carousel, then cover the rear lenses with your hand to...
ios 18 to ios 26 upgrade

Apple Pushes iPhone Users Still on iOS 18 to Upgrade to iOS 26

Tuesday December 2, 2025 11:09 am PST by
Apple is encouraging iPhone users who are still running iOS 18 to upgrade to iOS 26 by making the iOS 26 software upgrade option more prominent. Since iOS 26 launched in September, it has been displayed as an optional upgrade at the bottom of the Software Update interface in the Settings app. iOS 18 has been the default operating system option, and users running iOS 18 have seen iOS 18...
maxresdefault

iPhone Fold: Launch, Pricing, and What to Expect From Apple's Foldable

Monday December 1, 2025 3:00 am PST by
Apple is expected to launch a new foldable iPhone next year, based on multiple rumors and credible sources. The long-awaited device has been rumored for years now, but signs increasingly suggest that 2026 could indeed be the year that Apple releases its first foldable device. Subscribe to the MacRumors YouTube channel for more videos. Below, we've collated an updated set of key details that ...
iPhone 17 Pro Cosmic Orange

10 Reasons to Wait for Next Year's iPhone 18 Pro

Monday December 1, 2025 2:40 am PST by
Apple's iPhone development roadmap runs several years into the future and the company is continually working with suppliers on several successive iPhone models at the same time, which is why we often get rumored features months ahead of launch. The iPhone 18 series is no different, and we already have a good idea of what to expect for the iPhone 18 Pro and iPhone 18 Pro Max. One thing worth...

Top Rated Comments

radiology Avatar
124 months ago
That's going to be huge. It will change completely the users experience. Can't wait!
Score: 48 Votes (Like | Disagree)
macduke Avatar
124 months ago
The little "m" works for me because it's consistent with the other naming conventions. Sure, it looks weird today, but we'll eventually get used to it. It's like when they changed the name from Mac OS X to just OS X. At least the word "mac" is back in the name now.
Score: 26 Votes (Like | Disagree)
Karmanerds Avatar
124 months ago
I think it may be time to go to 11!
Score: 20 Votes (Like | Disagree)
oneMadRssn Avatar
124 months ago
Actually, I just hope it isn't OS X 10.12. After OS X 10.9, it should've gone to Mac OS 11.
No, staaahp. It's not a decimal number. Each number on either side of the period is a discrete number.

I hope they keep the X - fond memories of those giant Xs on the old CDs.
Score: 17 Votes (Like | Disagree)
Benjamin Frost Avatar
124 months ago
I have a bad feeling about WWDC this year.

Almost every single news or rumour to come from Apple in the past year has been bad. The latest include app subscriptions and ads in the App Store. No thanks; I hate subscriptions with a vengeance and the same with ads.

The end of iTunes downloads? Two rumours suggests there's a fire. I'd use a mix of Amazon and CDs if iTunes shut down.

The whole approach Apple is taking under Cook is encouraging me to look at alternatives to Apple and technology in general. I have fallen out of love with the tech world. It is obsessed with ripping people off with IAPs and subscriptions, and there is nothing exciting anymore. Everything is static. Music has died; culture has died; hardware and software have atrophied. The world is running madly and going nowhere.
Score: 16 Votes (Like | Disagree)
KALLT Avatar
124 months ago
‘macOS’... I cannot believe it. Looks really cheesy.
Score: 15 Votes (Like | Disagree)