The quick version: Yes, CleanMyMac works fully on macOS Tahoe 26, along with every version back to Big Sur 11. If you’re specifically running the older CleanMyMac X rather than the current app, Tahoe 26 is the last major macOS version it officially supports, and MacPaw recommends moving to the current CleanMyMac to keep receiving new features going forward.
The direct answer
macOS Tahoe 26, released September 15, 2025 and updated most recently to 26.5.2 on June 29, 2026, is fully supported by the current CleanMyMac. Every module, Smart Care, Cleanup, Protection, Performance, Applications, and My Clutter, works without limitation on Tahoe 26, and it’s one of the macOS versions MacPaw actively develops and tests against.
The full list of supported macOS versions
To run the current version of CleanMyMac with full functionality, your Mac needs one of these:
- macOS Tahoe 26
- macOS Sequoia 15
- macOS Sonoma 14
- macOS Ventura 13
- macOS Monterey 12
- macOS Big Sur 11
CleanMyMac doesn’t work with macOS Catalina 10.15 or earlier. MacPaw’s reasoning is straightforward: Apple itself stops providing security updates for older macOS versions eventually, and some of CleanMyMac’s features depend on technologies only available in more recent releases, so extending support backward isn’t just a matter of effort, it runs into real technical limits.
The important distinction: CleanMyMac vs CleanMyMac X on Tahoe
This is where confusion tends to creep in. If you’re running the current CleanMyMac, macOS Tahoe 26 support is simply part of ongoing development, and future macOS versions will likely be supported the same way as they arrive. If you’re still running the older CleanMyMac X, the picture is different: MacPaw has explicitly stated that Tahoe 26 is the last major macOS version CleanMyMac X supports. It’ll continue functioning on Tahoe 26, but it won’t be updated to support whatever comes after it.
MacPaw’s own recommendation for CleanMyMac X users is to move to the current CleanMyMac, which carries forward the tools and features long-time users are already familiar with while adding the newer capabilities introduced in the 2024 redesign, Smart Care, My Clutter, the Assistant, and ongoing support for future macOS releases.
What’s coming next: macOS 27 and Intel Macs
Worth knowing if you’re on an Intel Mac specifically: Apple has confirmed that macOS Tahoe 26 is the last version to support Intel-based Macs at all. macOS 27, expected in autumn 2026, will run exclusively on Apple Silicon. If you’re on Intel hardware, Tahoe 26 is effectively your final supported macOS version going forward, which is worth factoring into any decision about whether to keep the current CleanMyMac X or move to the newer CleanMyMac, since neither one changes what Apple itself supports on your hardware.
Checking your own compatibility before installing
Open the Apple menu, choose About This Mac, and confirm your macOS version against the list above. If you’re running anything from Big Sur through Tahoe 26, you’re covered for the current CleanMyMac without any caveats. If you’re on Catalina or earlier, the app simply won’t run, and there’s no workaround around that limitation short of upgrading macOS itself, assuming your specific Mac model supports a newer version.
You can download CleanMyMac directly once you’ve confirmed your macOS version, and the installer will let you know immediately if there’s any compatibility issue with your specific setup.
Frequently asked questions
Is CleanMyMac fully compatible with macOS Tahoe 26?
Yes. CleanMyMac works fully on macOS Tahoe 26, along with Sequoia, Sonoma, Ventura, Monterey, and Big Sur. It does not work on macOS Catalina 10.15 or earlier.
Is macOS Tahoe 26 the last version CleanMyMac X supports?
Yes, for the older CleanMyMac X specifically. MacPaw has stated Tahoe 26 is the last major macOS version it supports, and recommends upgrading to the current CleanMyMac for continued support.
Will macOS 27 drop Intel Mac support entirely?
Apple has confirmed macOS Tahoe 26 is the last version to support Intel Macs, and macOS 27, expected in autumn 2026, will run exclusively on Apple Silicon.
What’s the minimum macOS version for the current CleanMyMac?
macOS 11 Big Sur. Anything from Big Sur through the current Tahoe 26 runs the full current version without limitations.