macOS 12.3 Will Include Cloud Storage Changes Affecting Dropbox and OneDrive

Dropbox today announced that users who update to macOS 12.3 once that software version becomes available may temporarily encounter issues with opening online-only files in some third-party apps on their Mac.

General Dropbox Feature
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.

Dropbox did not provide any further details, but Microsoft recently said macOS 12.2 will be the last version that supports its own cloud storage service OneDrive's current online-only files implementation. Microsoft said OneDrive will be getting a new online-only files experience that is "more integrated with macOS" and "will have long-term support from Apple," adding that the current version is built on several technologies that are "now deprecated."

Altogether, it appears likely that Apple has given cloud storage services like Dropbox and OneDrive advanced notice about system-level changes that will affect online-only files starting with macOS 12.3. We've reached out to Apple and Dropbox for further details, but so far have not received any additional information.

Apple will likely release macOS 12.2 within the next week or so, and then macOS 12.3 beta testing should begin shortly after that.

(Thanks, Brad!)

Related Forum: macOS Monterey

Popular Stories

iphone 17 models

No iPhone 18 Launch This Year, Reports Suggest

Thursday January 1, 2026 8:43 am PST by
Apple is not expected to release a standard iPhone 18 model this year, according to a growing number of reports that suggest the company is planning a significant change to its long-standing annual iPhone launch cycle. Despite the immense success of the iPhone 17 in 2025, the iPhone 18 is not expected to arrive until the spring of 2027, leaving the iPhone 17 in the lineup as the latest...
duolingo ad live activity

Duolingo Used iPhone's Dynamic Island to Display Ads, Violating Apple Design Guidelines

Friday January 2, 2026 1:36 pm PST by
Language learning app Duolingo has apparently been using the iPhone's Live Activity feature to display ads on the Lock Screen and the Dynamic Island, which violates Apple's design guidelines. According to multiple reports on Reddit, the Duolingo app has been displaying an ad for a "Super offer," which is Duolingo's paid subscription option. Apple's guidelines for Live Activity state that...
Clicks Communicator Feature

'Clicks Communicator' Unveiled — Will You Carry This With Your iPhone?

Friday January 2, 2026 6:35 am PST by
The company behind the BlackBerry-like Clicks Keyboard accessory for the iPhone today unveiled a new Android 16 smartphone called the Clicks Communicator. The purpose-built device is designed to be used as a second phone alongside your iPhone, with the intended focus being communication over content consumption. It runs a custom Android launcher that offers a curated selection of messaging...
apple intelligence black

Report: Apple's AI Strategy Could Finally Pay Off in 2026

Tuesday December 30, 2025 9:01 am PST by
Apple's restrained artificial intelligence strategy may pay off in 2026 amid the arrival of a revamped Siri and concerns around the AI market "bubble" bursting, The Information argues. The speculative report notes that Apple has taken a restrained approach with AI innovations compared with peers such as OpenAI, Google, and Meta, which are investing hundreds of billions of dollars in data...
Low Cost MacBook Feature A18 Pro

Low-Price 12.9-Inch MacBook With A18 Pro Chip Reportedly Launching Early This Year

Friday January 2, 2026 9:08 am PST by
Apple plans to introduce a 12.9-inch MacBook in spring 2026, according to TrendForce. In a press release this week, the Taiwanese research firm said this MacBook will be aimed at the entry-level to mid-range market, with "competitive pricing." TrendForce did not share any further details about this MacBook, but the information that it shared lines up with several rumors about a more...
apple fitness 2026 1

Apple Teases 'Something Big' Coming Soon to Apple Fitness+

Tuesday December 30, 2025 2:11 pm PST by
The Apple Fitness+ Instagram account today teased that the service has "big plans" for 2026. In a video, several Apple Fitness+ trainers are shown holding up newspapers with headlines related to Apple Fitness+. What's Apple Fitness+ Planning for the New Year? Something Big is Coming to Apple Fitness+ The Countdown Begins. Apple Fitness+ 2026 is Almost Here 2026 Plans Still Under ...
Apple Fitness Plus hero

Apple Announces New Fitness+ Workout Programs, Strava Challenge, and More

Friday January 2, 2026 6:43 am PST by
Apple today announced a number of updates to Apple Fitness+ and activity with the Apple Watch. The key announcements include: New Year limited-edition award: Users can win the award by closing all three Activity Rings for seven days in a row in January. "Quit Quitting" Strava challenge: Available in Strava throughout January, users who log 12 workouts anytime in the month will win an ...
Mac Pro Feature Blue

What's Happening With the Mac Pro?

Wednesday December 31, 2025 9:59 am PST by
Apple hasn't updated the Mac Pro since 2023, and according to recent rumors, there's no update coming in the near future. In fact, Apple might be finished with the Mac Pro. Bloomberg recently said that the Mac Pro is "on the back burner" and has been "largely written off" by Apple. Apple apparently views the more compact Mac Studio as the ideal high-end pro-level desktop, and it has almost...

Top Rated Comments

kalafalas Avatar
52 months ago
I've been running the M1 native version of one drive since the beta came out, which includes the modern finder integration and I can say that it is AWESOME. no longer is one drive using tons of CPU and all the online vs local etc is native to finder similar to iCloud Drive, its a great upgrade!
Score: 18 Votes (Like | Disagree)
Kylo83 Avatar
52 months ago
I wonder what 12.3 will include to change this
Score: 9 Votes (Like | Disagree)
Mainyehc Avatar
51 months ago
This is a massive flustercuck on the part of Apple.

Their new little idea just screwed up my entire OneDrive workflow, because, guess what, I actually like having big external drives connected to my Macs and my entire OneDrive file structure ALWAYS available offline.

Here's the thing: with this newfangled API, not only the OneDrive folders look ridiculously amateurish (they are basically aliases, while the cache is the old folder, except renamed as “.ODContainer-OneDrive”, but the path given to the files is stored at ~/Library/CloudStorage, whether these two are on the same physical volume or not, but… users aren't exactly warned about that change at all) ALL files are treated as if they were only available on-line, whether they are cached locally or not, which means… NOTHING “Mac-like”/native works. No custom icons, no file tags/labels, no QuickLook… A complete, unmitigated mess. I don't know who screwed the pooch on this one, but I'm not about to sit idly by waiting for them to sort out this mess.

So what did I do? I immediately called Apple Care and demanded them to escalate this to Engineering at Cupertino, which I suspect they eventually will. I have a scheduled call on February the 5th with the same expert that answered me (she even knew from memory – or was a really fast researcher – that the equivalent iCloud solution by Apple stores stuff in ~/Library/Mobile Documents, so I'd say she was pretty knowledgable about the inner workings of macOS), so that we may produce a proper feedback report, complete with user logs and whatnot.

Then, I proceeded to shut down all instances of OneDrive, turn on hidden file view on the Finder (by pressing Command+Shift+period) and MOVE the whole shebang into my unlimited storage, academic Google Drive account. I'm giving up auto-save and one-click versioning access in Office365 apps, but honestly, considering how I already have a Time Machine backup drive permanently attached… Good riddance!

But Apple isn't getting away with this anyway… Why they would turn on this API mid-cycle, on a point update focused on an EXTREMELY important Safari security patch, instead of on a major 1x.0 version, when users kind of expect this level of disruption by default, is beyond me. This isn't added functionality, this is a functionality-breaking API change, and it's extremely bad form.

If Apple forces Google Drive to adopt this and messes that solution up as well, I'm gonna go mediaeval on them. I am, however, a bit optimistic; it's almost as if Google engineers knew – and cared about – just how bad the API was and, when forced to move away from the old one – which might explain why they changed their app from “Google Backup and Sync” back to “Google Drive”, but maybe that was just a happy coincidence – they just came up with their own custom thing… which I'm still not a huge fan of (those stupid “virtual connected server” links it creates on the sidebar every time it loads really nag me), but considering how the file structure still works and feels completely native, screw it. It's now my go-to solution for cloud storage, and I hope it stays that way.
Score: 8 Votes (Like | Disagree)
jacg Avatar
52 months ago
I wonder if this will affect Google Drive?
Score: 7 Votes (Like | Disagree)
MrGimper Avatar
52 months ago
Hopefully this OS-level API/support will mean that the Mac version of Synology Drive Client will finally support online files only. About time.
Score: 6 Votes (Like | Disagree)
jeremysteele Avatar
52 months ago

The codes I changed in VS Code on my Mac almost reflect immediately on my work PC, which is on the other side of the globe.
For the love of all that is holy, please use a tool like git, svn, mercurial, etc. Do not use file sync services to share source code between machines.
Score: 6 Votes (Like | Disagree)