Is it possible to install previous macOS version on newest macbook model? I see people having terrible experience with macOS Tahoe yet I am considering purchasing a macbook..

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oscu0 4 days ago | parent | next [-]

On M5 MacBook Pro: no, simply because no builds with drivers for it exist

On all others, including the M4 MacBook Air and the M4 Pro/Max MacBook Pro currently for sale: yes. At most you'll have to make a bootable USB if it's already got Tahoe installed, you can even install in place (but some things might break, of course)

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inatreecrown2 6 days ago | parent | prev [-]

no this is not possible because apple stops signing older versions soon after they release the latest.

	▲	wtallis 5 days ago \| parent [-]
		No, that's a separate issue. You can upgrade a M4 or earlier machine from 15.6 to 15.7 even today, despite 26.0 being out for a while, so Apple's still signing a 15.x release at the same time as they're offering 26.x releases. (You likely won't be able to downgrade from 15.7 back to 15.6.) Downgrading a M5 machine to 15.x would be impossible not because of a signing issue but because Apple never released a 15.x build that supported M5 hardware.