Apple Confirms macOS 12.3 Deprecates Kernel Extensions Used by Dropbox and OneDrive

Apple today seeded the first beta of macOS 12.3 to developers for testing. In the release notes for the update, Apple confirms that it has deprecated kernel extensions used by Dropbox and Microsoft OneDrive and notes that both cloud storage services have replacements for the functionality currently in beta.

General Dropbox Feature
Earlier this week, Dropbox announced that users who update to macOS 12.3 may temporarily encounter issues with opening online-only files in some third-party apps on their Mac. Dropbox did not provide a reason for this issue, but it is now clear that it relates to the kernel extensions that enabled this functionality being deprecated by Apple.

In a support document and an email to customers, Dropbox said it is actively working on full support for online-only files on macOS 12.3 and will begin rolling out an updated version of its Mac app to beta testers in March. In the meantime, Dropbox users who update to macOS 12.3 will still be able to open online-only files in Finder.

Microsoft is also working on a new online-only files experience for OneDrive that is "more integrated with macOS" and "will have long-term support from Apple."

Related Forum: macOS Monterey

Popular Stories

maxresdefault

Apple Shows Off a Key Reason to Upgrade to the iPhone 17

Saturday February 7, 2026 9:26 am PST by
Apple today shared an ad that shows how the upgraded Center Stage front camera on the latest iPhones improves the process of taking a group selfie. "Watch how the new front facing camera on iPhone 17 Pro takes group selfies that automatically expand and rotate as more people come into frame," says Apple. While the ad is focused on the iPhone 17 Pro and iPhone 17 Pro Max, the regular iPhone...
apple wallet drivers license feature iPhone 15 pro

Apple Says These 7 U.S. States Plan to Offer iPhone Driver's Licenses

Monday February 9, 2026 6:24 am PST by
In select U.S. states, residents can add their driver's license or state ID to the Apple Wallet app on the iPhone and Apple Watch, and then use it to display proof of identity or age at select airports and businesses, and in select apps. The feature is currently available in 13 U.S. states and Puerto Rico, and it is expected to launch in at least seven more in the future. To set up the...
14 inch MacBook Pro Keyboard

New MacBook Pros Could Now Arrive in March

Sunday February 8, 2026 6:02 am PST by
New MacBook Pro models with the M5 Pro and M5 Max chips could arrive as soon as Monday, March 2, according to Bloomberg's Mark Gurman. In today's "Power On" newsletter, Gurman said that the release of new MacBook Pro models is tied to the release of macOS Tahoe 26.3. The launch is said to be slated for as early as the week of March 2. He added that the M4 Pro and M4 Max models on sale today...
Apple Logo Zoomed

Apple Expected to Launch These 10+ Products Over the Coming Months

Tuesday February 10, 2026 6:33 am PST by
It has been a slow start to 2026 for Apple product launches, with only a new AirTag and a special Apple Watch band released so far. We are still waiting for MacBook Pro models with M5 Pro and M5 Max chips, the iPhone 17e, a lower-cost MacBook with an iPhone chip, long-rumored updates to the Apple TV and HomePod mini, and much more. Apple is expected to release/update the following products...
wwdc sans text feature

Apple Rumored to Announce New Product on February 19

Thursday February 5, 2026 12:22 pm PST by
Apple plans to announce the iPhone 17e on Thursday, February 19, according to Macwelt, the German equivalent of Macworld. The report, citing industry sources, is available in English on Macworld. Apple announced the iPhone 16e on Wednesday, February 19 last year, so the iPhone 17e would be unveiled exactly one year later if this rumor is accurate. It is quite uncommon for Apple to unveil...

Top Rated Comments

usagora Avatar
53 months ago

"Deprecates" just means they remove support and/or express disapproval.

I think "breaks" is the right word here, even though it doesn't sound as impressive. :)
No, deprecate is the correct word. Obviously both of the developers knew about it in advance and have made the necessary adjustments. "Break" would be if they didn't warn anyone, and you install the Beta and all of a sudden Dropbox or OneDrive doesn't work, and the developers have to scramble to fix it.
Score: 9 Votes (Like | Disagree)
Think|Different Avatar
53 months ago
I moved on to other services (iCloud Drive works great!) and never looked back. Crazy how relevant DB was – and how hard they fell by bloating their offerings.
Score: 7 Votes (Like | Disagree)
svenmany Avatar
53 months ago
Dropbox works great for me. My wife and I share a single Dropbox account (single login). Since we have separate Apple IDs, it would be less convenient simulating that with iCloud. Also, I access Dropbox a lot from Windows. I've never had any issues with Dropbox on all platforms over the many years I've used it. I've had a number of issues with iCloud file sync (e.g. files added elsewhere not showing up on my Mac).

I have no desire to use offline files, so I hope my Dropbox experiences is not impacted by this change. I see that OneDrive is going to default to off-line files with local files requiring extra effort; I hope Dropbox doesn't do that.
Score: 7 Votes (Like | Disagree)
Digital Skunk Avatar
53 months ago
Dropbox is still far superior for filesharing outside of the Apple ecosystem and with large teams. I don't know how the basic versions compare, but for my team of 5 Dropbox is as close to perfect as we can get.

For personal use, and for my family, it's iCloud all the way. At that point we're in the Apple system, so there's no reason to store anything outside of it.
Score: 5 Votes (Like | Disagree)
soid.exe Avatar
53 months ago
If I’m reading it right, Dropbox should sue Apple.
Score: 4 Votes (Like | Disagree)
leicaman Avatar
53 months ago

If I’m reading it right, Dropbox should sue Apple.
You're not reading it right. Apple told them what they needed to do long ago, and they actually do have the fix in beta. Users just need to wait until the fix is installed before upgrading Monterey.
Score: 4 Votes (Like | Disagree)