New macOS 'Compatibility Mode' Options Let Developers Decide How Fullscreen Apps Handle the Notch - MacRumors
Skip to Content

New macOS 'Compatibility Mode' Options Let Developers Decide How Fullscreen Apps Handle the Notch

While users and developers come to terms with the fact that the last-minute notch rumor for the new MacBook Pros was true, Apple has released new Human Interface Guidelines explaining how developers can make the best use of the extended screen areas around the camera housing if they think their app would benefit from it.

macbook pro 2021 notch
According to the new documentation, the fullscreen mode in macOS Monterey features a "compatibility mode" that automatically accounts for the camera housing by placing a black bar across the top of the screen to hide the notch and prevent app content from being placed there.

However, macOS also includes a new "NSPrefersDisplaySafeAreaCompatibilityMode" property list key that lets developers specify whether their apps should conform to compatibility mode or if their apps can expand to use the space on either side of the notch.

On Macs that include a camera housing in the screen bezel, the system provides a compatibility mode to prevent apps from unintentionally putting content in the region the housing occupies. When this mode is active, the system changes the active area of the display to avoid the camera housing. The new active area ensures your app's contents are always visible and not obscured by the camera housing.

macos notch new macbook pros
On Macs that have a notch, the Finder automatically adds a checkbox to an app's Get Info panel that can be used to manually enable or disable the new compatibility mode. Alternately, developers can force compatibility mode on or off using new code properties that define the safe area of the screen and allow them to make use of the areas on either side of the notch for active content.

Developers should confirm that their app layouts do not overlap with the notch area before setting the NSPrefersDisplaySafeAreaCompatibilityMode key to "false" to bypass compatibility mode.

The inclusion of a notch allowed Apple to make the bezels on the new 14-and 16-inch MacBook Pros considerably thinner compared to the previous 13-inch and 16-inch models. The new Liquid Retina XDR displays also feature ProMotion technology, which allows the screen to run at as high as 120Hz, and as low as 24Hz, similar to the iPad Pro.

The new MacBook Pros are available to order now and begin shipping next week, but delivery dates for various MacBook Pro configurations have already slipped, with some of the 16-inch ‌MacBook Pro‌ models now listing delivery dates ranging from November 2 to November 16, up from the original October 26 delivery date.

Update: This article was updated to clarify how the property list key for compatibility mode functions.

Related Roundup: MacBook Pro
Buyer's Guide: MacBook Pro (Buy Now)
Related Forums: MacBook Pro, macOS Monterey

Popular Stories

M5 MacBook Pro

Apple Apparently Cancels Plans for Two New MacBooks

Thursday September 3, 2026 7:12 am PDT by
Apple has canceled plans for a foldable MacBook and a larger OLED MacBook Pro model, according to research firm Omdia. In a new research note, Omdia said Apple has scrapped development of a large foldable MacBook that would have measured between 16.1 and 18 inches when unfolded. It was previously reported that this device had already slipped out of its original 2026 production window, with...
Apple MacBook Pro M4 hero

MacBook Pro With OLED Touch Screen Running macOS 27.1 Inside Apple

Monday September 14, 2026 2:04 pm PDT by
Apple's rumored 14-inch and 16-inch MacBook Pro models with touch-enabled OLED displays are currently being tested with macOS 27.1, which is scheduled for release in late October, according to the latest word from Bloomberg's Mark Gurman. While he previously said these high-end MacBook Pro models would be released in either late 2026 or early 2027, Gurman's latest report today has the...
macOS Golden Gate HDR

macOS Golden Gate Seems to Hint at MacBook Pro With OLED Display

Tuesday September 1, 2026 12:34 pm PDT by
As noted by Broadcasts developer Steven Troughton-Smith, many Liquid Glass interface elements on the macOS Golden Gate beta have an even glassier appearance on certain high-end OLED displays with HDR support than they do on ordinary displays. Apple reportedly plans to release new MacBook Pro or "MacBook Ultra" models with an OLED display by early 2027, so it is likely that macOS Golden Gate...

Top Rated Comments

Prabas Avatar
64 months ago
People don't realize that the notch area is extra screen space.

Attachment Image
Score: 66 Votes (Like | Disagree)
Mockletoy Avatar
64 months ago

I feel like this is such a clunky solution for something that we didn't really need? Is this to house a single webcam? In full screen mode your screen size is smaller than it could've been…
It’s really not. In full screen mode your screen is the same size and aspect ratio it would have otherwise been.

In regular desktop mode, you get extra space, bringing the aspect ratio from 16:10 to something much closer to 3:2.

The thing most people seem to be forgetting is that on PC laptops that have have razor thin bezels, no notch, and a webcam, the cam is either in a weird place or it’s a piece of low-res garbage (with a tiny sensor).

I really do not understand why people are so up in arms about this. It makes the screen bigger in one mode, the same size in the other, and the camera vastly better.
Score: 54 Votes (Like | Disagree)
64 months ago
What a relief. I was worried I wouldn't be able to see the notch when using full screen mode.
Score: 36 Votes (Like | Disagree)
Mockletoy Avatar
64 months ago

Let's be clear here: this upper space is NOT an "extended screen area", right? The notch cut's into the regular screen resolution, right? The Finder configuration option therefore cut's away display space and will downscale the full screen app, is it?
That is all entirely wrong.

It is an extended space. In fullscreen, with the notch area blacked out, the screen is regular old Apple 16:10 that it’s always been.

In regular desktop mode, you get extra space for the menu bar and below that is the same old Apple 16:10 rectangle.

So, in desktop mode you get more space for content because the menu bar has been pushed up into the area previously occupied by the bezel, and the overall aspect ratio is closer to 3:2 than 16:10.

You lose nothing, in either mode.
Score: 30 Votes (Like | Disagree)
Mockletoy Avatar
64 months ago
I cannot begin to fathom why people cover their MacBook webcams with tape, for so many reasons.

1) The camera cannot physically activate without turning on the LED. It just can’t. If the camera has power, the LED has power.

2) If someone has so thoroughly owned your computer that they can spy on you through your webcam, then they already have total access to your system and you’re screwed anyway, so worrying that they’re going to catch you picking your nose while they riffle through every file on your system seems a bit hysterical to me.

3) How do you disable the microphones? Or do you just take extra care to never say anything sensitive within earshot of your MacBook?

It’s all quite silly, isn’t it?
Score: 26 Votes (Like | Disagree)
BvizioN Avatar
64 months ago

A larger bezel would be a much much better solution
For you I guess, for many others not. I would rather have a "bezel" I can use for menu icons rather than a dead frame. And lets be honest, not many people are fan of thick bezels. Just the way it is.
Score: 20 Votes (Like | Disagree)
Latest Stories
M6 Pro Chip Result on Geekbench is Likely Fake
M6 Pro Chip Result on Geekbench is Likely Fake
15 hours ago
Apple Watch Ultra 4 Sees First Discount After Launch, Now $779.99 on Amazon
Apple Watch Ultra 4 Sees First Discount After Launch, Now $779.99 on Amazon
18 hours ago
Top Stories: iOS 27 and macOS Golden Gate Out Now, Siri AI Waitlist, and More
Top Stories: iOS 27 and macOS Golden Gate Out Now, Siri AI Waitlist, and More
20 hours ago
Apple Exec Says 'Hold Us Accountable' on iPhone Duo Crease
Apple Exec Says 'Hold Us Accountable' on iPhone Duo Crease
1 day ago
iPhone 18 Pro Max Requires 'Prepare to Ship' Battery Drain Before Shipping
iPhone 18 Pro Max Requires 'Prepare to Ship' Battery Drain Before Shipping
1 day ago
Hands-On With the Apple Watch Series 12
Hands-On With the Apple Watch Series 12
2 days ago
M5 Ultra and M6 Chip Benchmark Results Reveal Graphics Performance
M5 Ultra and M6 Chip Benchmark Results Reveal Graphics Performance
2 days ago
iPhone 18 Pro Max in U.S. Has Qualcomm's Snapdragon X80 Modem
iPhone 18 Pro Max in U.S. Has Qualcomm's Snapdragon X80 Modem
2 days ago
Apple Releases Xcode 27.1 Beta With iPhone Duo Support
Apple Releases Xcode 27.1 Beta With iPhone Duo Support
2 days ago
Apple Watch Series 12 vs. Ultra 4 Buyer's Guide
Apple Watch Series 12 vs. Ultra 4 Buyer's Guide
2 days ago
MacRumors Giveaway: Win an iPhone Duo From iMazing
MacRumors Giveaway: Win an iPhone Duo From iMazing
2 days ago
'Shop Different': Apple Retail Pioneer Ron Johnson Shares the Inside Story
'Shop Different': Apple Retail Pioneer Ron Johnson Shares the Inside Story
2 days ago
Apple Teams Up With ROSÉ for iPhone 18 Pro Camera Ad
Apple Teams Up With ROSÉ for iPhone 18 Pro Camera Ad
2 days ago
The MacRumors Show: Is the iPhone Duo Actually Worth It?
The MacRumors Show: Is the iPhone Duo Actually Worth It?
2 days ago
Apple Designers Explain the Thinking Behind iPhone Duo
Apple Designers Explain the Thinking Behind iPhone Duo
2 days ago
Are iPhone 17 Pro Cases Compatible With iPhone 18 Pro? Here's What Apple Says
Are iPhone 17 Pro Cases Compatible With iPhone 18 Pro? Here's What Apple Says
2 days ago
Apple Supplier Subsidiary Considering U.S. Flash Memory Factory
Apple Supplier Subsidiary Considering U.S. Flash Memory Factory
2 days ago
Apple Launch Day Deals on iPhone 18 Pro, AirPods 5, Apple Watch Series 12, and More
Apple Launch Day Deals on iPhone 18 Pro, AirPods 5, Apple Watch Series 12, and More
2 days ago
iPhone 18 Pro Teardown Reveals How Apple Shrunk the Dynamic Island
iPhone 18 Pro Teardown Reveals How Apple Shrunk the Dynamic Island
2 days ago
iPhone 18 Pro Demand Stronger Than Expected
iPhone 18 Pro Demand Stronger Than Expected
2 days ago
Fan Site Lets You 'Design the Next iPhone'
Fan Site Lets You 'Design the Next iPhone'
2 days ago
Apple Stores Have a New 'Hello' Easter Egg, Here's Why
Apple Stores Have a New 'Hello' Easter Egg, Here's Why
2 days ago
iPhone 18 Pro: The New Features You Should Try First
iPhone 18 Pro: The New Features You Should Try First
2 days ago
iPhone 18 Pro: Using the New Variable Aperture Lens
iPhone 18 Pro: Using the New Variable Aperture Lens
2 days ago
Forgot to Pre-Order iPhone 18 Pro? Apple Store Pickup Available Today at Most Locations
Forgot to Pre-Order iPhone 18 Pro? Apple Store Pickup Available Today at Most Locations
2 days ago
Apple CEO John Ternus Teases iPhone 18 Pro Launch Day
Apple CEO John Ternus Teases iPhone 18 Pro Launch Day
2 days ago
First iPhone 18 Pro, Apple Watch Series 12, Apple Watch Ultra 4 and AirPods 5 Orders Arriving to Customers
First iPhone 18 Pro, Apple Watch Series 12, Apple Watch Ultra 4 and AirPods 5 Orders Arriving to Customers
2 days ago
iPhone 18 Pro Launching Tomorrow With These 10 New Features
iPhone 18 Pro Launching Tomorrow With These 10 New Features
3 days ago
How to Get the New 3-Month Trial of Apple One Premier ($120 Value)
How to Get the New 3-Month Trial of Apple One Premier ($120 Value)
3 days ago
New iPhone 18 Pro Models Will Have Day One Update
New iPhone 18 Pro Models Will Have Day One Update
3 days ago