How to downgrade from macOS 26 Tahoe on a new Mac

February 28, 2026
How to downgrade from macOS 26 Tahoe on a new Mac

So, here’s something that might surprise you — if you just got a new Mac with macOS 26 Tahoe, you might actually want to consider downgrading. Andrew Cunningham from Ars Technica recently bought a shiny new M4 MacBook Air, and while he raves about the hardware, he points out that the new Liquid Glass redesign in macOS 26 has some gnarly bugs — things like weird window resizing and Finder glitches. And get this — longtime users and developers are pretty annoyed, with some even urging folks not to upgrade yet. Now, here’s where it gets interesting: Apple’s own data shows that adoption rates for iOS 26 are pretty normal, but the Mac version’s causing more headaches. According to Andrew, if you're experiencing these issues or just prefer the older, more stable versions, downgrading is actually doable. It’s not complicated — just takes a little know-how. So, if you’re feeling frustrated, keep an eye out for guides. This could be your way back to smoother sailing, as Andrew notes that sometimes sticking with what works beats chasing the latest, buggy update.

An Ars Technica colleague recently bought a new M4 MacBook Air. I have essentially nothing bad to say about this hardware, except to point out that even in our current memory shortage apocalypse, Apple is still charging higher-than-market-rates for RAM and SSD upgrades. Still, most people buying this laptop will have a perfectly nice time with it.

But for this colleague, it was also their first interaction with macOS 26 Tahoe and the Liquid Glass redesign, the Mac's first major software design update since the Apple Silicon era began with macOS 11 Big Sur in 2020.

Negative consumer reaction to Liquid Glass has been overstated by some members of the Apple enthusiast media ecosystem, and Apple's data shows that iOS 26 adoption rates are roughly in line with those of the last few years. But the Mac's foray into Liquid Glass has drawn particular ire from longtime users (developers Jeff Johnson and Norbert Heger have been tracking persistently weird Finder and window resizing behavior, to pick two concrete examples, and Daring Fireball's John Gruber has encouraged users not to upgrade).

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Audio Transcript

An Ars Technica colleague recently bought a new M4 MacBook Air. I have essentially nothing bad to say about this hardware, except to point out that even in our current memory shortage apocalypse, Apple is still charging higher-than-market-rates for RAM and SSD upgrades. Still, most people buying this laptop will have a perfectly nice time with it.

But for this colleague, it was also their first interaction with macOS 26 Tahoe and the Liquid Glass redesign, the Mac's first major software design update since the Apple Silicon era began with macOS 11 Big Sur in 2020.

Negative consumer reaction to Liquid Glass has been overstated by some members of the Apple enthusiast media ecosystem, and Apple's data shows that iOS 26 adoption rates are roughly in line with those of the last few years. But the Mac's foray into Liquid Glass has drawn particular ire from longtime users (developers Jeff Johnson and Norbert Heger have been tracking persistently weird Finder and window resizing behavior, to pick two concrete examples, and Daring Fireball's John Gruber has encouraged users not to upgrade).

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