Post #2443204
2026-01-11 19:31 UTC
@noheger@wien.rocks @siracusa@mastodon.social I’m wondering if my MacBook Air M4 could be downgraded to macOS 15 Sequoia.
I can’t remember if it shipped with macOS 26. I don’t think so. My Mastodon archive will probably tell me…
Replies (1)
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@nicolas17@social.treehouse.systems 2026-01-12 18:11
@noheger@wien.rocks @siracusa@mastodon.social @ianRobinson@mastodon.social You can downgrade M4, but you'd have to erase everything, and you're on your own for preserving your data. A full backup made on 26 wouldn't be compatible with 15.