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Last Quarter on My Mac: Which apps for macOS Tahoe?

✇The Eclectic Light Company
hoakley

For the last three months, since Apple released the first developer beta of macOS 26 Tahoe, I’ve been fairly busy updating my apps so they’re ready for its release. This quarter of the year is usually quite busy, but the changes brought by Tahoe have required more work than any version of macOS so far. This article provides checklists of every one of my apps and command tools that I believe should be compatible with macOS 26, and in most cases I have tweaked and rebuilt to ensure that.

The first problem posed by Tahoe was its rough handling of app icons that it didn’t like, because they deviated from its standard square with rounded corners. This isn’t something to be ignored, as if you can’t recognise apps in the Dock, how can you use them?

Here are two icons for the same app viewed in Tahoe. The left one uses a traditional AppIcon.icns icon image, while that on the right is the same circular PNG that has been applied using Icon Composer and added as a .icon file for Tahoe. So every supported app has required a new icon to be designed for it, and incorporated into a new build. Here’s part of my beauty parade.

Unfortunately, the moment you rebuild an app with its new icon, its whole interface is also rebuilt to Tahoe’s new standards. Those not only include all those infernal rectangles with rounded corners, but many controls and elements are larger than in Sequoia. While this is implemented intelligently so as not to upset layouts when running in older versions of macOS, Tahoe’s new look can wreak havoc with windows and dialogs.

This demo, Mallyshag, looks the same in Sequoia above, but has become a mess in Tahoe (below) because of those changed control dimensions.

Those three buttons are significantly wider, so now overlap one another and are wider than the text box below. They need a careful overhaul before they’re ready for Tahoe. Conversion can also have unexpected side-effects: for example, I’ve had some selectable text fields changed to be editable as well.

Here are the 31 updated apps that I have equipped with a new icon and adjusted their interface for Tahoe:

There are also my three macOS virtualisers for Apple silicon Macs, which require more than an overhaul. However, I regularly use these in Tahoe and believe they’re fully compatible, even if their icons will disappoint:

I intend working on those in the coming months, to update them and cast them into fresh interfaces.

I have also tested five of my command tools, and believe they too are fully compatible with Tahoe:

At least they don’t have custom icons.

So that was the summer of 2025, in more nutshells that I had expected. I hope you still find these useful, and will report any problems you encounter.

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