The team over at Dortania have once again begun their yearly endeavor of bringing the latest macOS to many unsupported Macs. It may be possible to install Tahoe on an unsupported Mac using the latest OCLP, although compatibility is not guaranteed.

• See: GitHub dortania OCLP macOS 26 project
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• See: Greg Hrutkay’s video on installing Tahoe on a 2013 iMac

Mileage may vary

Not everyone is keen on running a beta macOS and it’s understandable. If you’re interested in getting this going on your Mac, keep in mind there may be issues related specifically to your model. There are many parts to this process which haven’t been figured out yet. Sometimes, like in the case of Dual CPUs in Sequoia on a 3,1, a proper solution comes later.

• USB may not work properly, even on slightly less-old Macs like a 2011 MBP or a 2013 iMac.
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• Graphical acceleration may not work properly.
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  • Without patches, anything transparent will be totally clear and possibly illegible.
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• One may install it without a USB installer, if you’re already on OCLP Sequoia. You will need the InstallAssistant.pkg for this method.
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• No trackpad drivers reported on some ‘Books such as the 2014 MacBook Air.
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The Plan

It’s hard to say for sure when a stable release would be out for macOS Tahoe. There is alot of work to be done with the recently added unsupported T2 Macs to the list, especially the chip making OCLP impossible to boot on a 2018/19 Air. Sources are saying they’re hopeful for winter 2025.