2 ms·
no this is not possible because apple stops signing older versions soon after they release the latest.
by inatreecrown2 1y ago
no this is not possible because apple stops signing older versions soon after they release the latest.
- wtallis 1y agoNo, 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.